EN 13363-2:2005
(Main)Solar protection devices combined with glazing - Calculation of total solar energy transmittance and light transmittance - Part 2: Detailed calculation method
Solar protection devices combined with glazing - Calculation of total solar energy transmittance and light transmittance - Part 2: Detailed calculation method
This document specifies a detailed method, based on the spectral transmission data of the materials, comprising the solar protection devices and the glazing, to determine the total solar energy transmittance and other relevant solar-optical data of the combination. If spectral data are not available the methodology can be adapted to use in-tegrated data.
The method is valid for all types of solar protection devices parallel to the glazing such as louvres, or venetian, or roller blinds. The blind may be located internally, externally, or enclosed between the panes of the glazing. Ventilation of the blind is allowed for in each of these positions in determining the solar energy absorbed by the glazing or blind components, for vertical orientation of the glazing.
The blind component materials may be transparent, translucent or opaque, combined with glazing components with known solar transmittance and reflectance and with known emissivity for thermal radiation.
The method is based on a normal incidence of radiation and does not take into account an angular dependence of transmittance or reflectance of the materials. Diffuse irradiation or radiation diffused by solar protection devices is treated as if it were direct. Louvres or venetian blinds are treated as homogenous materials by equivalent solar optical characteristics, which may depend on the angle of the incidence radiation. For situations outside the scope of this document; ISO 15099 covers a wider range of situations.
The document also gives certain normalised situations, additional assumptions and necessary boundary conditions.
Sonnenschutzeinrichtungen in Kombination mit Verglasungen - Berechnung der Solarstrahlung und des Lichttransmissionsgrades - Teil 2: Detailliertes Berechnungsverfahren
Dieses Dokument legt ein detailliertes, auf den spektralen Transmissionsdaten der Materialien von Sonnenschutzvorrichtungen und Verglasungen beruhendes Verfahren fest, mit dessen Hilfe der Gesamtenergiedurchlassgrad und andere relevante solar-optische Kenngrößen der Kombination zu ermitteln sind. Stehen keine Spektraldaten zur Verfügung, so lässt sich das Verfahren so anpassen, dass integrierte Daten verwendet werden können.
Das Verfahren gilt für alle Arten von parallel zur Verglasung angeordneten Sonnenschutzvorrichtungen, wie Lamellensysteme, Jalousien und Rollladen. Die Sonnenschutzvorrichtung kann sich innen, außen oder bei einer Doppelverglasung zwischen den Einzelscheiben befinden. In jeder dieser Positionen ist eine Belüftung der zwischen Sonnenschutzvorrichtung und Verglasung für die Bestimmung der von der Verglasung oder vom Sonnenschutz absorbierten Solarenergie bei vertikaler Ausrichtung der Verglasung zulässig.
Die Materialien des Sonnenschutzes können durchsichtig, durchscheinend oder opak sein und mit Verglasungen kombiniert werden, deren Transmissions- und Reflexionsgrade für Solarstrahlung und Emissionsgrade für Wärmestrahlung bekannt sind.
Das Verfahren beruht auf einem üblichen Einfall der Strahlung und berücksichtigt keine winkelmäßige Abhängigkeit der Transmission und Reflexion der Materialien. Eine diffuse Einstrahlung oder eine Strahlung, die durch Sonnenschutzvorrichtungen zerstreut wird, wird als direkte Strahlung angesehen. Lamellensysteme und Jalousien werden als homogene Materialien mit äquivalenten solar-optischen Eigenschaften behandelt, die vom Winkel der Einfallsstrahlung abhängig sein können. Für Situationen außerhalb des Anwendungsbereichs dieses Dokuments berücksichtigt ISO 15099 einen breiteren Bereich von Situationen.
Dieses Dokument enthält außerdem Beschreibungen bestimmter Standardsituationen, zusätzliche Annahmen und notwendige Randbedingungen.
Dispositifs de protection solaire combinés à des vitrages - Calcul du facteur de transmission solaire et lumineuse - Partie 2: Méthode de calcul détaillée
Le présent document spécifie une méthode détaillée, basée sur les données spectrales de transmission des matériaux constitutifs des dispositifs de protection solaire et des vitrages, pour déterminer le facteur de transmission totale de l'énergie solaire et les autres données optiques solaires appropriées de l'ensemble. Si Ies données spectrales ne sont pas disponibles, la méthodologie peut être adaptée à l'utilisation de données intégrées.
