SIST EN 16798-5-1:2018
(Main)Energy performance of buildings - Ventilation for buildings - Part 5-1: Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Method 1: Distribution and generation
Energy performance of buildings - Ventilation for buildings - Part 5-1: Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Method 1: Distribution and generation
Table 1 shows the relative position of this standard within the EN EPB set of standards.
(...)
This draft standard covers energy performance calculation of mechanical ventilation and air conditioning systems. It takes into account the generation (air handling unit) and distribution (duct system) parts. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in prEN 16798-7 (revised EN 15242). A calculation method for compact ventilation systems with integrated heating/cooling generation, using a monthly or seasonal calculation time step, is provided in a separate standard prEN 16798-5-2.
Energetische Bewertung von Gebäuden - Lüftung von Gebäuden - Teil 5-1: Berechnungsmethoden für den Energiebedarf von Lüftungs- und Klimaanlagen (Module M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Methode 1: Verteilung und Erzeugung
Tabelle 1 stellt die relative Position der vorliegenden Norm im Satz der EN-EPB-Normen dar.
(...)
Dieser Norm-Entwurf behandelt die Berechnung der Gesamtenergieeffizienz von mechanischen Lüftungs- und Klimaanlagen. Sie berücksichtigt die Teile zur Erzeugung (zentrales raumlufttechnisches Gerät) und zur Verteilung (Luftleitungssystem). Sie behandelt nicht den Teil zur Emission (Berechnung der erforderlichen Luftvolumenströme und/oder Zuluftbedingungen), der durch prEN 16798 7 (überarbeitete EN 15242) abgedeckt ist. Ein Berechnungsverfahren für Kompaktlüftungsanlagen mit integrierter Heizung/Kühlung unter Anwendung eines monatlichen oder saisonalen Berechnungszeitschritts ist in einer separaten Norm, prEN 16798 5 2, enthalten.
Performance énergétique des bâtiments - Ventilation des bâtiments - Partie 5-1: Méthodes de calcul des besoins énergétiques des systèmes de ventilation et de conditionnement d'air (Modules M5‐6, M5‐8, M6‐5, M6‐8, M7‐5, M7‐8) - Méthode 1: Distribution et génération
Le Tableau 1 présente la position relative de la présente norme par rapport à l'ensemble de normes EN PEB.
(...)
Le présent projet de norme traite du calcul de la performance énergétique des systèmes de ventilation mécanique et de conditionnement d'air. Il prend en compte les aspects relatifs à la génération (caisson de traitement d'air) et à la distribution (système de conduit). Il ne traite pas des aspects relatifs aux émissions (calcul des débits volumiques requis et/ou conditions pour l'air fourni), qui sont traités dans le prEN 16798 7 (révisant l'EN 15242). Une méthode de calcul pour les systèmes de ventilation compacts avec génération de chaleur/froid intégrée, utilisant un pas de calcul mensuel ou saisonnier, est fournie dans une norme séparée, prEN 16798-5-2.
Energijske lastnosti stavb - Prezračevanje stavb - 5-1. del: Metode za izračun potrebne energije za sisteme prezračevanja in klimatizacije - Moduli M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 - Metoda 1: Distribucija in proizvodnja
Preglednica 1 prikazuje relativen položaj tega standarda v sklopu standardov EN EPB.
(...)
