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Cold Winter Residential Indoor Thermal And Humid State Of The Environment And Occupants Of Adaptive Research

Posted on:2004-06-23Degree:MasterType:Thesis
Country:ChinaCandidate:F F PengFull Text:PDF
GTID:2192360092480758Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
It is commonly estimated that persons in economically developed countries spend at least 80% of their time indoors. This suggests that the quality of the indoor environment can have a significant impact on comfort, health and overall sense of well-being. But the main requirement to buildings focus on architectural area, style, room layout and environment around, people ignore the thermal environment and indoor air quality which directly impact on people. On the other hand, the research of thermal environment according to Code for Design of HVAC in China, habituation, adjustment and acclimatization of localization are almost blank.Date came from 20 big cities on the cold Area in winter. In order to attain typical database as many as possible, the residences researched have different heating system, structure, site and so on. and anyway data from Dalian was most detailed. The raw data comprise both subjective and physical data. Subjective data came from questionnaire survey, which include building description, heating system, habituation and thermal sensation on the 7-point ASHRAE scale. Field measurement include Indoor air temperature and humidity, radiant temperature .air speed and indoor air quality. On the base of field survey, we use advanced analysis method and soft (SPSS, Origin), explore the influence of heating system, investigate the comfort and adaptation in different areasOn the other hand, the interactions between the occupants and indoor climate are exceedingly complex. People in real buildings was not as a passive recipient of thermal environment, but play an active roletoi maintaining their own comfort. The poor predictive capabilities of PMV in thermal sense of the north area' occupants suggests that adaptive processes other than behavioral adjustment (which would be accounted for in the heat balance models) must be occurring. Expectation seems the most likely explanation, which result from a confluence of current and past thermal experiences, cultural and technical practices, since expectation has all but been eliminated by the climate-chamber method of comfort research.It is essential to study indoor thermal environment in the inhabited building.
Keywords/Search Tags:field survey, questionnaire survey, thermal environment, thermal comfort, regional difference, adaptation
PDF Full Text Request
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