La méthode s'applique à tous les types de protection solaire parallèles au vitrage, tels les stores à claire-voie, les jalousies ou les volets roulants. Le dispositif peut être placé à l'intérieur, à l'extérieur, ou entre deux vitres. Pour chacune de ces positions, la ventilation du dispositif de protection solaire est prise en compte dans la détermination de l'énergie solaire absorbée par les composants du vitrage ou du dispositif, pour les vitrages disposés verticalement.
Les matériaux des composants du dispositif peuvent être transparents, translucides ou opaques, et sont associés à des composants de vitrages dont les facteurs de transmission et de réflexion solaires ainsi que l'émissivité pour le rayonnement thermique sont connus.
La méthode suppose une incidence normale du rayonnement et ne prend pas en compte l'influence de l'angle d'incidence sur les facteurs de transmission ou de réflexion des matériaux. Le rayonnement diffus ou celui diffusé par les dispositifs de protection solaire est assimilé à un rayonnement direct. Les stores à claire-voie et les jalousies sont assimilés à des matériaux homogènes grâce à des caractéristiques optiques solaires équivalentes, pouvant dépendre de l'angle d'incidence du rayonnement. Pour les situations n'entrant pas dans le domaine d'application du présent document, l'ISO 15099 couvre une gamme de situations plus étendue.
Ce document donne également un certain nombre de situations normalisées, des hypothèses complémentaires et les conditions aux limites requises.
Senčila v kombinaciji z zasteklitvijo - Izračun prepustnosti za energijo sončnega sevanja in prepustnosti svetlobe - 2. del: Podrobna računska metoda
General Information
- Status
- Withdrawn
- Publication Date
- 05-Apr-2005
- Withdrawal Date
- 13-Apr-2025
- Technical Committee
- CEN/TC 89 - Thermal performance of buildings and building components
- Drafting Committee
- CEN/TC 89/WG 7 - Thermal properties of doors and windows
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 19-Jul-2017
- Completion Date
- 14-Apr-2025
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 18-Apr-2012
- Effective Date
- 08-Jun-2022
Frequently Asked Questions
EN 13363-2:2005 is a standard published by the European Committee for Standardization (CEN). Its full title is "Solar protection devices combined with glazing - Calculation of total solar energy transmittance and light transmittance - Part 2: Detailed calculation method". This standard covers: This document specifies a detailed method, based on the spectral transmission data of the materials, comprising the solar protection devices and the glazing, to determine the total solar energy transmittance and other relevant solar-optical data of the combination. If spectral data are not available the methodology can be adapted to use in-tegrated data. The method is valid for all types of solar protection devices parallel to the glazing such as louvres, or venetian, or roller blinds. The blind may be located internally, externally, or enclosed between the panes of the glazing. Ventilation of the blind is allowed for in each of these positions in determining the solar energy absorbed by the glazing or blind components, for vertical orientation of the glazing. The blind component materials may be transparent, translucent or opaque, combined with glazing components with known solar transmittance and reflectance and with known emissivity for thermal radiation. The method is based on a normal incidence of radiation and does not take into account an angular dependence of transmittance or reflectance of the materials. Diffuse irradiation or radiation diffused by solar protection devices is treated as if it were direct. Louvres or venetian blinds are treated as homogenous materials by equivalent solar optical characteristics, which may depend on the angle of the incidence radiation. For situations outside the scope of this document; ISO 15099 covers a wider range of situations. The document also gives certain normalised situations, additional assumptions and necessary boundary conditions.
This document specifies a detailed method, based on the spectral transmission data of the materials, comprising the solar protection devices and the glazing, to determine the total solar energy transmittance and other relevant solar-optical data of the combination. If spectral data are not available the methodology can be adapted to use in-tegrated data. The method is valid for all types of solar protection devices parallel to the glazing such as louvres, or venetian, or roller blinds. The blind may be located internally, externally, or enclosed between the panes of the glazing. Ventilation of the blind is allowed for in each of these positions in determining the solar energy absorbed by the glazing or blind components, for vertical orientation of the glazing. The blind component materials may be transparent, translucent or opaque, combined with glazing components with known solar transmittance and reflectance and with known emissivity for thermal radiation. The method is based on a normal incidence of radiation and does not take into account an angular dependence of transmittance or reflectance of the materials. Diffuse irradiation or radiation diffused by solar protection devices is treated as if it were direct. Louvres or venetian blinds are treated as homogenous materials by equivalent solar optical characteristics, which may depend on the angle of the incidence radiation. For situations outside the scope of this document; ISO 15099 covers a wider range of situations. The document also gives certain normalised situations, additional assumptions and necessary boundary conditions.