Ta osnutek standarda zajema izračun energetske učinkovitosti mehanskih prezračevalnih sistemov in klimatskih naprav. Upošteva dele za proizvajanje (prezračevalna enota) in porazdelitev (sistem kanalov). Ne zajema pa dela emisij (izračun potrebnega volumenskega pretoka in/ali pogojev dovedenega zraka), ki je zajet v standardu prEN 16798-7 (revidiran standard EN 15242). Računska metoda z mesečnim ali sezonskim izračunom za kompaktne prezračevalne sisteme z vgrajenim ogrevanjem/hlajenjem je podana v ločenem standardu prEN 16798-5-2.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Energetische Bewertung von Gebäuden - Lüftung von Gebäuden - Teil 5-1: Berechnungsmethoden für den Energiebedarf von Lüftungs- und Klimaanlagen (Module M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Methode 1: Verteilung und ErzeugungEnergy performance of buildings - Ventilation for buildings - Part 5-1: Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) - Method 1: Distribution and generation91.140.30VLVWHPLVentilation and air-conditioning systemsICS:Ta slovenski standard je istoveten z:EN 16798-5-1:2017SIST EN 16798-5-1:2018en,fr,de01-julij-2018SIST EN 16798-5-1:2018SLOVENSKI
STANDARDSIST EN 15241:2007/AC:2011SIST EN 15241:20071DGRPHãþD
SIST EN 16798-5-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16798-5-1
May
t r s y ICS
{ sä s t rä s râ
{ sä s v rä u r Supersedes EN
s w t v sã t r r yEnglish Version
Energy performance of buildings æ Ventilation for buildings æ Part
wæ sã Calculation methods for energy requirements of ventilation and air conditioand generation Performance énergétique des bâtiments æ Ventilation des bâtiments æ Partie
wæ sã Méthodes de calcul des besoins énergétiques des systèmes de ventilation et de dules M wæ xá M wæ zá M xæ wá génération
Energieeffizienz von Gebäuden æ Lüftung von Gebäuden æ Teil
wæ sã Berechnungsmethoden für den Energiebedarf von Lüftungsæ und Klimaanlagen Methode
sã Verteilung und Erzeugung This European Standard was approved by CEN on
t y February
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y { zæ wæ sã t r s y ESIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 2 Contents Page European foreword . 4 Introduction . 7 1 Scope . 9 2 Normative references . 11 3 Terms and definitions . 12 4 Symbols and subscripts . 13 4.1 Symbols . 13 4.2 Subscripts . 14 5 Brief description of the method . 14 5.1 Output of the method . 14 5.2 General description of the method . 14 6 Calculation method . 15 6.1 Output data . 15 6.2 Calculation time interval . 18 6.3 Input data . 18 6.3.1 Source of data, general . 18 6.3.2 Product data . 18 6.3.3 System design data . 24 6.3.4 Operating conditions . 29 6.3.5 Constants and physical data . 30 6.3.6 Input data from Annex A (Annex B) . 31 6.4 Calculation procedure . 31 6.4.1 Applicable time intervals . 31 6.4.2 Distribution calculation . 31 6.4.3 Generation calculation . 35 7 Quality control . 54 8 Compliance check. 54 Annex A (normative)
Input and method selection data sheet — Template . 55 A.1 General . 55 A.2 References . 56 A.3 Product description data . 56 A.4 Product technical data . 56 A.4.1 Duct tightness class . 56 A.4.2 Air handling unit tightness class . 56 A.4.3 Heat recovery leakage and outdoor air factors . 57 A.4.4 Nominal heat recovery temperature efficiency and constants for the velocity dependence . 57 A.4.5 Humidity recovery efficiency and constants for the calculation . 58 A.4.6 Value for adiabatic cooling humidifier efficiency . 58 A.4.7 Values for cooling and heating coil calculation . 58 A.4.8 Air handling unit related values . 59 A.4.9 Specific pump energy for humidification . 59 A.5 System design data . 60 SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 3 A.5.1 Qualitative process design data choices . 60 A.5.2 Fan motor heat recovery factors . 60 A.5.3 Quantitative process design data choices . 60 A.5.4 Limit values for the defrost control . 61 A.5.5 Process control options . 61 A.5.6 Heat recovery control options . 61 Annex B (informative)
Input and method selection data sheet — Default choices . 62 B.1 General . 62 B.2 References . 62 B.3 Product description data . 63 B.4 Product technical data . 63 B.4.1 Duct tightness class . 63 B.4.2 Air handling unit tightness class . 64 B.4.3 Heat recovery leakage and outdoor air factors . 64 B.4.4 Nominal heat recovery temperature efficiency and constants for the velocity dependence . 64 B.4.5 Humidity recovery efficiency and constants for the calculation . 65 B.4.6 Value for adiabatic cooling humidifier efficiency . 65 B.4.7 Values for cooling and heating coil calculation . 65 B.4.8 Air handling unit related default values . 66 B.4.9 Specific pump energy for humidification . 66 B.5 System design data . 67 B.5.1 Qualitative process design data choices . 67 B.5.2 Fan motor heat recovery factors . 67 B.5.3 Quantitative process design data choices . 67 B.5.4 Limit values for the defrost control . 68 B.5.5 Control options . 68 B.5.6 Heat recovery control options . 68 Annex C (normative)
Calculation method for ground preheating and -cooling. 70 C.1 Calculation. 70 C.1.1 Temperature difference . 70 C.1.2 Moisture difference . 71 C.1.3 Pressure losses of the heat exchanger . 72 C.2 Data . 72 Annex D (informative)
Calculation method for rotary heat exchangers . 73 D.1 Calculation. 73 D.1.1 Heat recovery . 73 D.1.2 Moisture recovery . 73 D.2 Data . 75 Bibliography . 76
SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 4 European foreword This document (EN 16798-5-1:2017) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2017, and conflicting national standards shall be withdrawn at the latest by November 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15241:2007. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. Regarding the modifications that were made with regard to EN 15241:2007, these are listed in the last paragraph in the Introduction. This standard has been produced to meet the requirements of Directive 2010/31/EU 19 May 2010 on the energy performance of buildings (recast), referred to as “recast EPDB”. EN 15241:2007 was produced to meet the requirements of Directive 2002/91/EC 16 December 2002 on energy performance of buildings referred to as “EPBD”. For the convenience of Standards users CEN/TC 156, together with the responsible Working Group Convenors, have prepared a simple table below relating, where appropriate, the relationship between the ‘EPBD’ and ‘recast EPBD’ standard numbers prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”. EPBD EN Number Recast EPBD EN Number Title EN 15251 EN 16798-1 Energy performance of buildings — Ventilation for buildings — Part 1: Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics (Module M1-6) (revision of EN 15251) N/A CEN/TR 16798-2 Energy performance of buildings — Ventilation for buildings — Part 2: Interpretation of the requirements in EN 16798-1 — Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics (Module M1-6) SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 5 EPBD EN Number Recast EPBD EN Number Title EN 13779 EN 16798-3 Energy performance of buildings — Ventilation for buildings — Part 3: For non-residential buildings — Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4) (revision of EN 13779) N/A CEN/TR 16798-4 Energy performance of buildings — Ventilation for buildings — Part 4: Interpretation of the requirements in EN 16798- 3 — For non-residential buildings — Performance requirements for ventilation and room-conditioning systems(Modules M5-1, M5-4) EN 15241 EN 16798-5-1 Energy performance of buildings — Ventilation for buildings — Part 5-1: Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8) — Method 1: Distribution and generation (revision of EN 15241) EN 15241 EN 16798-5-2 Energy performance of buildings — Ventilation for buildings — Part 5-2: Calculation methods for energy requirements of ventilation systems (Modules M5-6.2, M5-8.2) — Method 2: Distribution and generation (revision of EN 15241) N/A CEN/TR 16798-6 Energy performance of buildings — Ventilation for buildings — Part 6: Interpretation of the requirements in EN 16798-5-1 and EN 16798-5-2 — Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M 6-5, M6-8 , M7-5, M7-8) EN 15242 EN 16798-7 Energy performance of buildings — Ventilation for buildings — Part 7: Calculation methods for the determination of air flow rates in buildings including infiltration (Module M5-5) (revision of EN 15242) N/A CEN/TR 16798-8 Energy performance of buildings — Ventilation for buildings — Part 8: Interpretation of the requirements in EN 16798-7 — Calculation methods for the determination of air flow rates in buildings including infiltration – (Module M5-5) EN 15243 EN 16798-9 Energy performance of buildings — Ventilation for buildings — Part 9: Calculation methods for energy requirements of cooling systems (Modules M4-1, M4-4, M4-9) — General (revision of EN 15243) SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 6 EPBD EN Number Recast EPBD EN Number Title N/A CEN/TR 16798-10 Energy performance of buildings — Ventilation for buildings — Part 10: Interpretation of the requirements in EN 16798-9 — Calculation methods for energy requirements of cooling systems (Module M4-1,M4-4, M4-9) – General N/A EN 16798-13 Energy performance of buildings — Ventilation for buildings — Part 13: Calculation of cooling systems (Module M4-8) — Generation N/A CEN/TR 16798-14 Energy performance of buildings — Ventilation for buildings — Part 14: Interpretation of the requirements in EN 16798-13 — Calculation of cooling systems (Module M4-8) — Generation N/A EN 16798-15 Energy performance of buildings — Ventilation for buildings — Part 15: Calculation of cooling systems (Module M4-7) — Storage N/A CEN/TR 16798-16 Energy performance of buildings — Ventilation for buildings — Part 16: Interpretation of the requirements in EN 16798-15 — Calculation of cooling systems (Module M4-7) — Storage EN 15239 and EN 15240 EN 16798-17 Energy performance of buildings — Ventilation for buildings — Part 17: Guidelines for inspection of ventilation and air- conditioning systems (Module M4-11, M5-11, M6-11, M7-11) N/A CEN/TR 16798-18 Energy performance of buildings — Ventilation for buildings — Part 18: Interpretation of the requirements in EN 16798-17 — Guidelines for inspection of ventilation and air-conditioning systems (Module M4-11, M5-11, M6-11, M7-11) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 7 Introduction This European Standard is part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings, called “set of EPB standards”. All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency. All EPB standards provide a certain flexibility with regard to the methods, the required input data and references to other EPB standards, by the introduction of a normative template in Annex A and Annex B with informative default choices. For the correct use of this standard a normative template is given in Annex A to specify these choices. Informative default choices are provided in Annex B. The main target groups of this standard are all the users of the set of EPB standards (e.g. engineers, regulators, programmers). Use by or for regulators: In case the standard is used in the context of national or regional legal requirements, mandatory choices may be given at national or regional level for such specific applications. These choices (either the informative default choices from Annex B or choices adapted to national / regional needs, but in any case following the template of this Annex A) can be made available as national annex or as separate (e.g. legal) document (national data sheet). NOTE 1 So in this case: — the regulators will specify the choices; — the individual user will apply the standard