摘要
以梯形盐水太阳池为研究对象,搭建表面积2.4 m×2.4 m,底面积1.0 m×1.0 m的小型梯形盐水太阳池,基于实验数据对梯形盐水太阳池进行一维数值模拟,建立热盐双扩散离散模型,改进池底反射模型、辐射透射模型和包括表面热损、壁面热损和土壤层热损在内的详细热损失模型,通过模拟与实验结果的对比验证模型的有效性。结果表明:太阳池梯形结构可增强太阳辐射利用率,减少下对流层散热量,提高太阳池储热能力,从而提升太阳池的供热温度。
A mini trapezoidal solar ponds with surface 2.4 m×2.4 m and bottom 1.0 m× 1.0 m was constructed. Thermal performance of the trapezoidal solar pond was numerically simulated by an one-dimension model base on the experimental data. The simulation built a thermal and salt diffusion model, a modified bottom reflection and radiation transmission model, and a detailed heat dissipation model eonsidering the heat loss of the surface, the wall and the soil layer. It showed a good agreement on the experimental data and the simulation. The results showed that the trapezoidal structure contributes to enhance the utilization rate of solar radiation, reduce the heat loss of heat storage layer, and improve the ability the heat storage of solar pool, whieh can improve the heat-supply temperature of the solar pool.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第5期1227-1234,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51576029
51476105)
关键词
梯形太阳池
实验
数值模拟
热性能
trapezoidal solar pond
experiment
numerical simulation
thermal performance
