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本文从太阳灶煮水工况下热平衡分析入手,建立了太阳灶工作时的非稳态能量传输的微分方程式,并给出了解答,方程解展示了太阳灶装置对不同辐射入的动态响应。通过对方程解的分析,推导了瞬时效率,过程效率,瞬时功率,过程平均功率等热性能参数的计算公式,拟定了太阳灶装置热性能的合理测试方案,以及如何将测试数据整理成效率特性方程等。
Starting from the analysis of heat balance in the condition of boiling water in the solar cookers, this paper established the differential equation of unsteady energy transfer in the work of solar cookers, and gave the solution. The equation shows the dynamic response of solar cookers to different radiation inputs. Through the analysis of equation solution, the calculation formulas of thermal performance parameters such as instantaneous efficiency, process efficiency, instantaneous power and process average power are deduced. The reasonable test scheme of thermal performance of solar cooker is drawn up and how to sort the test data into efficiency characteristics Equation and so on.