to assess the energy performance of a building, and thereby use the choices made by the regulators. Topics addressed in this standard can be subject to public regulation. Public regulation on the same topics can override the default values in Annex B of this standard. Public regulation on the same topics can even, for certain applications, override the use of this standard. Legal requirements and choices are in general not published in standards but in legal documents. In order to avoid double publications and difficult updating of double documents, a national annex may refer to the legal texts where national choices have been made by public authorities. Different national annexes or national data sheets are possible, for different applications. It is expected, if the default values, choices and references to other EPB standards in Annex B are not followed due to national regulations, policy or traditions, that: — national or regional authorities prepare data sheets containing the choices and national or regional values, according to the model in Annex A. In this case the National Annex (e.g. NA) refers to this text; — or, by default, the national standards body will consider the possibility to add or include a National Annex in agreement with the template of Annex A, in accordance to the legal documents that give national or regional values and choices. Default references to EPB standards other than EN ISO 52000-1 are identified by the EPB module code number and given in Annex A (normative template) and Annex B (informative default choice). NOTE 2 Example of EPB module code number: M5–5, or M5–5.1 (if module M5–5 is subdivided), or M5–5/1 (if reference to a specific clause of the standard covering M5–5). Further target groups are parties wanting to motivate their assumptions by classifying the building energy performance for a dedicated building stock. SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 8 More information is provided in the Technical Report accompanying this standard (CEN/TR 16798-6 [1]), including examples aiming to check the quality and usability of the standard. CEN/TC 156 deals with ventilation and air conditioning systems in buildings. Subjects covered by CEN/TC 156 are: a) energy performance calculation for ventilation, air conditioning and cooling systems; b) inspection of ventilation and air conditioning systems; and c) installation and commissioning of ventilation and air conditioning systems. The revision includes changes: — for a rearrangement of content versus EN 15242:2007, in order to better fit in the modular structure given in EN ISO 52000-1; — to cover full air conditioning systems (including heating, cooling humidification, dehumidification; definition see the module M5-1 standard); — for an improved fan energy calculation, taking into consideration control strategies according to CEN/TC 247 and fan product standards/data; — for an improved calculation of different types of heat recovery devices (air-to-air heat exchangers, rotary and pumped circuit), delivering the efficiency and auxiliary energy depending on control, including moisture transfer; — for the consideration of recirculation, including control; — for an improved humidification calculation for different humidifier types, including auxiliary energy; — for the calculation of adiabatic cooling; — the formatting according to the new rules set in CEN/TS 16629; and — the consideration of ISO/TC 205 work performed in the meantime. SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 9 1 Scope This European Standard covers the energy performance calculation of mechanical ventilation and air conditioning systems, including humidification and dehumidification. It takes into account the generation (air handling unit) and distribution (duct system) parts. It includes a simplified calculation of adiabatic cooling systems. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in EN 16798-7. It does not include the calculation of heating/cooling generation. This method is focussed on large customized ventilation and air conditioning systems, typically used in commercial buildings, although the application is not restricted on the basis of building or space use type. A calculation method for ventilation systems with integrated heating/cooling generation, including domestic hot water generation, using a monthly or seasonal calculation interval or a bin method, is provided in a separate standard, EN 16798-5-2. This method does not include humidification and dehumidification or adiabatic cooling. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000-1. NOTE 1 In CEN ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1. SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 10 Table 1 — Position of this standard (in casu M5–6.1, M5–8.1, M6–5, M6–8, M7–5, M7–8) within the modular structure of the set of EPB standards
Overarching
Building (as such)
Technical Building Systems Submodule
Descriptions
Descriptions
Descriptions Heating Cooling Ventilation Humidification Dehumidification Domestic Hot water Lighting Building automation & control PV, wind, . sub1
M1
M2
M3 M4 M5 M6 M7 M8 M9 M10 M11 1
General
General
General
2
Common terms and definitions; symbols, units and subscripts
Building Energy Needs
Needs
a
3
Applications
(Free) Indoor Conditions without Systems
Maximum Load and Power
4
Ways to Express Energy Performance
Ways to Express Energy Performance
Ways to Express Energy Performance
5
Building categories and Building Boundaries
Heat Transfer by Transmission
Emission & control
EN 16798-5-1 EN 16798-5-1
6
Building Occupancy and Operating Conditions
Heat Transfer by Infiltration and Ventilation
Distribution & control
EN 16798-5-1
7
Aggregation of Energy Services and Energy Carriers
Internal Heat Gains
Storage & control
SIST EN 16798-5-1:2018
EN 16798-5-1:2017 (E) 11
Overarching
Building
...
