In response to the high temperature and high humidity conditions in underground mining operations,a solution involving the use of individual thermal protection equipment is proposed.2 types of individual thermal protec-tion equipment utilizing phase change materials have been developed,and a subjective evaluation scale consisting of 5 categories has been used to assess the performance of the thermal comfort,tactile comfort,garment comfort,fabric feel,and usability for the test subjects.The results indicate:①Both types of thermal protection equipment received favorable ratings for thermal comfort from the test subjects,but they became relatively humid over time due to the evapo-ration of bodily sweat,indicating the need for improvement in dehumidification performance;②Towards the end of the testing period,the horizontal-insertion thermal protection equipment received a positive assessment for usability,while the vertical-insertion thermal protection equipment only received a slightly usable evaluation,with test subjects expressing negative feelings about the sagging sensation caused by the phase change materials melting;③Overall,test subjects showed a preference for the thermal protection equipment with phase change materials utilizing horizontal insertion,indicating that the optimization research for the vest-style thermal protection equipment has yielded positive results.
NETL
NSTL
维普
万方数据
