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Adaptive thermal comfort in naturally ventilated hostels of warm and humid climatic region,Tiruchirappalli,India

Energy and Built Environment 2023年第5期4卷 530-542页

作者： Mohd Faheem Nikhil Bhandari srinivas tadepalli Department of Architecture National Institute of TechnologyTiruchirappalliTamil Nadu 620015India

Thermal comfort is an important factor in hostel buildings when the aim is to maximize the productivity of the *** to the extreme weather conditions,achieving thermal comfort in a hostel building in a hot and humid climate is even more *** conducted in naturally ventilated hostel buildings in warm-humid climates involved the influence of outdoor air temperature only up to 34.4℃ and have been conducted in a specific *** contrast,the Tiruchirappalli climate is characterized by a higher range of environmental ***,to understand the thermal comfort conditions and usage of the environmental controls in naturally ventilated hostel buildings at the higher range of the environmental variables,a thermal comfort field study spread over one year was carried out at the National Institute of Technology,Tiruchirappalli,India,in twenty-seven hostel *** study relies on field observation and thermal comfort responses from 2028 questionnaires collected from the students between September 2019 to August *** analysis revealed a neutral temperature of 29.5℃ and a comfort range from 26.1℃ to 32.8℃,indicating a wide range of ther-mal adaptation than suggested by the National Building Code of India and ASHRAE standard *** preferred temperature was 27.8℃,indicating that students preferred a cooler *** with sweating conditions extended the upper limit of thermal acceptability from 31.8℃ to 32.4℃.The use of a mosquito net can increase the probability of opening a *** indicated that overall behavioral adjustment could extend the comfort *** study results would be helpful to develop guidelines and designs for naturally ventilated hostel buildings in warm and humid climates that will contribute to reducing energy demand.

关键词： Naturally ventilated hostel building Adaptive thermal comfort Adaptive behavior Sweating condition Elevated air speed

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ASSESSMENT OF AIR CHANGE EFFECTIVENESS AND THERMAL COMFORT IN A NATURALLY VENTILATED KITCHEN WITH INSECT-PROOF SCREEN USING CFD

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Journal of Green Building 2021年第3期16卷 37-56页

作者： Jayasree T K Jinshah B S Lakshmi Visakha V srinivas tadepalli Department of Architecture National Institute of TechnologyTiruchirappalliIndia Department of Mechanical Engineering National Institute of TechnologyTiruchirappalliIndia

Many dwellings in warm-humid climates attain a comfortable environment by natural *** opening of exterior windows for ventilation allows the entry of insects along with the *** a remedy,occupants install insect-proof screens on windows resulting in reduced airflow into the *** study attempts to evaluate the air change effectiveness and thermal comfort in a residential kitchen with insect-proof screens.A kitchen with insect-proof screens on the windows is compared with a case without insect-proof *** simulation was conducted using ANSYS Fluent 2019 *** insect-proof screen is modelled as a porous *** air velocity and temperature measurements were validated by measurements in a real *** presence of insect-proof screens reduced the air velocity inside the space by 82%.However,the airflow pattern in the case with screens was more uniformly *** mean age of the air was considerably higher in the case with insect-proof screens,which in turn resulted in a reduced *** presence of an insect-proof screen resulted in a Predicted Mean Vote(PMV)of 2.79 indicating a‘hot’sensation,whereas in the other case,the comfort vote is only 1.93 indicating a‘warm’*** presence of insect-proof screens on windows reduced the air velocity and ventilation efficiency,contributing to increased thermal discomfort in the kitchen.

关键词： thermal comfort air change effectiveness insect-proof screen kitchen computational fluid dynamics age of air

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