以超临界状态的LNG作为冷源,以工业余热作为热源的闭式Brayton循环,可以有效的利用LNG的冷(?)并回收工业余热。本文以(?)效率为评价准则,兼顾LNG冷(?)和工业余热的利用,对该循环进行了热力学分析。在分析过程中,利用以前分析所得的结论[1],选取的循环自变量数为4,针对不同的自变量、不同的LNG冷(?)和工业余热利用情况,对多种循环方案作了进一步(考虑了循环与冷、热源的匹配)较详细的热力学分析,并得出较明确的性能表达。 Using closed loop Brayton cycle with supercritical LNG as the cooling source and industrial waste heat as the heat source can effectively utilize the cold (?) Of LNG and recover the industrial waste heat. In this paper, the efficiency of (?) As the evaluation criteria, taking into account the LNG cold (?) And industrial waste heat utilization, the cycle of thermodynamic analysis. In the analysis process, using the conclusions of the previous analysis [1], the number of selected cycle variables is 4, for different independent variables, different LNG cold (?) And industrial waste heat utilization, a variety of recycling programs were made Further (taking into account the cycle and cold, heat source match) more detailed thermodynamic analysis, and come to a more clear performance expression.