OPEN ACCESS
In light of the great soil wall sizes of solar green houses and the low land utilization rate of solar greenhouses in China, this paper carries out a temperature field experiment in a solar greenhouse in order to understand the distribution of temperature field in the greenhouses in Central Hebei region. On the basis of the experiment, this paper establishes a numerical model of the temperature field in the solar greenhouse using the CFD software, and optimizes the wall structure of the greenhouse by the numerical simulation of different heights and thicknesses. The results can provide technical reference for the construction of new-type energy-saving solar greenhouses.
greenhouse, temperature field, experiment, CFD, wall optimization
This paper was supported by Hebei Province key research and development plan project (18227209D); Science and Technology research project of Hebei Province University (ZD2018209).
[1] Li M, Zhou CJ, Wei XM. (2015). Thickness determination of heat storage layer of wall in solar greenhouse. Transactions of the Chinese Society of Agricultural Engineering 31(2): 177-183. https://doi.org/10.3969/j.issn.1002-6819.2015.02.025
[2] Peng DL, Zhang Y, Fang H, Yang QC, Wei LL. (2014). MATLAB simulation of one-dimensional heat transfer and heat flux analysis of north wall in Chinese solar greenhouse. Journal of China Agricultural University 19(5): 174-179. https://doi.org/10.11841/j.issn.1007-4333.2014.05.24
[3] He F, Zhou CJ. (2015). Analysis on test of wall temperature distribution and heat flux in solar greenhouse. Northern Horticulture (10): 58-61. https://doi.org/10.11937/bfyy.201510013
[4] Xu GY, Zhou CJ. (2004). Performance testing and analysis on different insulation walls of sunlight greenhouse. Journal of Huazhong Agricultural University (z2): 62-66. https://doi.org/10.3321/j.issn:1000-2421.2004.z2.015
[5] Yang JJ, Zou ZR, Zhang Z, Wang YB, Zhang ZX, Yan F. (2009). Optimization of earth wall thickness and thermal insulation property of solar greenhouse in Northwest China. Optimization of earth wall thickness and thermal insulation property of solar greenhouse in Northwest China 25(8): 180-185. https://doi.org/10.3969/j.issn.1002-6819.2009.08.033
[6] Tong G, Li B, David M, Yamaguchi T. (2007). Preliminary study on temperature pattern in China solar greenhouse using computational fluid dynamics. Transactions of the Chinese Society of Agricultural Engineering 23(7): 178-185. https://doi.org/10.3969/j.issn.1002-6819.2007.7.035
[7] Zhang LH, Zhang F, Liu S, Xu L. (2010). Three-dimensional non-steady-state simulation of sunken cob wall greenhouse indoor temperature field. ACTA Energiae Solaris Sinica (8): 965-971.
[8] Chen RS. (2004). Design essentials of daylighting and heat preservation in solar greenhouse. Xinjiang Agricultural Mechanization (3): 51-53. https://doi.org/10.3969/j.issn.1007-7782.2004.03.037
[9] Li XF, Chen QY. (2004). Effect of gable wall on the heat gain from direct solar radiation in sunlight greenhouse. Transactions of the Chinese Society of Agricultural Engineering 20(5): 241-245.
[10] Li XZ, Hao WX. (2016). Test and analysis of temperature field with greenhouse soil wall in the middle area of Hebei. Journal of Agricultural University of Hebei 39(6): 101-106.
[11] Peyrac C, Lefebvre F, Westphal O, Gornet L. (2016). Comparison of fatigue limits obtained on thermoplastic composites from SN curve & self-heating method. Revue des Composites et des Materiaux Avances 26(1): 115-126.
[12] Camaraza-Medina Y, Khandy NH, Carlson KM, Cruz-Fonticiella OM., García-Morales OF, Reyes-Cabrera D. (2018). Evaluation of condensation heat transfer in air-cooled condenser by dominant flow criteria. Mathematical Modelling of Engineering Problems 5(2): 76-82. https://doi.org/10.18280/mmep.050204
[13] Zhang C, Guo Q, Sun J, Liu C. (2018). Comparative analysis for heat transfer performance of heat exchanger single tube model with and without plug-in. Chemical Engineering Transactions 66, 301-306. https://doi.org/10.3303/CET1866051