Heat exchangers. Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers

This document establishes a standardized framework for the terminology and performance evaluation of heat exchangers. It defines the fundamental terms and concepts necessary for consistent communication within the engineering and manufacturing sectors. The text outlines a set of universal testing methods applicable to all types of heat exchangers, regardless of their specific design, size, or operational conditions. By adhering to these guidelines, stakeholders can ensure accurate comparison of performance data across different systems. The methodology covers procedures for determining key performance parameters under specified conditions, providing a reliable basis for design validation and quality control. This approach facilitates international compatibility and technical clarity, supporting the development of efficient thermal systems. The content focuses strictly on the technical definitions and the prescribed experimental procedures, serving as a reference for professionals involved in heat transfer equipment analysis and testing.