EN 305:1997
(Main)Heat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers
Heat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers
This European Standard specifies general terms and calculations used in deter- mining performance of heat exchangers including related theory and general test procedure. This European Standard applies to heat exchangers classified according to the general arrangement of heat transfer specified by heat transfersurface types of 4.1 and 4.2 of prEN 247:1996. This European standard applies when referenced by the various branch applicationstandards. The specific application European standards shall be the prime reference documents.
Wärmeaustauscher - Begriffe und allgemeine Festlegungen bei der Prüfung zur Leistungsbestimmung
Diese Euopäische Norm legt die allgemeinen Benennungen und Begriffe einschlies-slich derzugehörigen Theorie und der allgemeinen Prüfung fest, die bei der Bestimmung der Leistung von Wärmeaustauschern verwendet werden. Diese E.N. giltfür Wärmeübertragung eingeteilt sind, die durch die Arten von Wärmeüber- tragungsflächen in 4.1 und 4.2 der prEN 247:1996 festgelegt ist. Diese E.N.giltbei Verweisungen auch für verschiedene, sich überschneidende Fachbereiche. Diespezifische Anwendung Europäischer NOrmen hat bei den Dokumenten, auf die verwiesen wird, Vorrang.
Echangeurs thermiques - Définitions de la performance des échangeurs thermiques et procédure générale d'essai pour la détermination de la performance de tous les échangeurs thermiques
La présente norme européenne fait partie d'une série de normes européennes consacrées aux échangeurs thermiques. Celle-ci fournit au constructeur les info nécessaires à la présentation des caractéristiques de performance d'un échangeurthermique dans diverses conditions de fonctionnements. Ces caractéristiques forment la base de l'évaluation de l'état d'un échangeur, qu'il soit neuf ou qu'il fonctionne déjà depuis un certain temps. Cette norme fournit également auxacheteurs d'é.th. les info nécessaires pour spécifier et choisir le produit le mieux adapté à leurs besoins.
Prenosniki toplote - Definicije in splošni preskusni postopek za ugotavljanje njihovih lastnosti
General Information
Overview
EN 305:1997 (CEN) - Heat exchangers: Definitions of performance and general test procedure - provides European-level guidance on the terminology, theory, calculations and a general test procedure used to determine the performance of heat exchangers. The standard is intended as a general reference that applies when cited by more specific branch application standards. It covers heat exchangers classified according to the heat transfer surface arrangements referenced in prEN 247:1996 (types 4.1 and 4.2).
Key topics and requirements
- Definitions and terminology: Standardized terms for describing heat exchanger performance and measurement results to ensure consistent reporting across manufacturers and test laboratories.
- Performance calculations and theory: General calculation methods and theoretical background used to determine thermal effectiveness, overall heat transfer rates and related performance indicators (presented as general principles rather than prescriptive formulas for specific models).
- General test procedure: A harmonized approach for conducting performance tests on heat exchangers, including measurement objectives, key test parameters and procedural steps applicable across different exchanger designs.
- Scope and applicability: Applies specifically to exchangers with surface arrangements defined in prEN 247:1996 (heat transfer surface types 4.1 and 4.2) and is intended to be used when referenced by industry-specific standards; application-specific standards take precedence for detailed requirements.
- Consistency and traceability: Emphasizes clear reporting of test conditions and results so performance data are comparable and traceable between suppliers, testing bodies and end users.
Applications and users
EN 305:1997 is useful for:
- Heat exchanger manufacturers preparing performance data and technical datasheets.
- Test laboratories and QA teams establishing general test setups and reporting methods for thermal performance.
- Design engineers in HVAC, boiler, chemical process and power industries who need consistent performance definitions for component selection and system modelling.
- Standards writers and certification bodies referencing general performance definitions when developing application-specific standards or conformity assessments.
Practical uses include establishing baseline test methods, ensuring consistent thermal performance reporting, supporting product comparison, and feeding reliable input data into system simulations.
Related standards
- prEN 247:1996 - referenced for heat transfer surface classification (types 4.1 and 4.2).
- Application-specific EN standards for boilers, HVAC equipment and process heat exchangers - these take precedence when they reference EN 305:1997.
