期刊
INDOOR AND BUILT ENVIRONMENT
卷 30, 期 8, 页码 1211-1225出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1420326X20945750
关键词
Kitchen fumes; Ceiling radiation; Radiant cooling; Thermal environment; Indoor airflow; Temperature distribution
The heat radiation in a residential kitchen was simulated using CFD to evaluate the cooling effect of a radiant cooling ceiling panel and the pollution dispersion by the range hood and the air extraction system. The simulation results showed that the pollutant concentration in the kitchen during cooking was much lower than the Chinese standard criteria, and the radiant cooling in the ceiling played a significant role in maintaining a comfortable and healthy environment.
The heat radiation in a residential kitchen was simulated by CFD (Computational-fluid-dynamics) to evaluate the cooling by a radiant cooling ceiling panel and pollution dispersion by the range hood and the air extraction system. The kitchen has a 2-hobs stove and a fume hood for removing waste heat and fumes. The simulation was validated by measurements in a domestic kitchen in a home in Changsha, China, where summer temperature is generally about 33 degrees C and often over 35-42 degrees C. The simulation results show that the pollutant concentration in the kitchen during cooking was much lower than the Chinese standard criteria of GB/T18883-2002. A standard turbulence model was used, which indicated satisfactory distribution of temperature and airflow in the kitchen. The indoor airflow velocity was low. The airflow temperature when both hobs were used was slightly higher by 3-4 degrees C than when a single hob was used. The temperature in the kitchen during cooking was about 28 degrees C, which was a degree lower than the living-room temperature, thus maintaining a comfortable thermal and healthy environment. The radiant cooling in the ceiling was shown to be a significant contributing factor. The ring suction type range hood has a sufficient capacity to remove the kitchen fume contaminants.
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