SLOVENSKI STANDARD
oSIST prEN 16798-5-1:2015
01-julij-2015
(QHUJHWVNDXþLQNRYLWRVWVWDYE0RGXOL000000
3UH]UDþHYDQMHVWDYE5DþXQVNHPHWRGH]DHQHUJHWVNH]DKWHYHVLVWHPRY]D
SUH]UDþHYDQMHLQNOLPDWL]DFLMRGHO 'LVWULEXFLMDLQSURL]YRGQMD UHYL]LMD(1
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Energy performance of buildings - Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 -
Ventilation for buildings - Calculation methods for energy requirements of ventilation and
air conditioning systems - Part 5-1: Distribution and generation (revision of EN 15241) -
Method 1
Energieeffizienz von Gebäuden - Module M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 - Lüftung
von Gebäuden - Berechnungsmethoden für den Energiebedarf von Lüftungs- und
Klimaanlagen - Teil 5-1: Verteilung und Erzeugung (Revision von EN 15241) - Methode 1
Performance énergétique des bâtiments - Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8
- Ventilation des bâtiments - Méthodes de calcul pour les besoins énergétiques des
systèmes de ventilation et de conditionnement d'air - Partie 5-1 : Distribution et
génération (révision de l'EN 15241) - Méthode 1
Ta slovenski standard je istoveten z: prEN 16798-5-1
ICS:
91.120.10 Toplotna izolacija stavb Thermal insulation
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning
oSIST prEN 16798-5-1:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 16798-5-1:2015
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oSIST prEN 16798-5-1:2015
EUROPEAN STANDARD
DRAFT
prEN 16798-5-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 91.120.10; 91.140.30 Will supersede EN 15241:2007
English Version
Energy performance of buildings - Modules M5-6, M5-8, M6-5,
M6-8, M7-5, M7-8 - Ventilation for buildings - Calculation
methods for energy requirements of ventilation and air
conditioning systems - Part 5-1: Distribution and generation
(revision of EN 15241) - method 1
Energieeffizienz von Gebäuden - Teil 5: Lüftung von
Gebäuden - Module M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 -
Berechnungsmethoden für energetische Anforderungen von
Lüftungs- und Klimaanlagen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 156.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16798-5-1:2015 E
worldwide for CEN national Members.
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oSIST prEN 16798-5-1:2015
prEN 16798-5-1:2015 (E)
Contents Page
Foreword .4
Introduction .6
1 Scope .7
2 Normative references .8
3 Terms and definitions .9
4 Symbols and abbreviations . 10
4.1 Symbols . 10
4.2 Subscripts . 11
5 Description of the method — Output of the method . 11
6 Method . 12
6.1 Output data . 12
6.2 Calculation time steps . 14
6.3 Input data . 14
6.3.1 Source of data . 14
6.3.2 Product data . 15
6.3.3 System design data . 20
6.3.4 Operating conditions . 23
6.3.5 Constants and physical data . 24
6.4 Calculation procedure . 24
6.4.1 Applicable timestep . 24
6.4.2 Distribution calculation . 24
6.4.3 Generation calculation . 28
6.4.4 Energy calculation . 41
7 Quality control . 47
8 Compliance check . 47
Annex A (normative) Template for input data and choices — Method 1 . 48
A.1 Product description data — Default product description data . 48
A.2 Product technical data . 48
A.2.1 Default duct tightness class . 48
A.2.2 Default air handling unit tightness class . 48
A.2.3 Default heat recovery leakage and outdoor air factors . 48
A.2.4 Default nominal heat recovery temperature efficiency and constants for the velocity
dependence . 49
A.2.5 Default humidity recovery efficiency and constants for the calculation . 49
A.2.6 Default value for adiabatic cooling humidifier efficiency . 50
A.2.7 Default values for cooling and heating coil calculation . 50
A.2.8 Air handling unit related default values . 50
A.2.9 Fan related default values . 51
A.2.10 Specific pump energy for humidification . 51
A.3 System design data . 52
A.3.1 Qualitative process design data choices . 52
A.3.2 Default fan motor heat recovery factors . 52
A.3.3 Default quantitative process design data choices . 52
A.3.4 Limit values for the defrost control . 52
A.3.5 Default process control options . 53
A.3.6 Default heat recovery control options . 53
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Annex B (informative) Default input data — Method 1 . 54
B.1 Product description data — Default product description data . 54
B.2 Product technical data . 54
B.2.1 Default duct tightness class . 54
B.2.2 Default air handling unit tightness class . 54
