热声热机中液相工质的选择与计算

Selection of Working Liquid and Its Calculation in Thermoacoustic Engines

分析了热声热机中使用的液相工质的选择方法 ,研究了适合于热声热机使用的液相工质的热力学性质和热物理性质的计算方法 ,并对液相工质R2 18进行了数值计算 ,计算结果与已有的实验结果相符合 ,计算方法和结果具有令人满意的精度 ,研究结果可用于低品位热源如太阳能驱动的热声热机的研究与开发 .

The method of selecting working liquid in thermoacoustic engines is presented. The calculations of thermodynamic and thermophysical properties of working liquid are described and studied. The numerical calculation of working liquid R218 is discussed. The calculated results are in good agreement with the experimental data available. The method of calculation and results are with satisfactory precision. The results obtained in this paper can be used for the research and development of thermoacoustic engines thermally driven by low grade heat source such as solar energy.