EN 13363-2:2005 is classified under the following ICS (International Classification for Standards) categories: 17.180.20 - Colours and measurement of light; 91.120.10 - Thermal insulation of buildings. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13363-2:2005 has the following relationships with other standards: It is inter standard links to EN ISO 52022-3:2017, EN 13363-2:2005/AC:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 13363-2:2005 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 13363-2:2005 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.GDSonnenschutzeinrichtungen in Kombination mit Verglasungen - Berechnung der Solarstrahlung und des Lichttransmissionsgrades - Teil 2: Detailliertes BerechnungsverfahrenDispositifs de protection solaire combinés a des vitrages - Calcul du facteur de transmission solaire et lumineuse -
Partie 2: Méthode de calcul détailléeSolar protection devices combined with glazing - Calculation of total solar energy transmittance and light transmittance - Part 2: Detailed calculation method91.120.10Toplotna izolacija stavbThermal insulation17.180.20Barve in merjenje svetlobeColours and measurement of lightICS:Ta slovenski standard je istoveten z:EN 13363-2:2005SIST EN 13363-2:2005en01-julij-2005SIST EN 13363-2:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13363-2April 2005ICS 17.180.20; 91.120.10English versionSolar protection devices combined with glazing - Calculation oftotal solar energy transmittance and light transmittance - Part 2:Detailed calculation methodDispositifs de protection solaire combinés à des vitrages -Calcul du facteur de transmission solaire et lumineuse - Partie 2: Méthode de calcul détailléeSonnenschutzeinrichtungen in Kombination mitVerglasungen - Berechnung der Solarstrahlung und desLichttransmissionsgrades - Teil 2: DetailliertesBerechnungsverfahrenThis European Standard was approved by CEN on 24 February 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13363-2:2005: ESIST EN 13363-2:2005
Determination of equivalent solar and light optical characteristics for louvres or venetian blinds.16 A.1 Assumptions.16 A.2 Symbols.16 A.3 Direct radiation.17 A.4 Diffuse radiation.17 A.5 Thermal radiation.17 A.6 Global radiation.17 A.7 Example.18 Annex B (normative)
Stack effect.19 B.1 General.19 B.2 Pressure loss factors.20 Annex C (informative)
Example.22 C.1 Input data.22 C.2 Results.22 Annex D (informative)
Physical properties of gases.23 Bibliography.24
3 µm to 100 µm NOTE 1 The definition deviates from EN ISO 9288. NOTE 2 Sometimes called longwave radiation, see EN ISO 9488. 3.1.3 total solar energy transmittance total transmitted fraction of the incident solar radiation consisting of direct transmitted solar radiation and the part of the absorbed solar radiation transferred by convection and thermal radiation to the internal environment 3.1.4 light transmittance transmitted fraction of the incident solar radiation in the visible part of the solar spectrum, see EN 410 3.1.5 normalized radiant flow rate radiant flow rate divided by the incident radiant flow rate 3.2 Symbols and units The following list includes the principal symbols used. Other symbols are defined where they are used in the text. Symbol Physical quantity Unit ES incident solar radiation flow rate, solar irradiation W/m² I normalised radiant flow rate − H height of a ventilated space m T thermodynamic temperature K U thermal transmittance
W/(m²⋅K) g total solar energy transmittance (solar factor) − h heat transfer coefficient, or thermal conductance of gas space W/(m²⋅K) q density of heat flow rate W/m² s width of a space m z vertical coordinate m ε thermal emissivity − α absorptance − αe solar direct absorptance − λ thermal conductivity W/(m⋅K) λ wavelength µm ρ reflectance of the side facing the incident radiation − ρ' reflectance of the side facing away from the incident radiation − ρe solar direct reflectance − ρv light reflectance − σ Stefan-Boltzmann constant 5,67×10-8 W/(m²⋅K4) τe solar direct transmittance − SIST EN 13363-2:2005
Subscripts a absorbed c conductive/convective d diffuse e external environment g gas i internal environment j, k integer, number of layer or space r radiant th thermal radiation v ventilated B blind D direct 4 Characteristic data 4.1 Solid layers The glass panes and blinds are considered as solid layers. The relevant characteristics are: • for solar radiation and light: the spectral transmittance and the spectral reflectances of both sides; • for thermal radiation: the transmittance and the emissivities of both sides. Usually, these values are determined directly by the most appropriate optical method1). For glazing, see the procedures recommended for glazing materials in EN 410. However, for louvres or venetian blinds, Annex A gives a method to calculate equivalent values based on similarly determined material properties. 4.2 Gas spaces The thermal properties of closed spaces filled with air or gas shall be calculated in accordance with EN 673. The spaces are described by their width and the physical properties of the gas (see Annex D, Table D.1). Ventilated air spaces are described by the width and the height of the space and the physical properties of the air. 5 Principles of calculation 5.1 General The combination of glazing and solar protection devices consists of a series of solid layers separated by air or gas filled spaces. The solid layers are assumed to be homogeneous with a negligible thermal resistance. The transport of solar radiation and heat is considered to be one-dimensional, except for ventilated spaces, where the two-dimensional convection is reduced to a one-dimensional formula.
