模擬結果顯示，相同壓力下之0.305mm閥片位移量較0.25mm低4.1%，因位移減少，閥片閉合時，高壓端逆流減少，使得效率提升。經實驗驗證，性能測試結果0.305mm閥片提升EER能量效率比 (Energy Efficiency Ratio)1.8%；本研究藉由模擬可合理的解釋實驗結果。 ;Mollier chart of R410A refrigerant is used to obtain the corresponding theoretical suction temperatures, discharge temperatures, densities and pressures at different working conditions. Then the corresponding volumes and pressures at different crank angles are calculated based on its thermodynamic properties.
ANSYS is used to simulate the valve displacement of the rotary compressor under different operation processes. Under the fix of valve material mechanical properties (density, Young′s modulus and Poisson′s ratio) and top flange parts, by changing the valve thickness only, the instantaneous valve displacement and the compressor performance caused by the difference between internal and external pressures of the compressor chamber.
Simulation shows that the displacement of 0.305mm valve is lower by 4.1% compared with that of 0.25mm valve under the same pressure loading. The experimental test verifies that 0.305mm valve increases the energy efficiency ratio EER (Energy Efficiency Ratio) by 1.8%. The simulated and experimental results are consistent each other.
