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通过建立双工质循环发电系统的计算模型和理论分析系统热力过程,对双工质循环发电系统中蒸发器的最佳蒸发温度以及蒸发器和凝汽器的最佳端部温差进行了优化选择。计算结果表明,最佳蒸发温度除与热水初温和冷凝温度有关外,也与端部温差有关,并随之增加而减少。在热水初温130℃及冷凝温度48℃下,得到蒸发器及凝汽器的端部温差优化值均为6℃,对应的最佳蒸发温度为87℃。
Based on the calculation model and theoretical analysis of the thermodynamic process of the dual-cycle power system, the optimal evaporating temperature of the evaporator and the optimal temperature difference between the evaporator and the condenser are optimized. . The calculation results show that the optimal evaporating temperature is related to the temperature difference of the end and the decrease of the initial temperature and condensing temperature of hot water. At the initial temperature of hot water of 130 ℃ and the condensing temperature of 48 ℃, the optimum temperature of the end of the evaporator and the condenser is 6 ℃, corresponding to the optimum evaporation temperature of 87 ℃.