低压环境不同代谢水平下人体热感觉的探究

发布时间：2018-02-11 13:58

本文关键词： 低气压环境不同活动水平不同环境温度散热量人体热感觉　出处：《青岛理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着经济和社会的发展，人们越来越注重室内环境的舒适性，而热环境是影响人体舒适程度的主要因素，因此人体热舒适的研究近年来得到了迅猛的发展。人们室内工作、生活的活动水平由静坐为主的轻度活动，逐步变得多样化，代谢量有了显著增加，由轻度活动增加到了中等、重度活动水平。我国海拔高度大于1000米的陆地面积约占全国陆地面积的60%,并且是世界上高原人口数量最多的国家，另外航空领域也涉及到低气压环境，使得低压领域的人体热舒适日渐的成为研究热点。因此本文结合以上的现状对低压下轻度、中等、重度三种活动水时的人体热感觉展开了研究。低气压环境下人体的热感觉、热舒适、散热量及生理参数会较常压时发生变化，进而会影响人体对热环境的评价，因此热感觉的评价模型也会发生变化。本文在分析以上变量的基础上建立适用于0.8atm内不同大气压力下不同活动水平的热感觉预测模型。实验中首先通过对大气压力研究范围的细化，探究了人体热感觉、热舒适、皮肤温度及新陈代谢率随压力的变化情况；其次通过增大环境温度的变化范围、设置不同的活动强度，研究了不同大气压力不同环境温度不同活动水平时人体热感觉的变化规律。对实测热感觉TSV进行了分析，对比不同活动水平下TSV与PMV，研究TSV与PMV随压力的变化率；从皮肤温度和皮肤湿润度的角度提出了综合皮肤指标的概念，探讨其热可接受范围。此外，通过分析皮肤温度、出汗感与热感觉的关系，获得了不同大气压力和活动水平时的中性皮肤温度，与前述综合皮肤温度指标结果进行对比；进一步地，，对不同大气压力、活动水平和环境温度下人体散热量进行解析、研究显热散热与潜热散热的相对变化，并以（1-Q/M）作为控制变量来研究其与人体热感觉TSV的关系。
[Abstract]:With the development of economy and society, people pay more and more attention to the comfort of indoor environment, and thermal environment is the main factor that affects the degree of human body comfort, so the research of human thermal comfort has developed rapidly in recent years. The level of activity in life has gradually become diversified from a mild activity dominated by sit-ins, and the amount of metabolism has increased significantly, from mild activity to moderate activity. Heavy activity level. China's land area above 1000 meters above sea level accounts for about 60 percent of the country's land area, and is the country with the largest population on the plateau in the world. In addition, the aviation field also involves a low-pressure environment. The thermal comfort of human body in the field of low pressure has become a research hotspot. Therefore, this paper studies the thermal sensation of human body under low pressure under mild, medium and heavy water. The thermal sensation, thermal comfort, heat dissipation and physiological parameters of the human body under low pressure will change compared with the normal pressure, which will affect the human body's evaluation of the thermal environment. Therefore, the evaluation model of thermal sensation will also change. Based on the analysis of the above variables, a prediction model of thermal sensation with different activity levels under different atmospheric pressure in 0.8atm is established in this paper. In the experiment, the changes of thermal sensation, thermal comfort, skin temperature and metabolic rate with pressure were investigated by refining the research scope of atmospheric pressure; secondly, by increasing the range of environmental temperature, With different activity intensity, the changes of human body thermal sensation under different atmospheric pressure, different ambient temperature and different activity level were studied. In this paper, we analyzed the measured thermal sensory TSV, compared TSV with PMV at different activity levels, studied the change rate of TSV and PMV with pressure, put forward the concept of integrated skin index from the angle of skin temperature and skin wettability. In addition, by analyzing the relationship among skin temperature, sweating sensation and thermal sensation, the neutral skin temperature at different atmospheric pressure and activity level was obtained, and the results were compared with the results mentioned above. Furthermore, the relative changes of sensible heat dissipation and latent heat dissipation are studied under different atmospheric pressure, activity level and ambient temperature, and the relationship between heat transfer and human thermal sensation TSV is studied by using 1-Q / M as the control variable.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：R126.8;TU111

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