太阳能季节蓄热供暖系统蓄热水箱的研究与模拟计算
Study and simulation of heat storage tank of solar heating system with seasonal heat storage
摘要：
建立了太阳能季节蓄热供暖系统的数学模型，分析了该系统的能量平衡关系。以水为介质蓄热，设置季节蓄热地下水箱，对季节蓄热水箱进行了模拟计算，分析了蓄热水箱外保温层厚度与散热量及散热率的关系、水箱体积与散热损失及散热率的关系。得到保证较低散热率和成本可接受的蓄热水箱参数范围为：保温层厚度200～300 mm，水箱体积500～2 000 m3。
Abstract：
Establishes a mathematical model of solar heating system with seasonal heat storage, and analyses the energy balance relationship of this system. Takes water as heat storage medium, installs an underground tank with seasonal heat storage, and simulates and calculates the performance of the heat storage tank. Analyses the relationships between thickness of external thermal insulation layer and heat release, thickness of external thermal insulation layer and heat dissipation rate, tank capacity and heat loss, tank capacity and heat dissipation rate. Obtains the parameters of the heat storage tank with low heat dissipation rate and acceptable cost. The thermal insulation thickness is 200 mm to 300 mm, and the water tank capacity is 500 m3 to 2 000 m3.
Keywords:solar energy, seasonal heat storage, heat storage tank, heating system, thermal insulation thickness, heat dissipation rate, water tank capacity