预计平均热感觉指数PMV计算模型的分析与改进

Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》

柳光磊 刘何清 欧聪颖 吴世先 吴国珊

Abstract： Environmental thermal comfort is an important index to measure the grade of buildings.Accord-ing to a large number of experiments and field studies , the PMV thermal comfort model still needs to beimproved 'There is a certain deviation between the heat dissipation terms , heat load and PMV value calcu-lated by the existing PMV calculation model and the actual value ;There are still some objections to thedefinition of human thermal load and the calculation method of the environmental conditions of “near ther-mal neutrality”suitable for PMV evaluation model.Through theoretical analysis , this paper puts forward anew“near thermoneutrality”environmental condition, ia new definition of human thermal load and its cal-culation method , and proposes a new PMV calculation model.'Through comparative analysis , it is found thatthe new model corrects the existing deviation of PMV prediction in the hot environment. On the other hand , under the new thermal load calculation method , the functional relation (KM) between PMV and ther-mal load must be adjusted accordingly. In order to obtain an accurate functional relation (KM ) , a more ac-curate relation between average human skin temperature and environmental parameters must be obtained.

YES

 Hits 326  Downloads 154  Comment 0