新型直升机热泵空调系统驾驶舱热控性能

The helicopter often faces low temperature environment in the flight process, in order to ensure the safety of the pilots and equipment, the cockpit needs to be heated. The traditional environmental control mode of engine bleeding air will cause engine compensation, the application of heat pump air conditioning in helicopter environmental control system can reduce compensation while meet the demand of helicopter cooling and heating, the heat pump air conditioning system takes lube oil waste heat as heat source, and heat the cockpit with heat pump cycle. However, the operating temperature range greatly limits its application in helicopters. Therefore, a new type of helicopter heat pump air conditioning system with waste heat recovery is proposed, and the transient response of cockpit temperature and system performance of the system are studied by establishing the dynamic simulation model of the system. The results show that the new heat pump air conditioning system can meet the heat demand of helicopter in low temperature environment, and its heating capacity and heating efficiency are higher in the working temperature range. The low temperature performance of the system is improved, and the adaptability of helicopter in low temperature environment is significantly improved.