以目标为导引的“工程热力学”教学思路分析

Analysis on Teaching Ideas of Engineering Thermodynamics Course Guided by Aim

“工程热力学”涉及热功转换的相关基础理论、工质热物性、热机工作原理,以及提高热工设备效率的理论途径和方法,是一门能源动力、航空航天、机械相关专业的重要专业基础课,主要是从理论层面抽象出热机工作的循环方式,开展热机循环参数优化研究,进而构建热机设计分析方法。虽然涉及的理论知识和定理定律较多,但在开展“工程热力学”教学的过程中,尤其是面对以各类热机为专业目标的工科专业学生时,以热机循环优化为目的,将相关基础理论和储备知识点有机结合,合理分配学时,组织教学内容,使学生不仅牢固掌握繁杂的知识点,更具备利用所学热工理论知识解决实际热机循环分析的能力,进而初步具备解决一般工程应用的能力,大幅提升教学效果。

The Engineering Thermodynamics course is an imperative professional course for the related majors of energy and power engineering, aerospace engineering and machinery engineering. It involves the basic theories of heat-working transformation, the thermodynamic properties of medium, the working principle of heat engines and the theoretical method to improve the efficiency of thermal equipment. The origin and development of this course are abstracting the theoretical cycle mode of the heat engine and making the optimization research of the heat engine cycle parameters, then integrating it into the heat engine design analysis method. Although there are many theoretical knowledge and theorems involved, in the teaching process of the course, especially when facing engineering students with various types of heat engines as their professional goals, it is advised to take the optimization of heat engine cycle as the goal, integrate organically the basic theory with the reserved knowledge points, allocate class hours reasonably and organize teaching content. Thus students not only have a firm grasp of complex knowledge points, but also have the ability to use the theoretical knowledge of thermal engineering to solve the actual heat engine cycle analysis, and general engineering applications, which can increase the teaching efficiency dramatically.