EN 12977-4:2018

Thermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977-1.
Stores tested according to this document are commonly used in solar combisystems. However, the thermal performance of all other thermal stores with water as a storage medium (e.g. for heat pump systems) can be also assessed according to the test methods specified in this document.
This document applies to combistores with a nominal volume up to 3 000 l and without integrated burner.
NOTE   This document is extensively based on references to EN 12977-3:2012.

Thermische Solaranlagen und ihre Bauteile - Kundenspezifisch gefertigte Anlagen - Teil 4: Leistungsprüfung von Warmwasserspeichern für Solaranlagen zur Trinkwassererwärmung und Raumheizung (Kombispeicher)

Diese Europäische Norm legt Prüfverfahren für die Beschreibung der Leistung von Speichern fest, die zur Verwendung in kleinen kundenspezifisch gefertigten Solaranlagen nach EN 12977-1:2018 bestimmt sind.
Die nach diesem Dokument geprüften Speicher werden häufig in solaren Kombianlagen eingesetzt. Jedoch kann auch die thermische Leistung aller anderen Wärmespeicher, bei denen Wasser als Speichermedium zum Einsatz kommt (z. B. Wärmepumpenanlagen), nach den in diesem Dokument festgelegten Prüfverfahren bewertet werden.
Dieses Dokument gilt für Kombispeicher mit einem Nennvolumen von bis zu 3 000 l und ohne integrierten Brenner.
ANMERKUNG Das vorliegende Dokument nimmt umfassend Bezug auf EN 12977-3:2018.

Installations solaires thermiques et leurs composants - Installations assemblées à façon - Partie 4 : Méthodes d'essai des performances pour chauffe-eau solaires et installations solaires combinées

La présente Norme européenne spécifie des méthodes d’essai pour la caractérisation des performances des dispositifs de stockage destinés à être utilisés dans de petites installations assemblées à façon, comme indiqué dans l’EN 12977-1:2018.
Les dispositifs de stockage soumis à essai conformément au présent document sont couramment utilisés dans les installations solaires combinées. Cependant, la performance thermique de tous les autres dispositifs de stockage thermiques utilisant de l’eau comme support de stockage (par exemple pour des installations de pompe à chaleur) peut également être évaluée conformément aux méthodes d’essai spécifiées dans le présent document.
Le présent document s’applique aux dispositifs de stockage combinés ayant un volume nominal jusqu’à 3000 litres et sans brûleur intégré.
NOTE Le présent document est principalement basé sur les références de l’EN 12977-3:2018.

Toplotni sončni sistemi in sestavni deli - Neserijsko izdelani sistemi - 4. del: Preskusne metode delovanja sončnih zbiralnikov

Ta evropski standard določa preskusne metode za delovanje hranilnikov, ki so namenjeni za uporabo v majhnih neserijsko izdelanih sistemih v skladu s standardom EN 12977-1.
Hranilniki, ki se preskušajo v skladu s tem dokumentom, se običajno uporabljajo v sončnih kombiniranih sistemih. Vendar se lahko na podlagi preskusnih metod iz tega dokumenta oceni tudi toplotna učinkovitost vseh drugih hranilnikov toplote, ki kot sredstvo shranjevanja uporabljajo vodo (npr. za sisteme toplotnih črpalk).
Ta dokument se uporablja za kombinirane hranilnike z nazivno prostornino do 3000 l in brez vgrajenega gorilnika.
OPOMBA:   Ta dokument v veliki meri temelji na sklicih na standard EN 12977-3:2012.

General Information

• Status: Published
• Publication Date: 10-Apr-2018
• Withdrawal Date: 30-Oct-2018
• ICS: 27.160 - Solar energy engineering
• ICS: 91.140.10 - Central heating systems
• ICS: 91.140.65 - Water heating equipment
• Technical Committee: CEN/TC 312 - Thermal solar systems and components
• Drafting Committee: CEN/TC 312/WG 3 - Thermal solar systems and components; Custom built systems
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 24-Oct-2024
• Completion Date: 14-Apr-2025
• Directive: 811/2013 - Commission Delegated Regulation (EU) No 811/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of space heaters, combination heaters, packages of space heater, temperature control and solar device and packages of combination heater, temperature control and solar device
• Directive: 812/2013 - Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device
• Directive: 813/2013 - Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for space heaters and combination heaters
• Directive: 814/2013 - Commission Regulation (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks
• Mandate: M/495 - Standardisation mandate to CEN, CENELEC and ETSI under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign
• Mandate: M/534 - [C(2015)2625] Standardisation request to the European standardisation organisations pursuant to Article 10(1) of Regulation (EU) No 1025/2012 of the European Parliament and of the Council in support of implementation of Commission Regulation (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks and Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device
• Mandate: M/535 - [C(2016)2626) Standardisation request to the European standardisation organisations to draft harmonised European standards pursuant to Article 10(1) of Regulation (EU) No 1025/2012 of the European Parliament and of the Council in support of implementation of Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to eco-design requirements for space heaters and combination heaters and Commission Delegated Regulation (EU) No 811/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of space heaters, combination heaters, packages of space heaters, temperature control and solar device and packages of combination heater, temperature control and solar device
• Ref Project: SIST EN 12977-4:2018 - Thermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores

Relations

• Replaces: EN 12977-4:2012 - Thermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores
• Effective Date: 08-Jun-2022

Overview

EN 12977-4:2018 - "Thermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores" is a CEN standard that defines laboratory test methods to characterise the thermal performance of water stores used in small custom-built solar combisystems. The standard applies to combistores (hot water stores) with a nominal volume up to 3 000 L and without an integrated burner. It is intended to produce parameters required for detailed computer simulation of stores within solar DHW (domestic hot water) and space‑heating systems.

