ISO 21773:2021

International Standard   Current Edition · Approved on 18 June 2021

Methods of test and characterization of performance for energy recovery components

ISO 21773:2021 Files

English 44 Pages
Current Edition
83.94 BHD

ISO 21773:2021 Scope

This document specifies methods for testing and characterizing the performance of air-to-air heat/energy exchangers when used as devices to transfer heat or heat and water vapor between two airstreams used in ventilation systems. It also specifies methods to characterize the performance of exchangers for use in calculation of the energy performance of buildings. This document is applicable to:

—    fixed-plate exchangers (also known as recuperators),

—    rotary exchangers, including heat wheels and total energy wheels (also known as regenerators),

—    heat pipe exchangers using a heat transfer medium, excluding those using mechanical pumping.

This document does not provide a method for measuring the response of exchangers to the formation of frost.

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