Analysis of Test Methods for Durability and Performance of Heat-Pipes for Solar Thermal Application
Abstract
After introducing the configuration of a heat-pipe for solar thermal application, this paper analyses test methods for two main aspects which affect the durability of heat-pipes, i.e. high temperature resistance and freeze resistance, and also analyses test methods for three important parameters which indicate the performance of heat-pipes, i.e. starting temperature, temperature uniformity and heat transfer power. For each durability test and performance test of heat-pipes, their significance and necessity, as well as their test objective, test principle, test conditions, test apparatus, test procedure, test results, etc. are respectively introduced in this paper. These test methods have been newly developed as the International Standard ISO 22975-2: 2016, which will play an important role in enhancing product quality and reducing test cost of heat-pipes.