| Indoor comfort and building energy efficiency are the key factors in human living environment evaluation. A series of norms and standards are laid down by China to determine the reasonable indoor thermal comfort parameters and building environment requirement of human. The thermal comfort model based on the field investigation of foreign researchers is directly adopted to draft the unified design parameters in our country. However, China has a vast territory which is divided into 5 climatic zones according to the thermal design code, thus the uniform parameters are not appropriate to some specific circumstances under Chinese cultural and climates, nor reflect the mechanism of thermal adaptation comprehensively. Therefore, this paper analyzes the adaptation model of different climate zones and the reasonable ranges of indoor thermal comfort parameters under different climatic zones and relationships among them. Indoor design parameters and thermal adaptation are discussed based on thermal environment in heated and cooled buildings. The main contents include:(1) The correlation between climate and indoor MRT was discussed based on the relation of envelope and climate. This paper established the relationships between thermal comfort and climate according to the influences of outdoor climate on MRT.(2) The relationships between indoor design parameters and climate were analyzed to study the influences of climate on clothing insulation. Different scholars’ thermal adaptation models about climate and indoor clothing insulation were summarized. The adjustment behavior was analyzed about different climatic zones environment. The adaptation model of adjusting clothing insulation was established. The author compared the influence of clothing insulation on thermal comfort. Finally indoor design parameters were finalized under different climate.(3) Two comparisons were made to set the range of indoor design temperature and humidity. One was the influence of temperature and humidity on thermal comfort, the other was the influence of them on energy and exergy.Methods and main conclusions are shown below:(1) The influences of different climate on indoor parameters were studied thought simulation. The results show that the decrease of outdoor air temperature results in a decrease of MRT and a increase of radiant temperature asymmetry. PMV still reduces at constant indoor air temperature. Low heat transfer coefficient of the envelope can effectively depress the varity. While external solar radiation through the glazing unit directly improves thermal sensation in heating mode.(2) The outdoor air temperature decline results in indoor clothing insulation increase, which reduces people’s sensitivity to indoor air temperature and MRT. Besides effect of air temperature on PMV is less than MRT.(3) The indoor design air temperature of Hot-Summer and Cold-Winter zone, Cold zone and Severe Cold zone can be as low as 18.1℃, 16.3℃ and 13.3℃. It is an effective way to save energy in establishing indoor parameters for different outdoor air temperature.(4) Through case analysis, it is found that the effect of temperature on PMV is greater than humidity, however, the conclusion of the effect on energy and exergy consumption is reverse. In condition of air temperature which acted as the basis of environmental control in Class A which is compared to Class C as a category, energy and exergy consumption increase of 9.36–11.16% and 13.86–64.26%. In condition of air humidity acted as the basis, the relative humidity upper limit should be selected in hot and humid climate, while the neutral value should be chosen in the dry regional climate.To provide a scientific data foundation and theoretical preparations for the compilation and revision of building thermal design code and building energy efficiency design standards, the paper establish a thermal comfort climate adaptation model based on regional climates to predict the indoor thermal comfort in buildings. |
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