SIST EN ISO 22975-2:2017 PDF

Solar energy - Collector components and materials - Part 2: Heat-pipes for solar thermal application - Durability and performance (ISO 22975-2:2016)

Title (English):

SIST EN ISO 22975-2:2017

Solar energy - Collector components and materials - Part 2: Heat-pipes for solar thermal application - Durability and performance (ISO 22975-2:2016)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 30
Publication date:: November 29, 2016
ICS:: 27.160
Technical committee:: TOP - Thermal insulation

Document language:

enru

Delivery time:1–7 days

Price:82 €

Description (English):

ISO 22975-2:2016 specifies definitions and test methods for durability and performance of heat-pipes for solar thermal application. ISO 22975-2:2016 is applicable to heat-pipes for use with evacuated tubes, including glass-metal sealed evacuated tubes and double-glass evacuated tubes, as well as with flat plate collectors. ISO 22975-2:2016 provides test methods for determining durability of the heat-pipe, including high temperature resistance and freeze resistance. ISO 22975-2:2016 also provides test methods for measuring performance of the heat-pipe, including starting temperature, temperature uniformity and heat transfer power of the heat-pipe. ISO 22975-2:2016 is only applicable to gravity heat-pipes.

Technical details

SKU: SIST EN ISO 22975-2:2017

Abstract

Overview

EN ISO 22975-2:2016 / ISO 22975-2:2016 specifies definitions and standardized test methods for the durability and performance of heat‑pipes for solar thermal applications. It applies to complete gravity heat‑pipes used with evacuated tubes (including glass‑metal sealed and double‑glass designs) and with flat plate collectors. The standard sets out objective, principle, test conditions, apparatus, procedures and required results for each durability and performance test.

Key topics and technical requirements

Scope and applicability
- Only for gravity heat‑pipes (no internal capillary wick).
- Applicable to heat‑pipes used in evacuated tubes and flat plate collectors.
Durability tests
- High temperature resistance - assesses long‑term stability under elevated temperatures.
- Freeze resistance - verifies integrity and function after freezing cycles.
Performance tests
- Starting temperature - determines the temperature at which the heat‑pipe begins to transfer heat effectively.
- Temperature uniformity - measures temperature distribution along the heat‑pipe (important for collector efficiency).
- Heat transfer power - quantifies the heat flux the heat‑pipe can transport under defined conditions.
Test structure
- For each test the standard defines: objective, principle, test conditions, apparatus, procedure and results reporting.
- A complete heat‑pipe is required for testing.
Normative references
- Includes ISO 9488 (solar energy vocabulary) and ISO/IEC 17025 (competence of testing laboratories).

Practical applications

Ensures reliable selection and specification of heat‑pipes for solar thermal systems.
Provides test methods for manufacturers to validate product durability and thermal performance.
Supports testing laboratories and certification bodies in producing consistent, comparable test reports.
Guides system designers, consultants and procurers in evaluating component suitability for evacuated tube and flat plate collectors.
Useful for R&D teams optimising starting temperatures, heat transfer capacity and freeze resilience.

Who should use this standard

Heat‑pipe and solar collector manufacturers
Accredited testing laboratories
Certification and conformity assessment organisations
Solar thermal system designers, specifiers and installers
Procurement teams and product quality assurance personnel

Related standards

EN ISO 22975‑1 / ISO 22975‑1 - Evacuated tube durability and performance
EN ISO 22975‑3 / ISO 22975‑3 - Absorber surface durability
ISO 9488 and ISO/IEC 17025 referenced for terminology and laboratory competence

Keywords: ISO 22975-2, EN ISO 22975-2:2016, heat‑pipes, solar thermal, durability tests, performance tests, evacuated tubes, flat plate collectors, gravity heat‑pipes.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Scope and applicability
- Only for gravity heat‑pipes (no internal capillary wick).
- Applicable to heat‑pipes used in evacuated tubes and flat plate collectors.
Durability tests
- High temperature resistance - assesses long‑term stability under elevated temperatures.
- Freeze resistance - verifies integrity and function after freezing cycles.
Performance tests
- Starting temperature - determines the temperature at which the heat‑pipe begins to transfer heat effectively.
- Temperature uniformity - measures temperature distribution along the heat‑pipe (important for collector efficiency).
- Heat transfer power - quantifies the heat flux the heat‑pipe can transport under defined conditions.
Test structure
- For each test the standard defines: objective, principle, test conditions, apparatus, procedure and results reporting.
- A complete heat‑pipe is required for testing.
Normative references
- Includes ISO 9488 (solar energy vocabulary) and ISO/IEC 17025 (competence of testing laboratories).

Practical applications

Ensures reliable selection and specification of heat‑pipes for solar thermal systems.
Provides test methods for manufacturers to validate product durability and thermal performance.
Supports testing laboratories and certification bodies in producing consistent, comparable test reports.
Guides system designers, consultants and procurers in evaluating component suitability for evacuated tube and flat plate collectors.
Useful for R&D teams optimising starting temperatures, heat transfer capacity and freeze resilience.

Who should use this standard

Heat‑pipe and solar collector manufacturers
Accredited testing laboratories
Certification and conformity assessment organisations
Solar thermal system designers, specifiers and installers
Procurement teams and product quality assurance personnel

Related standards

EN ISO 22975‑1 / ISO 22975‑1 - Evacuated tube durability and performance
EN ISO 22975‑3 / ISO 22975‑3 - Absorber surface durability
ISO 9488 and ISO/IEC 17025 referenced for terminology and laboratory competence

Keywords: ISO 22975-2, EN ISO 22975-2:2016, heat‑pipes, solar thermal, durability tests, performance tests, evacuated tubes, flat plate collectors, gravity heat‑pipes.

SIST EN ISO 22975-2:2017 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Related standards

Solar energy — Collector components and materials — Part 2: Heat-pipes for solar thermal application — Durabi…

Solar energy - Vocabulary (ISO 9488:2022)

Gas analysis - Contents of certificates for calibration gas mixtures - Amendment 1: Cross reference list to I…

Solar energy - Collector components and materials - Part 1: Evacuated tubes - Durability and performance (ISO…

Solar energy - Collector components and materials - Part 3: Absorber surface durability (ISO 22975-3:2014)