[1] Huang Chen, Liu Wen, Zou Zhijun, Ren Rong, et al. Experimental study on thermal environment in large-space buildingwith low sidewall air supply [J]. Journal of Southeast University (English Edition), 2010, 26 (2): 270-273. [doi:10.3969/j.issn.1003-7985.2010.02.028]

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Experimental study on thermal environment in large-space buildingwith low sidewall air supply()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 2

Page:

270-273

Research Field:

Architecture

Publishing date:

2010-06-30

Info

Title:

Experimental study on thermal environment in large-space buildingwith low sidewall air supply

Author(s):

Huang Chen;  Liu Wen;  Zou Zhijun;  Ren Rong;  Chen Lei

School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China

Keywords:

large space building;  low sidewall air supply;  vertical temperature gradient;  thermal environment

PACS:

TU119;TU831

DOI:

10.3969/j.issn.1003-7985.2010.02.028

Abstract:

The thermal environmental characteristics are experim-entally studied in terms of different air supply volumes and outdoor meteorological parameters in a large-space building which is air conditioned with a low sidewall air supply.The experimental results show that the indoor vertical temperature distributions under different condition are similar.The maximum vertical temperature difference(MVTD)is up to about 20 ℃, and it linearly changes with the sol-air temperature.The indoor vertical temperature gradients(VTGs)in the upper, central and lower zones are different.The influence of the sol-air temperature on the VTGs in the upper and the lower zones is greater than that in the central zone.The characteristics of the VTGs in the three zones affected by the air supply volume are the same as those affected by the sol-air temperature.Besides, because of the small air velocity, the predicted mean vote(PMV)on comfort in the occupied zone is slightly high and the air temperature difference between the head and the ankle is usually more than 3 ℃.

References:

[1] Wu X P.Study on the impact on energy-saving in large space building with different airflow form [J].Fluid Machinery, 2000, 28(11):48-49.(in Chinese)
[2] Li Q M.Displacement ventilation:principles, designed applications [J].HV& AC, 2000, 30(5):41-46.(in Chinese)
[3] Chen M, Ni B.Displacement ventilation system design of Shanghai Stadium [J]., HV& AC, 2000, 30(5):5-8.(in Chinese)
[4] Novoselac A, Srebric J.A critical review on performance and design of combined cooled ceiling and displacement ventilation systems [J].Energy and Buildings, 2002, 34(5):497-509.
[5] Yu W J, Cheong K W D, Tham K W, et al.Thermal effect of temperature gradient in a field environment chamber served by displacement ventilation system in the tropics [J].Building and Environment, 2007, 42(1):516-524
[6] Huang C, Cai N, Gao X L.Thermal stratification level of low sidewall air supply with air-conditioning system in large space [J].Journal of Central South University of Technology:English Edition, 2009, 16(S1):166-170.
[7] Parsons R.2005 ASHRAE handbook:fundamentals [S].Atlanta, GA, USA:W Stephen Comstock, 2005.

Memo

Memo:

Biography: Huang Chen(1958—), female, doctor, professor, huangc@usst.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.50478113), the Leading Academic Discipline Project of Shanghai Municipal Education Commission(No.J50502).
Citation: Huang Chen, Liu Wen, Zou Zhijun, et al.Experimental study on thermal environmental in large space building with low sidewall air supply[J].Journal of Southeast University(English Edition), 2010, 26(2):270-273.

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