Performance Analysis and Selection of Chinese Solar Greenhouses in Xinjiang Desert Area

Xiao Wu, Hong Li, Siyu Sang, Anhui He, Yimei Re and Hongjun Xu ()
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Xiao Wu: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
Hong Li: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
Siyu Sang: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
Anhui He: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
Yimei Re: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
Hongjun Xu: College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China

Agriculture, 2023, vol. 13, issue 2, 1-14

Abstract: This study aims to provide information and theoretical support for the development planning of facility agriculture in desert areas. Using sensor monitoring, USB cable, and computer connection record, we measured the temperature, humidity, and heat transfer distribution of ordinary brick wall greenhouse (G1), composite wall greenhouse (G2), and assembled solar greenhouse (G3) in the Aksu desert area of Xinjiang. The results showed that G3 had the highest average temperature among the three types of greenhouses in the cold season; no difference was detected between G1 and G2 in the night temperature, while G3 has the characteristics of fast heating and cooling. On a sunny day, the heating rate of G1, G2, and G3 is 3.62, 4.4, and 4.77 °C/h, respectively. The cooling rate for G1 is 2.66 °C/h; 2.96 °C/h for G2; and 3.93 °C/h for G3. The heating rate for each greenhouse is nearly identical when it is cloudy outside, and the cooling rate of G1, G2, and G3 is 2.71, 4.2, and 4.34 °C/h, respectively. Moreover, the G3 north wall’s thermal insulation performance has clear advantages. Its wall surface can reach a temperature of 59.1 °C (G1 is 42.7 °C and G2 is 41.6 °C). This study showed that G3 possesses the virtues of effective thermal insulation; the rear wall has a small footprint and preserves the arable land; it also achieves the necessary environmental conditions for crop growth without the use of auxiliary heating.

Keywords: solar greenhouse; north wall; light and thermal environment; assembled solar greenhouse (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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