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基于实用施密特循环理论,在考虑流动阻力损失的基础上,建立太阳能斯特林热机的循环热损失及热效率数学模型.运用碟式太阳能斯特林热机的一个实例,着重分析了太阳能斯特林热机的各种热损失及热效率.研究结果表明:在各种热损失中,导热损失和穿梭传热损失所占的幅度相对较大,其中导热损失最显著.各种热损失与太阳能斯特林发动机的多种结构参数和设计性能参数密切相关,增加加热管内壁的温度,降低转速值可提高循环热效率.当热腔的温度大于750 K时,太阳能斯特林热机的循环热效率值将在卡诺效率值的65%～80%之间浮动.
Based on the practical Schmitt cycle theory, a mathematical model of cyclic heat loss and thermal efficiency of solar Stirling heat engine is established considering the loss of flow resistance.An example of the disk solar Stirling engine is given, The results show that: in a variety of heat losses, heat loss and shuttle heat loss accounted for relatively large amplitude, of which the most significant heat loss.A variety of heat loss and solar energy The various structural parameters of Lin engine are closely related to the design performance parameters. Increasing the temperature of the inner wall of the heating tube and decreasing the rotation speed can increase the thermal efficiency of the cycle.When the temperature of the thermal chamber is more than 750 K, the cycle thermal efficiency of the solar Stirling engine will be between Carnot efficiency of the value of the floating between 65% to 80%.