指向型热辐射装置对室内人员热舒适影响的实验与仿真研究

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中图分类号：TU832.1 文献标志码：A 文章编号：1673-3851（2025）07-0541-15

引用格式：，等．指向型热辐射装置对室内人员热舒适影响的实验与仿真研究[J」．浙江理工大学学报（自然科学），2025，53（4）：541-555.

Abstract：To clarify the improvement of thermal comfort of occupants under the influence of directional heat radiation （DHR） device in a slightly cold environment，and to explore the most effective seting conditions，first，an experimental study on human thermal comfort under the DHR device's active intervention of the local thermal environment was conducted，and the improvement of local thermal comfort，thermal sensation and whole-body thermal comfort were obtained. Then，the differences in the overallindoor thermal environment and the local thermal environment near the human body under different seting conditions were compared and analyzed through computational fluid dynamics （CFD） software，and the most efective setting conditions and the distribution law of thermal comfort indexes such as PMV-PPD under this condition were obtained. According to the results of the human thermal comfort experiment， when the DHR device was vertically oriented in a slightly cool environment，within a 3O-minute operation time，the average thermal sensation of the occupants changed from -0.4 to -0.6 ，which was better than the change from -0.4 to -1.6 without the device. This configuration significantly mitigated the declining trend in human thermal comfort. According to the simulation results，the most effective setting condition of the device was a surface temperature of 40∘C for the radiant pipe，a pipe diameter of DN32，a pipe spacing of 15cm ， and a distance of 85cm . Under this condition，the equivalent temperature of the thermal environment around the human body was about 21∘C ，the PMV value was between -0.5 and 0.5，and the PPD value was about 5% . Results show that deploying the DHR device in a slightly cool environment can improve the thermal environment around the human body，and can significantly improve the local sensation and overall thermal comfort of occupants by raising the average radiative temperature and equivalent temperature. The research could provide new ideas for the improvement of the thermal environment occupants' local and thermal comfort.

Key words：directional heat radiation； thermal comfort；local thermal environment；computational fluid dynamics; PMV-PPD

0引言

辐射供暖是冬季常用的一种供暖方式，现有辐射供暖方式主要包括辐射地板、热辐射板、人体局部辐射加热器等[1-3]。（剩余17139字）