Valve dynamic analysis of a hermetic reciprocating compressor

Valve dynamic analysis was analyzed only for structural part or fluid part individually. In this work, ADNIA, FSI was introduced to solve the valve dynamics considering heat transfer. In this study we had performed the experiments to know the characteristics of valve dynamics and can obtain the dynamic behavior of valves and pressure-volume diagram. And then, fluid structure interaction [FSI] simulation was performed. It was conformed that the fluid structure interaction can explain the realistic valve dynamic behaviors. The advantage using FSI is temperature and velocity profiles can be obtained. These data were difficult to get from the experiment, because of the inferior conditions inside the cylinder. With these obtained results one of the important factor, efficiency can be calculated. We had applied the shape optimization technique using sequential quadratic programming to get the optimal design of suction reed valve.