B.2.3 Default heat recovery leakage and outdoor air factors . 54
B.2.4 Default nominal heat recovery temperature efficiency and constants for the velocity
dependence . 55
B.2.5 Default humidity recovery efficiency and constants for the calculation . 55
B.2.6 Default value for adiabatic cooling humidifier efficiency . 56
B.2.7 Default values for cooling and heating coil calculation . 56
B.2.8 Air handling unit related default values . 56
B.2.9 Fan related default values . 57
B.2.10 Specific pump energy for humidification . 57
B.3 System design data . 58
B.3.1 Qualitative process design data choices . 58
B.3.2 Default fan motor heat recovery factors . 58
B.3.3 Default quantitative process design data choices . 58
B.3.4 Limit values for the defrost control . 58
B.3.5 Default process control options . 59
B.3.6 Default heat recovery control options . 59
Annex C (informative) Calculation method for ground preheating and -cooling . 60
C.1 Calculation . 60
C.1.1 Temperature difference . 60
C.1.2 Moisture difference . 61
C.1.3 Pressure losses of the heat exchanger . 62
C.2 Data . 62
Bibliography . 63
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Foreword
This document (prEN 16798-5-1:2015) has been prepared by Technical Committee CEN/TC 156 “Ventilation
for buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document, along with prEN 16798-5-2:2014, will supersede EN 15241:2007.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
EN 16798 currently comprises the following parts:
— prEN 16798-3, Energy performance of buildings — Part 3: Ventilation for non-residential buildings —
Performance requirements for ventilation and room-conditioning systems;
— prEN 16798-5-1, Energy performance of buildings — Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 —
Ventilation for buildings — Calculation methods for energy requirements of ventilation and air conditioning
systems — Part 5-1: Distribution and generation (revision of EN 15241) — method 1 [the present
document];
— prEN 16798-5-2, Energy performance of buildings — Modules M5-6, M5-8 — Ventilation for buildings —
Calculation methods for energy requirements of ventilation systems — Part 5-2: Distribution and
generation (revision of EN 15241) — method 2;
— prEN 16798-7, Energy performance of buildings — Part 7: Ventilation for buildings — Modules M5-1, M5-
5, M5-6, M5-8 — Calculation methods for the determination of air flow rates in buildings including
infiltration;
— prEN 16798-9, Energy performance of buildings — Part 9: Ventilation for buildings — Module M4-1 —
Calculation methods for energy requirements of cooling systems — General;
— prEN 16798-11, Energy performance of buildings — Module M4-3 — Calculation of the design cooling
load;
— prEN 16798-13, Energy performance of buildings — Part 13: Module M4-8 — Calculation of cooling
systems - Generation;
— prEN 16798-15, Energy performance of buildings — Part 15: Module M4-7 — Calculation of cooling
systems — Storage — General;
— prEN 16798-17, Energy performance of buildings — Part 17: Ventilation for buildings — Module M4-11,
M5-11, M6-11, M7-11 — Guidelines for inspection of ventilation and air conditioning systems;
— prEN 16798-11, Energy performance of buildings — Module M4-3 — Calculation of the design cooling
load.
This standard replaces EN 15241, which was developed during the first EPBD mandate and was published in
2007.
The revision for inclusion in the second mandate package was performed by CEN/TC 156/WG 21.
The revision includes changes:
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— for a rearrangement of content versus EN 15242:2007, in order to better fit in the modular structure given
in prEN 15603:2013;
— to cover full air conditioning systems (including heating, cooling humidification, dehumidification; definition
see EN 13779, module M5-1);
— for an improved fan energy calculation, taking into consideration control strategies according to
CEN/TC 247 and fan product standards /data;
— for an improved calculation of different types of heat recovery devices (air-to-air HX, rotary and pumped
circuit), delivering the efficiency and auxiliary energy depending on control, including moisture transfer;
— for the consideration of recirculation, including control;
— for an improved humidification calculation for different humidifier types, including auxiliary energy;
— for the calculation of adiabatic cooling;
— the formatting according to the new rules set in CEN/TS 16629;
— the consideration of ISO/TC 205 work performed in the meantime.
