传热学和热力学本属同一学科，却因研究热量传递和热功转换对象的不同，各自形成独立体系，导致换热器和热力系统优化使用不同理论，然而实际传热过程要消耗功，热与功转换含有传热，二者不能分离。因此，本项目选择传热学和热力学共性理，及其应用于换热器和热力系统的优化为研究宗旨。研究路线是，根据热能中包含有做功的有效能，功能是热能传递的驱动能源和可以转化为热能的特点，抓住有效能在能量传输和转化过程中变化的主线，建立能势理论，揭示传热和热与功转化的共同本质，用等效热力变换分析法和等效热力温度，把传热或有不可逆损失的实际热力/制冷系统，变换为两定温源传热或等效的卡诺热机正/逆循环系统进行分析，并且使传热与热功转化问题可以互换；据此理论，并用兼顾收益、消耗功、成本多目标协同方法，优化换热器；藉对比态法，建立工质与热力循环等效热力温度的关系，分析和推算系统变工况性能。本项目研究成果有全局性学术意义和重要应用价值。

Heat transfer and thermodynamics within the same discipline, but because of the different research objects, the heat transfer study heat transfer, and the thermodynamic study thermal power conversion, each forming an independent system, So resulting in heat exchangers and thermal systems optimization respectively using different theoretical. However, actual heat transfer process consumes power, thermal conversion process contains heat transfer, the two processes can not be separated.　Therefore, the project chose to heat transfer and thermodynamics common theory, its application in the optimization of the heat exchanger and heat system for research purposes. 　　 Line of research is based on the heat energy contained in the energy efficient, however, the effective energy is the driving force for heat transfer, and effective energy and can be converted to heat characteristics, to seize effective energy the mainline of change in the process of heat transfer and energy conversion, Establishing energy potential theory, reveals the common nature of the heat transfer and thermal energy and power conversion, using the equivalent thermal conversion analysis and equivalent thermodynamic temperature, heat transfer or irreversible loss of the actual heat / cooling system, to transform two the fixed temperature heat source heat transfer problems or the equivalent Carnot heat engine circulatory problems analyzed, and the heat transfer and the thermal power conversion can be interchanged; According to this theory, and taking into account income, power consumption, cost and other target synergistic approach to optimize the heat exchanger; borrow the contrast state law to establish the relationship between the equivalent thermodynamic temperature of the working fluid and thermodynamic cycle, analysis and projected changes in operating conditions of the system performance . The research project has the overall academic significance and value.