1) See CIE Technical Report – CIE 130-1998 "Practical Methods for the measurement of reflectance and transmittance". SIST EN 13363-2:2005
Key Te external air temperature
1 external 7 internal Tre external radiant temperature
2 layer 1 8 solar radiation ve external wind velocity
3 space 1 9 direct solar and light transmittance Ti internal air temperature
4 layer j 10 direct solar and light reflectance Tri internal radiant temperature 5 space j 11 thermal radiation and convection
6 layer n
(direct and indirect)
NOTE The internal and external environments are characterised by the air temperature and the radiant temperature; the external environment is additionally characterised by the wind velocity. Figure 1 — Schematic presentation of a system consisting of layers and spaces 5.2 Solar radiation and light The solar and optical properties are independent of the intensity of the solar irradiation and temperature in the system2). It is assumed that the spaces are completely transparent, without any absorption. Each solid layer is characterised by the spectral transmittance and reflectance in the wavelength region between 0,3 µm and 2,5 µm. For each wavelength λ and each layer j the following equations are valid for the normalised radiant flow rates I and I' (see Figure 2): )()()()()()()()()()(111λλτλλρλλλρλλτλjjjjjjjjjjIIIIII′⋅′+⋅=′′⋅′+⋅=−−− (1) where
2) There are exceptions for certain materials (photochromic, thermochromic). SIST EN 13363-2:2005
is the spectral normalised radiant flow rate inwards; I'j(λ) is the spectral normalised radiant flow rate outwards.
Figure 2 — Schematic presentation of the characteristic data of layer j and the spectral flow rates
Equation (1) is solved with the boundary conditions: 0)(;1)(0=′=λλnII (2)
If the spectral normalised radiant flow rates )(λjI and )(λjI′ are known for each j, the spectral data of the system result in: the spectral transmittance: )()(λλτnI= (3) the spectral reflectance of the side facing the incident radiation: )()(0λλρI′= (4) the spectral absorptance of layer j: ()())()()(1)()()(1)(1λλτλρλλτλρλαjjjjjjjII′⋅′−′−+⋅−−=− (5) The solar direct transmittance eτ, the solar direct reflectance eρ and the solar direct absorptance je,α of each layer j shall be calculated from the spectral data according to the procedure given in EN 410. Similarly, the light transmittance vτ and the light reflectance vρ can be calculated. If the spectral reflectance)('λρof the sy
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표준 EN 13363-2:2005는 유리와 결합된 태양 보호 장치의 총 태양 에너지 투과율 및 광 투과율을 계산하기 위한 상세한 방법을 규명하는 문서입니다. 이 문서는 태양 보호 장치와 유리의 재료에 대한 스펙트럼 전송 데이터를 기반으로 하여, 결합된 형태의 태양 광학적 데이터를 결정하는 방법을 제시합니다. 스펙트럼 데이터가 없는 경우에는 통합 데이터로 조정하여 사용할 수 있습니다. 이 표준의 강점 중 하나는 유리와 평행하게 배치될 수 있는 모든 유형의 태양 보호 장치에 적용이 가능하다는 점입니다. 예를 들어, 루버, 베네치안 블라인드 또는 롤러 블라인드 등 다양한 유형의 블라인드가 포함됩니다. 블라인드는 내부, 외부, 또는 유리 사이에 설치될 수 있으며, 각 위치에서 유리나 블라인드 구성 요소가 흡수하는 태양 에너지를 결정하는 데 필요한 환기를 용인합니다. 또한, 블라인드 구성 재료는 투명, 반투명 또는 불투명할 수 있으며, 태양 투과율과 반사율이 알려진 유리 구성 요소와 결합하여 사용됩니다. 이 방법은 방사선의 정상 입사에 기초하고 있으며, 재료의 투과율이나 반사율의 각도 의존성은 고려하지 않습니다. 확산 방사선이나 태양 보호 장치에 의해 확산된 방사선은 직선 방사선으로 취급되며, 루버나 베네치안 블라인드는 동등한 태양 광학적 특성으로 이질적 재료로 간주됩니다. ISO 15099가 이 문서의 적용 범위를 넘어서는 더 넓은 상황을 다루기 때문에, 특정한 정상화된 상황에 대한 추가적인 가정과 필요한 경계 조건도 이 문서에서 제공합니다. EN 13363-2는 태양 보호 장치 설계와 평가에 있어 매우 실용적이고 신뢰할 수 있는 기준을 제시하며, 관련 업계에서 태양 에너지 관리 및 효율 향상에 기여하는 중요한 문서로 자리잡고 있습니다.