Key topics

• Store classification: Five groups based on charge/discharge modes (direct/indirect) to select appropriate test configurations.
• Laboratory testing requirements:
  • Test‑stand configuration and hydraulic loops defined according to store classification.
  • Measurement procedures and data requirements referenced to EN 12977-3:2018.
  • Sensor installation rules, e.g. inlet/outlet temperature sensors placed at least 200 mm from store connections; pipe insulation per EN 12828.
• Performance parameters to be determined for simulation:
  • Store height, effective volume/thermal capacity, inlet/outlet heights.
  • Heat loss capacity rate (total and, if needed, distributed by height).
  • Parameters describing thermal stratification (degradation during standby and behavior during direct discharge - e.g. effective vertical thermal conduction).
  • Locations of control and monitoring sensors.
• Test reporting and data processing: Required content of test reports and parameter identification routines are specified to support model-based performance evaluation.
• Annexes and compliance: Includes normative benchmarks, verification methods, numerical model requirements, hot‑water comfort guidance, and informative annexes linking the standard to EU ecodesign and energy‑labelling regulations.

Applications

EN 12977-4:2018 is used to:

• Provide standardized input parameters for simulation tools that predict solar combisystem performance.
• Support product development, validation and R&D for combistores and thermal stores (including stores for heat pumps when water is the storage medium).
• Enable laboratory testing and comparative performance assessment by independent test laboratories.
• Demonstrate compliance with Ecodesign and Energy Labelling requirements by supplying validated store performance data for regulatory calculations.
• Assist system designers and installers in selecting and specifying stores for solar combisystems.

Who should use this standard

• Manufacturers of solar combistores and thermal stores
• Test laboratories and certification bodies
• System designers, simulation engineers and HVAC consultants
• Regulatory bodies and energy auditors
• R&D teams developing stratification‑sensitive storage solutions

Related standards

• EN 12977-1:2018 - General requirements for solar water heaters and combisystems
• EN 12977-2:2018 - Test methods for solar water heaters and combisystems
• EN 12977-3:2018 - Performance test methods for solar water heater stores (closely referenced)
• EN 12828 - Heating systems in buildings - Design for water‑based heating systems
• EN ISO 9488:1999 - Solar energy - Vocabulary

Keywords: EN 12977-4:2018, solar combistores, performance test methods, thermal stores, thermal stratification, heat loss capacity rate, laboratory store testing, CEN, ecodesign, energy labelling.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermische Solaranlagen und ihre Bauteile - Kundenspezifisch gefertigte Anlagen - Teil 4: Leistungsprüfung von Warmwasserspeichern für Solaranlagen zur Trinkwassererwärmung und Raumheizung (Kombispeicher)Installations solaires thermiques et leurs composants - Installations assemblées à façon - Partie 4 : Méthodes d'essai des performances pour chauffe-eau solaires et installations solaires combinéesThermal solar systems and components - Custom built systems - Part 4: Performance test methods for solar combistores91.140.65Oprema za ogrevanje vodeWater heating equipment91.140.10Sistemi centralnega ogrevanjaCentral heating systems27.160Solar energy engineeringICS:Ta slovenski standard je istoveten z:EN 12977-4:2018SIST EN 12977-4:2018en,fr,de01-september-2018SIST EN 12977-4:2018SLOVENSKI
STANDARDSIST EN 12977-4:20121DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12977-4
April
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{ sä s v rä x w Supersedes EN
s t { y yæ vã t r s tEnglish Version
Thermal solar systems and components æ Custom built systems æ Part
vã Performance test methods for solar combistores Installations solaires thermiques et leurs composants æInstallations assemblées à façon æ Partie
v ã Méthodes d 5essai des performances pour chauffeæeau solaires et installations solaires combinées
Thermische Solaranlagen und ihre Bauteile æ Kundenspezifisch gefertigte Anlagen æ Teil
vã Leistungsprüfung von Warmwasserspeichern für Solaranlagen zur Trinkwassererwärmung und This European Standard was approved by CEN on
t { October
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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:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t { y yæ vã t r s z ESIST EN 12977-4:2018

Store model benchmark tests . 17 Annex B (normative)
Verification of store test results . 18 Annex C (normative)
Benchmarks for the parameter identification . 19 Annex D (informative)
Requirements for the numerical store model . 20 Annex E (informative)
Determination of hot water comfort . 21 Annex F (informative)
Implementation for Ecodesign and Energy Labelling . 22 F.1 Standing loss . 22 F.2 Nominal store volume . 22 F.3 Volume of the non-solar heat storage . 22 Annex ZA (informative)
Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EC) No 811/2013 aimed to be covered . 23 Annex ZB (informative)
Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EC) No 812/2013 aimed to be covered . 24 SIST EN 12977-4:2018

Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EC) No 814/2013 aimed to be covered. 25 Bibliography . 26
All stores can have one or more additional electrical auxiliary heating elements. SIST EN 12977-4:2018
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