基于地道风空气源热泵间歇散热

对基于地道风空气源热泵应用的可行性进行分析,建立了地道传热温度场的数学模型和计算的内、外边界条件,进而对数学模型进行简化处理,并采用拉普拉斯数学方法计算求解,得到空气经地下风道传热的计算公式。随后建立地道传热环境的物理模型和边界条件,并采用数值计算软件FLUENT对物理模型进行数值模拟计算,将动态传热边界条件加入求解,然后将计算所得结果与实验实际测量取得的数据进行对比分析,得出基于地道风的空气源热泵冷热源间歇散热传热的特点,以及应用地下风道传热时要注意的关键问题。这对于地道风降温技术以及基于地道风的空气源热泵系统的传热研究有一定应用价值。

Intermittent heat emission study of the temperature environment of an air source heat pump using air in an underground tunnel

The research analyzed the feasibility of using air in an underground tunnel as cold and heat sources of heat pumps, modeled building of tunnel heat transfer, obtained internal and external boundary conditions, then simplified and solved it with Laplace mathematics transform, and obtained the heat exchange formula of air passing through a tunnel. Then modeled physical building of the temperature environment and obtained boundary conditions, and used FLUENT software to numerically simulate with dynamic boundary conditions, then obtained the results and compared then with experimental data, and finally found dynamic heat transfer characteristics and some key problems of using air in an underground tunnel as cold and heat sources of heat pumps. It can provide some practical help on tunnel wind cooling technology and heat transfer, simulate calculating of using air in underground tunnel as cold and heat sources of heat pumps, and also on saving energy consumption and environmental protection research.