The standard EN 13363-2:2005 provides a comprehensive framework for assessing the solar energy transmittance and light transmittance of solar protection devices combined with glazing. Its detailed calculation method is particularly noteworthy, as it utilizes spectral transmission data from both the solar protection devices and the glazing, making it applicable across a variety of materials and configurations. One of the key strengths of this standard is its broad applicability to different types of solar protection devices, including louvres, venetian blinds, and roller blinds, regardless of their positioning-either internally, externally, or between glazing panes. This flexibility ensures that designers and engineers can accurately evaluate the performance of various solar protection solutions in diverse architectural contexts. Moreover, the inclusion of ventilation in the calculation method provides a more realistic assessment of the performance of these devices, effectively considering the impact of airflow on solar energy absorption. Another significant aspect of EN 13363-2:2005 is its adaptability. In instances where spectral data is unavailable, the standard allows for the use of integrated data, thereby enhancing usability for practitioners who may not have access to comprehensive material specifications. This feature broadens the standard’s relevance, facilitating its use in practical applications that require reliable energy calculations. However, it is crucial to note that the method is grounded on the assumption of normal incidence of radiation and does not factor in the angular dependence of transmittance or reflectance. This limitation may affect accuracy in scenarios where the angle of incidence varies significantly. Although the standard simplifies the analysis by treating louvres and venetian blinds as homogenous materials, this could also overlook specific performance characteristics dictated by their structural complexity. For more complex situations beyond the provisions of this document, stakeholders are directed to ISO 15099 for a broader range of considerations. Overall, EN 13363-2:2005 stands out as a vital standard for professionals in the field of solar protection and glazing systems. Its thorough methodology for calculating the total solar energy transmittance and light transmittance, coupled with its strategic adaptability, underscores its importance in advancing building energy efficiency and optimizing solar protection performance.
SIST EN 13363-2:2005は、太陽光保護装置とガラスとの組み合わせに関する計算手法を詳細に規定しています。この標準は、材料のスペクトル透過データに基づいて、総太陽エネルギー透過率やその他の重要な太陽光学データを算出する方法を明示しています。このような詳細な計算方法は、設計者やエンジニアにとって非常に重要であり、特にガラスやシャッターの組み合わせにおける太陽エネルギーの管理において巧妙なアプローチを提供します。 標準の強みは、その適用範囲の広さにあります。様々なタイプの太陽光保護装置、例えばルーバーやバルコニーシェード、ローラーシャッターなどがガラスに並行して配置される場合に対応可能です。また、ブラインドの設置位置が内部、外部、またはガラスの間に囲まれている場合でも、各ケースにおいて太陽エネルギーの吸収に対する適切な評価がなされるため、実用性が高いと言えます。 さらに、ブラインドの材料が透明、半透明、または不透明であっても、太陽伝達率や反射率が知られているガラス成分と組み合わされた場合の評価が可能であり、これにより多様な建材に対応する柔軟性が生まれます。 この標準は通常の入射角での放射線を前提としており、材料の透過率や反射率の角度依存性には考慮しない点が明記されています。そのため、異なる条件下での応用を考慮する場合は、ISO 15099を参考にすることが推奨されています。 総じて、この文書は、太陽光の管理を効率的に行うための科学的かつ実用的な手段を提供しており、建設業界における持続可能なエネルギー利用を促進する上で、その重要性は非常に高いといえます。また、標準化された状況と必要な境界条件が示されていることで、ユーザーは信頼性の高いデータに基づいた評価を行うことができます。
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