Keywords: EN 305:1997, heat exchangers, heat exchanger testing, performance definitions, test procedure, CEN standard, heat transfer, thermal performance.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prenosniki toplote - Definicije in splošni preskusni postopek za ugotavljanje njihovih lastnostiWärmeaustauscher - Begriffe und allgemeine Festlegungen bei der Prüfung zur LeistungsbestimmungEchangeurs thermiques - Définitions de la performance des échangeurs thermiques et procédure générale d'essai pour la détermination de la performance de tous les échangeurs thermiquesHeat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers27.060.30Grelniki vode in prenosniki toploteBoilers and heat exchangers01.040.27Prenos energije in toplote (Slovarji)Energy and heat transf
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Frequently Asked Questions
EN 305:1997 is a standard published by the European Committee for Standardization (CEN). Its full title is "Heat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers". This standard covers: This European Standard specifies general terms and calculations used in deter- mining performance of heat exchangers including related theory and general test procedure. This European Standard applies to heat exchangers classified according to the general arrangement of heat transfer specified by heat transfersurface types of 4.1 and 4.2 of prEN 247:1996. This European standard applies when referenced by the various branch applicationstandards. The specific application European standards shall be the prime reference documents.
This European Standard specifies general terms and calculations used in deter- mining performance of heat exchangers including related theory and general test procedure. This European Standard applies to heat exchangers classified according to the general arrangement of heat transfer specified by heat transfersurface types of 4.1 and 4.2 of prEN 247:1996. This European standard applies when referenced by the various branch applicationstandards. The specific application European standards shall be the prime reference documents.
EN 305:1997 is classified under the following ICS (International Classification for Standards) categories: 01.040.27 - Energy and heat transfer engineering (Vocabularies); 27.060.30 - Boilers and heat exchangers. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 305:1997 is associated with the following European legislation: Standardization Mandates: M/BC/CEN/87/5. 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.
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이 기사는 EN 305:1997 표준에 대해 설명하고, 열교환기의 성능을 결정하기 위한 일반적인 테스트 절차와 용어를 제공합니다. 이 표준은 prEN 247:1996에서 지정된 열전달 표면 유형 4.1 및 4.2에 따라 분류된 열교환기에 적용됩니다. 이 표준은 각 분야 응용 표준에서 참조될 때 적용됩니다. 구체적인 응용 유럽 표준은 주요 참조 문서로 사용됩니다.
The article discusses the EN 305:1997 standard, which provides definitions and a general test procedure for evaluating the performance of heat exchangers. This standard applies to heat exchangers that are classified based on the arrangement of heat transfer surfaces. It is important to note that this standard is referenced by specific application European standards, which serve as the main documents for reference.
이 기사는 EN 305:1997 표준에 대해 다루고 있으며, 이 표준은 열교환기의 성능을 평가하기 위한 정의와 일반 테스트 절차를 제시합니다. 이 표준은 열전달 표면의 일반배열에 따라 분류된 열교환기에 적용됩니다(prEN 247:1996의 4.1 및 4.2의 열전달 표면 유형). 이 표준은 다양한 분야의 응용 표준에서 참조될 때 적용됩니다. 특정한 응용분야의 유럽 표준이 기본 참조 문서가 되어야 합니다.
この記事は、EN 305:1997規格に関して述べており、この規格は熱交換器の性能評価のための定義や一般的なテスト手順を提供しています。この規格は、熱伝達表面の一般的な配置に基づいて分類された熱交換器に適用されます（prEN 247:1996の4.1および4.2の熱伝達表面タイプ）。この規格は、さまざまな分野の応用規格で参照される場合に適用されます。特定の応用分野のヨーロッパ規格が主要な参照文書となります。
This article discusses the EN 305:1997 standard, which provides definitions and a general test procedure for determining the performance of heat exchangers. The standard applies to heat exchangers that are classified based on the arrangement of heat transfer surfaces specified in prEN 247:1996. It is important to note that this standard is used in conjunction with specific application European standards, which serve as the main reference documents.
この記事では、EN 305:1997規格について説明し、熱交換器の性能を決定するための一般的なテスト手順と用語を提供しています。この規格は、prEN 247:1996で指定された熱転送面のタイプ4.1および4.2に基づいて分類される熱交換器に適用されます。この規格は、各分野の応用規格が参照される場合に適用されます。具体的な応用のヨーロッパ規格は、主要な参照文書として使用されます。
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