Microclimate Variations with Wall Configurations for Chinese Solar Greenhouses

Abstract:

Five greenhouses with different typical wall configurations were studied, including the hollow brick wall (HB), clay brick wall composed of mural column (MCCB), wall composed of fly ash air block brick (FAABB), clay brick wall composed of plum small hole column (PSHCCB), common clay brick wall with Styrofoam wall outside (SCB) to find out the effects of the north walls on the greenhouse microclimate. The interior temperature and RH environment, as well as the heating rate, cooling rate and the correlation with the outside temperature, were tested and compared, finding that the greenhouse with FAABB exhibits the optimal temperature and RH environment, and also the highest thermal stability. The findings may provide references for greenhouse construction and insulation measures.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 931-937
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.931
• Online since: February 2013
• Authors: Hui Xu, Lan Jie Zhao, Guo Hong Tong, Yi Qing Cui, Tian Lai Li
• Keywords: Greenhouse, RH, Temperature, Wall Configurations

References

[1] Chen Qingyun. Progress of practice and theory in sunlight greenhouse [J]. Journal of Shanghai Jiaotong University Agricultural Science, 2008, 26(5): 343－350. (in Chinese).

[2] Chen Duansheng, Zheng Hanshan, Liu Buzhou. Comprehensive study on the meteorological environment of the sunlight greenhouse: I 1. Preliminary study on the thermal effect of the wall body and covering materials [J]. Transactions of the CSAE, 1990, 6(2): 77－81. (in Chinese).

[3] Kang Shuhua, Dai Yadong, Fang Sidong, et al. Study on energy-saving solar greenhouse wall materials and structure [J]. Chinese Vegetable, 1992, (6): 1-5. (in Chinese).

[4] Li Xiaofang, Chen Qingyun. Effects of different wall materials on the performance of heat preservation of wall of sunlight greenhouse [J]. Chinese Journal Eco-Agriculture, 2006, 14(4): 185－189. (in Chinese).

[5] Tong Guohong, Wang Tieliang, Bai Yikui, et al. Heat transfer property of wall in solar greenhouse [J]. Transactions of the CSAE, 2003, 19(3): 186－189. (in Chinese).

[6] Ma Chengwei, Lu Hai, Li Rui, et al. One-dimensional Finite difference model and numerical simulation for heat transfer of wall in Chinese solar greenhouse [J]. Journal of Shanghai Jiaotong University Agricultural Science, 2010, 26(6): 231-237. (in Chinese).

[7] Bouchair A. Steady state theoretical model of fired clay hollow bricks for enhanced external wall thermal insulation [J]. Building and Environment 43 (2008) 1603–1618.

DOI: 10.1016/j.buildenv.2007.10.005

[8] del Coz Dı´az J.J. ，Garcı´a Nieto P.J., Betego´n Biempica C. , Prendes Gero M.B. Analysis and optimization of the heat-insulating light concrete hollow brick walls design by the finite element method [J]. Applied Thermal Engineering 27 (2007).

DOI: 10.1016/j.applthermaleng.2006.10.010

[9] Yang Dongyan, Guo Wenzhong, Zhang Lijuan, et al. Analysis of temperature and light intensity in different solar greenhouse in winter. (in Chinese).