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Study on Thermal Comfort, IAQ in Shanghai Suburb and the Testing System Based on Labview

Author: LiuZuo
Tutor: ZouZuo
School: Donghua University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: Thermal comfort Adaptive model Comfortable temperature CO2 concentration Labview
CLC: TU831
Type: Master's thesis
Year: 2010
Downloads: 86
Quote: 0
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Abstract


The article first Fanger 's thermal comfort model , using Labview developed 8-channel data acquisition and thermal comfort test system . Test system temperature, wind speed , relative humidity , once the CO 2 < / sub> concentration parameters for real-time data acquisition , sampling frequency up to 10HZ PMV, PPD, water vapor content , and real-time processing data , the dew point secondary parameters such as temperature . Through a long period of testing , the system stable and reliable operation . Then , the use of the test system , the selected test room , testing room indoor thermal comfort . The study found the winter indoor air-conditioned room air temperature variations is much higher than the room in summer , winter, air-conditioned room indoor temperature trend is consistent with the outdoor temperature ; the summer indoor relative humidity about winter times , winter relative humidity less than 40 % ; indoor air flow rate is less than 0.2m / s, about 0.1m / s , the basic thermal sensation ; the indoor CO 2 concentrations rising day's work time , only at lunch time to stabilize for some time. The indoor CO 2 concentration of human activities related to the increase of the conversation will instantly improve the indoor CO 2 concentration . Finally, the questionnaire based Dedear the adaptive model to study the indoor thermal comfort of the suburbs of Shanghai School . The study found that the school office good thermal comfort room personnel for more than 80% of the thermal environment satisfaction . Satisfaction higher winter no air conditioning room air-conditioned room 10% , to the satisfaction of the air-conditioned room in the summer no air conditioning room 10% higher ; school location , comfortable temperature of 22.66 ° C in winter and summer comfort temperature of 26.09 ° C ; winter when indoor CO 2 concentrations higher than 800PPM , give people a sultry feeling ; summer CO 2 concentrations no significant effect on thermal sensation .

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment > Air-conditioning
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