DOI: 10.5061/dryad.g1jwstqx8
title: Study on optimization effect of south roof curve of Chinese solar greenhouse

description: To maximize the use of solar energy and increase the utilization area of
 Chinese solar greenhouse (CSG) land, a solar greenhouse radiation model
 was established based on previous studies, combining with the law of solar
 movement, meteorological data, and optical properties of materials. The
 model is verified by selecting the measured data of typical sunny days.
 The results show that the optimization of the south roof curve of the
 greenhouse can not only increase the land-use area in the greenhouse but
 also increase the solar energy captured by the solar greenhouse. And the
 CSG in the greenhouse, the land-use area in the greenhouse increased to 42
 m2, the lighting rate of the south roof, and the lighting rate of the
 ground increased 15.2% and 0.78% respectively. The amount of interception
 in the back wall of the greenhouse was reduced by 0.67%, and that in the
 greenhouse was increased by 2.22%. The optimal structure CSG in Shenyang
 (span 9 m) is the optimal shoulder height position, obtain the best
 shoulder height position of the greenhouse, the level of front and bottom
 Angle is 0.7 m, and the height is 2 m. Combined with the actual greenhouse
 construction demand, the optimal curve function Y1 and Y2 of the south
 roof of the greenhouse are calculated. This paper verifies the structural
 safety of the front roof of the greenhouse after the renovation, and shows
 that increasing the shoulder height can also increase the structural
 stability of the greenhouse and strengthen the structural safety of the
 greenhouse.
description: To maximize the use of solar energy and increase the utilization area of
 Chinese solar greenhouse (CSG) land, a solar greenhouse radiation model
 was established based on previous studies, combining with the law of solar
 movement, meteorological data, and optical properties of materials. The
 model is verified by selecting the measured data of typical sunny days.
 The results show that the optimization of the south roof curve of the
 greenhouse can not only increase the land-use area in the greenhouse but
 also increase the solar energy captured by the solar greenhouse. And the
 CSG in the greenhouse, the land-use area in the greenhouse increased to 42
 m2, the lighting rate of the south roof, and the lighting rate of the
 ground increased 15.2% and 0.78% respectively. The amount of interception
 in the back wall of the greenhouse was reduced by 0.67%, and that in the
 greenhouse was increased by 2.22%. The optimal structure CSG in Shenyang
 (span 9 m) is the optimal shoulder height position, obtain the best
 shoulder height position of the greenhouse, the level of front and bottom
 Angle is 0.7 m, and the height is 2 m. Combined with the actual greenhouse
 construction demand, the optimal curve function Y1 and Y2 of the south
 roof of the greenhouse are calculated. This paper verifies the structural
 safety of the front roof of the greenhouse after the renovation, and shows
 that increasing the shoulder height can also increase the structural
 stability of the greenhouse and strengthen the structural safety of the
 greenhouse.