In the WEN(power exchange network),the conventional velocity-type and volumetric power exchange equipment has a large size and high rotational speed,and at the same time,the operation with liquid is limited.The power exchange gas wave machine is a kind of equipment that realizes the direct exchange of volumetric power between high-pressure and low-pressure flow stocks by using the motion excitation wave to increase the pressure and the expansion wave to reduce the temperature and pressure.It has the advantages of simple structure,high process efficiency and excellent performance with liquid and can be used as the core equipment of the power exchange network which has the significance of popularization.Using gas dynamics theory and ways of computational fluid dynamics,firstly the working principle and performance advantages of the power exchange machine were analyzed,and then its performance was studied.The results show that the power exchange gas wave machine has good pressurization and cooling characteristics when operating with liquid,high isentropic efficiency at low expansion ratio,and the elicitation rate and low-pressure inlet flow rate increase with the increase of expansion ratio and decrease with the increase of pressurization ratio.The performance of the gas wave power exchange technology in terms of pressurization and elicitation is quantitatively analyzed,which is of great significance for the establishment of a gas thermodynamic model for power exchange based on aerodynamic processes with higher accuracy.
关键词
功交换/激波/增压/水蒸气/冷凝
Key words
work exchange/shock waves/supercharging/steam/condensation
维普
万方数据