Due to the fact that the scope is not identical, a separate document prEN 16798-5-2 was prepared for a
second method B, covering compact ventilation systems including heat / DHW generation with a monthly /
seasonal calculation method.
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Introduction
This draft Standard is part of a series of standards aiming at international harmonization of the methodology
for the assessment of the energy performance of buildings, called “EPB set of standards”.
As part of the “EPB set of standards” it complies with the requirements for the set of basic EPB documents
(EN 15603 (see Clause 2), CEN/TS 16628 and CEN/TS 16629 (see Bibliography [2] and [3])) developed
under a mandate given to CEN by the European Commission and the European Free Trade Association
(Mandate M/480, [4]), and supports essential requirements of EU Directive 2010/31/EU on the energy
performance of buildings (EPBD).
Where appropriate, the method(s) in each of the EPB standards may provide simplified procedures and/or
default values as alternative options.
— Without further specification, these simplified procedures and/or default values may be used without
restricting criteria.
NOTE For instance because these are conservative procedures or values.
The term 'default values' should not be confused with 'informative values'. If the values are given in the
normative part of the standard, they are normative values. See also next options.
— In other cases, these simplified procedures and/or default values may be intended to be used only for
situations where there is limited information. This may be the case in existing buildings with limited
possibilities to acquire all input data. In particular when the EPB set of standards is used in the context of
national or regional building regulations, specific criteria when the simplified method and/or default data
are allowed, may be given at national or regional level, following the template in Annex A. Annex B
provides (informative) default choices.
CEN/TC 156 deals with ventilation and air conditioning systems in buildings. Subjects covered by
CEN/TC 156 are:
1) energy performance calculation for ventilation, air conditioning and cooling systems;
2) inspection of ventilation and air conditioning systems;
3) installation and commissioning of ventilation and air conditioning systems.
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1 Scope
Table 1 shows the relative position of this standard within the EN EPB set of standards.
Table 1 — Position of this standard within the EN EPB set of standards
Building
Overarching Technical Building Systems
(as such)
sub1 M1 sub1 M2 sub1 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General 1 General 1 General
Common
terms and
definitions; Building
2 2 2
Needs
symbols, Energy Needs
units and
subscripts
(Free) Indoor
Maximum
Conditions
3 3 3
Applications Load and
without
Power
Systems
Ways to
Ways to Ways to
Express
Express Express
4 4 4 Energy
Energy Energy
Performanc
Performance Performance
e
Building
Heat Transfer
Functions Emission
5 5 by 5
and Building and control
Transmission
Boundaries
Building
Heat Transfer
Occupancy
by Infiltration Distribution
6 and 6 6
and and control
Operating
Ventilation
Conditions
Aggregation
of Energy
Internal Heat Storage
7 Services and 7 7
Gains and control
Energy
Carriers
Building Solar Heat Generation
8 8 8
Partitioning Gains and control
Load
Building
Calculated dispatching
Dynamics
9 Energy 9 9 and
(thermal
Performance operating
mass)
conditions
Measured Measured
Measured
10 Energy 10 Energy 10
Energy
Performance Performance
Performanc
7
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidifi
cation
Dehumidification
Domestic Hot
water
Lighting
Building
automation and
control
PV, wind, .
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Building
Overarching Technical Building Systems
(as such)
sub1 M1 sub1 M2 sub1 M3 M4 M5 M6 M7 M8 M9 M10 M11
e
11 Inspection 11 Inspection 11 Inspection
Ways to
Express
12 12 BMS
Indoor
Comfort
External
13 Environment
Conditions
Economic
14
Calculation
This draft standard covers energy performance calculation of mechanical ventilation and air conditioning
systems. It takes into account the generation (air handling unit) and distribution (duct system) parts. It does
not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which
is covered in prEN 16798-7 (revised EN 15242). A calculation method for compact ventilation systems with
integrated heating/cooling generation, using a monthly or seasonal calculation time step, is provided in a
separate standard prEN 16798-5-2.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 1507, Ventilation for buildings — Sheet metal air ducts with rectangular section — Requirements for
strength and leakage
EN 1886, Ventilation for buildings — Air handling units — Mechanical performance
EN 12237, Ventilation for buildings — Ductwork — Strength and leakage of circular sheet metal ducts
EN 12792:2003, Ventilation for buildings — Symbols, units and terminology
EN 13053, Ventilation for buildings — Air handling units — Rating and performance for units, components and
sections
EN 14239 Ventilation for buildings — Ductwork — Measurement of ductwork surface area
prEN 15603:2013, Energy performance of buildings — Overarching standard EPB
prEN 16798-3:2014, Energy performance of buildings — Part 3: Ventilation for non-residential buildings —
Performance requirements for ventilation and room-conditioning systems
8
Descriptions
Descriptions
Descriptions
Heating
Cooling
Ventilation
Humidifi
cation
Dehumidification
Domestic Hot
water
Lighting
Building
automation and
control
PV, wind, .
