Simulation research of Liquefied Natural Gas cold energy recovering cycles in refrigerated truck

摘要

LNG can provide plenty of cold energy when it is used as the fuel. The cold energy can be recovered and utilized in vehicle refrigeration. The basic principles of LNG refrigerated truck and the design of cold recovery system were described. In order to research the cooling performance of LNG refrigerated truck, a simulation model was established. The effects of the glycol inlet temperature, the glycol and natural gas flow rates, wind speed and the system pressure on the cooling capacity and air outlet temperature were analyzed. The results show that ethylene glycol flow is an important factor on system performance and LNG cold energy recovery is suitable for the refrigerated truck.