储能科学与技术2025，Vol.14Issue(6)：2532-2539,8.DOI:10.19799/j.cnki.2095-4239.2024.1167
严寒地区相变日光温室蓄放热性能模拟研究
Simulation of the heat storage and release performance of a phase-change solar greenhouse in a severely cold area
摘要
Abstract
In this study,we explore the factors that influence and the inherent laws that govern the heat storage and release performance of phase-change solar greenhouses in cold regions.First,a full-scale model of a phase-change solar greenhouse was constructed using TRNSYS software,and its reliability and accuracy were verified through experiments.Subsequently,this model was used to investigate the effects of the structural parameters of the enclosure—such as the span of the greenhouse,the north-wall height,and the heat-transfer coefficient—as well as the parameters of the phase-change material—such as the phase-change temperature,latent heat,and phase-change material dosage—on the average air temperature and the effective accumulated temperature of the phase-change greenhouse.Finally,a nonlinear regression equation was established between the effective accumulated temperature and the aforementioned parameters using multiple regression methods within the SPSS software.The following conclusions were obtained by analyzing the data from these experiments:The effective accumulated temperature and the average air temperature both decrease as the span of the greenhouse and the north-wall heat-transfer coefficient increase,a negative correlation,and they both increase as the north-wall height,latent heat of the phase change,and phase-change material usage increase,a positive correlation.The effective accumulated temperature and the average air temperature reach their maximum values—16.63℃and 36.29℃·d,respectively—at a phase transition temperature of 23℃.A nonlinear regression equation was constructed for the effective accumulated temperature in terms of the heat-transfer coefficient of the north wall,the span of the solar greenhouse,the north-wall height,material usage,latent heat of the phase change,and phase-change temperature.This study thus provides a convenient means for the design and optimization of phase-change solar greenhouses in severely cold areas.关键词
日光温室/相变材料/蓄放热性能/有效积温/回归方程Key words
solar greenhouse/phase change materials/heat storage and release performance/effective accumulated temperature/regression equations分类
能源科技引用本文复制引用
孟凡康,彭栋坤,蔡鹏..严寒地区相变日光温室蓄放热性能模拟研究[J].储能科学与技术,2025,14(6):2532-2539,8.基金项目
2022年辽宁省教育厅基本科研项目(面上项目)(LJKMZ20220701). （面上项目）
