Abstract
Based on an engineering training centre, a scaled model laboratory with a geometric ratio of 1:4 was established. The indoor thermal environment and stratified air-conditioning load (SACL) of the scaled model laboratory with low-sidewall air supply was experimentally studied. The heat gain through the building envelope was simulated in the form of step thermal disturbance by the electric heating film attached to the walls and roof. The lab was commissioned by a series of pre-experiments, and seven experimental cases were conducted with different exhaust ratios and indoor heat source heights. The experimental results indicated that when the exhaust ratio was increased from 0 to 21.63%, the internal wall surface temperature was reduced by 2.85 °C, the indoor air temperature in the air-conditioned area was reduced by 0.84 °C and the SACL was reduced by 18.90%.
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References
Gordon, R.L., Bagheri, M.: Verification of Stratified Air Condition Design. ASHRAE Report 388RP (1986)
Li, Y., Sandberg, M., Fuchs, L.: Vertical temperature profiles in rooms ventilated by displacement: full-scale measurement and nodal modelling. Indoor Air 243(2), 225–243 (1992)
Nielsen, PV.: Temperature distribution in a displacement ventilated room. Proc. Roomvent 323–330 (1996)
Causone, F., Corgnati, S.P.: Experimental evaluation of heat transfer coefficients between radiant ceiling and room. Energy Build. 41(6), 622–628 (2009)
Huang, C., et al.: Measurements of indoor thermal environment and energy analysis in a large space building in typical seasons. Build. Environ. 42(5), 1869–1877 (2007)
Tovar, R., Linden, P.F.: Hybrid ventilation in two interconnected rooms with a buoyancy source. Sol. Energy 81(5), 683–691 (2007)
Wang, H.D., et al.: On the calculation of heat migration in thermally stratified environment of large space building with sidewall nozzle air-supply. Build. Environ. 147, 221–230 (2019)
Liu, P., et al.: Evaluation of buoyancy-driven ventilation in atrium buildings using computational fluid dynamics and reduced-scale air model. Build. Environ. 44(9), 1970–1979 (2009)
Gao, J.: Research of the Theory of Thermal Stratification in Buildings and its Applications. Doctoral degree thesis, Harbin Institute of Technology (2007)
Acknowledgements
The project is financially supported by the National Natural Science Foundation of China (51278302, 51508326) and the Shanghai Natural Science Foundation (16ZR1423200).
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Huang, C. et al. (2020). Experimental Study on Thermal Environment and Stratified Air-Conditioning Load of Scaled Model Laboratory with Low-Sidewall Air Supply under Step Thermal Disturbance. In: Wang, Z., Zhu, Y., Wang, F., Wang, P., Shen, C., Liu, J. (eds) Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019). ISHVAC 2019. Environmental Science and Engineering(). Springer, Singapore. https://doi.org/10.1007/978-981-13-9520-8_62
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DOI: https://doi.org/10.1007/978-981-13-9520-8_62
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