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EN ISO 5801, Industrial fans — Performance testing using standardized airways (ISO 5801)
EN ISO 7345:1995, Thermal insulation — Physical quantities and definitions (ISO 7345:1987)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 7345:1995, prEN 15603:2013,
EN 12792:2003 and prEN 16798-3:2014, and the following apply.
3.1.1
duct heat losses
heat losses (by leakage and heat transfer) of the ductwork
3.1.2
duct leakage volume flow extracted from a ventilation zone i
leakage air to the extract air ducts extracted from a ventilation zone
3.1.3
duct leakage volume flow going to a ventilation zone i
the leakage air from the supply air ducts going to a ventilation zone
3.1.4
extract volume flow from a ventilation zone i
extract air flow rate extracted from a ventilation zone
3.1.5
heat losses of the AHU
heat losses (by leakage and heat transfer) of the air handling unit
3.1.6
heat transferred by ground preheating/cooling
heat transferred to the outside air by ground preheating and cooling
3.1.7
heat transferred by recirculation
heat transferred to the outside air by recirculation of extract air
3.1.8
heat transferred by heat recovery
heat transferred to the outside air by heat recovery from extract air
3.1.9
humidification auxiliary energy
auxiliary energy needed for humidification (for pumps etc.)
3.1.10
humidification generation input
energy of carrier cr required by the humidifier (for steam humidifiers)
3.1.11
recoverable AHU heat Losses
heat losses (by leakage and heat transfer) of the air handling unit, recoverable for heating and cooling
(negative values)
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3.1.12
recoverable duct heat losses
heat losses (by leakage and heat transfer) of the ductwork, recoverable for heating and cooling (negative
values)
3.1.13
required AHU cooling coil output
heat required to be extracted from air handling unit for cooling and dehumidification of the supply air to the
setpoints
3.1.14
required AHU heating coil input
heat required to be supplied to the air handling unit for heating the supply air to the setpoint
3.1.15
required cooling coil water inlet temperature
cooling coil water inlet temperature required for cooling and dehumidification of the supply air to the setpoints
3.1.16
required heating coil water inlet temperature
heating coil water inlet temperature required to heat the supply air to the setpoint
3.1.17
required supply air moisture content
moisture content of the supply air leaving the air distribution the supply air to the setpoints
3.1.18
supply outside air fraction
fraction of outside air in the supply air
3.1.19
supply volume flow rate going to ventilation zone i
supply air flow rate going to a ventilation zone
3.1.20
ventilation auxiliary energy
auxiliary energy for the service of ventilation (for heat recovery drives, electrical preheating and for control)
4 Symbols and abbreviations
4.1 Symbols
For the purposes of this Standard, the symbols given in prEN 15603:2013, EN 12792:2003 and the specific
symbols listed in Table 2 apply.
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Table 2 — Symbols and units
Symbol Name of quantity Unit
e Exponent -
−1
n Rotation number min
7
R Flow resistance kg / m
r Evaporation heat of the water kWh/kg
v Velocity m/s
x Moisture content kg / kg dry air
ε Heat recovery efficiency -
4.2 Subscripts
For the purposes of this draft European Standard, the subscripts given in prEN 15603:2013, and the specific
subscripts listed in Table 3 apply.
Table 3 —Subscripts
EHA Exhaust air Coil Coil nom nominal
ETA Extract air Cnd Conditioned req required
IDA Indoor air Ctrl Control rot Rotation
ODA Outdoor air Des Design st1.stn Stage 1 to stage n
RCA Recirculation air Du Duct sur surrounding
SUP Supply air hr heat recovery xr humidity recovery
a Air lea Leakage zt Thermal zone
ahu Air handling unit nc non-conditioned zv Ventilation zone
5 Description of the method — Output of the method
The method covers the calculation of:
— the volume flow rates provided to the ventilation zones served by the system, based on the required
values;
— the supply air temperature and moisture content, based o
...
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