Prescribes methods of testing the thermal performance and pressure drop of liquid-to-liquid heat exchangers. Lists and defines the terms for rating the thermal performance of liquid-to-liquid heat exchangers. Establishes the methods of test to be used as a basis for obtaining the thermal performance and pressure drop of liquid-to-liquid heat exchangers using water or other single-phase liquids. Applies to laboratory testing for purposes of rating heat exchangers within its scope. Not intended for field testing of heat exchangers of any type. Dual units of measurement.
ANSI/ASHRAE 181-2023 history
1970ANSI/ASHRAE 181-2023 Methods of Testing for Rating Liquid-to-Liquid Heat Exchangers
2018ANSI/ASHRAE 181-2018 Methods of Testing for Rating Liquid-to-Liquid Heat Exchangers