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The comfort of passenger in the civil aviation aircraft has always been the focus of attention of airliner researchers and passengers. The most important comfort problem is caused by the temperature inside the cabin. Further improving the thermal comfort of passenger is an effective measure to improve the market competitiveness of civil aviation aircraft. Through the test of actual flights in the summer, it is found that in the cabin of the civil aircraft on the South-North flight route, due to the different intensity of solar radiation on both sides of the sunny and the shady, the temperature distribution inside the cabin is not uniform under the traditional uniform air supply temperature regulation mode, especially the maximum average temperature difference around the windows on both sides is as high as 20 degrees C. For the passengers around the windows, the temperature distribution inside the cabin is not uniform. Thermal comfort varies greatly, which brings great discomfort to passengers. Therefore, this paper put forward a new method of thermal comfort control in compartment of civil aircraft. According to the actual temperature changes in compartment, the air supply temperatures on both sides of the sunny and the shady are adjusted separately, instead of adopting the traditional unified air supply mode. It is verified and analyzed by CFD modeling and simulation method. The results show that the compartment thermal comfort control method can make the temperature difference between the two sides of civil aircraft reduce. The passenger thermal comfort PMV value is controlled at about 0.5, which can satisfy the passenger's requirements for thermal comfort.
Inspec keywords: air conditioning; temperature control; computational fluid dynamics; ergonomics; travel industry; aircraft; energy conservation; temperature distribution
Subjects: Thermal variables control; Fluid mechanics and aerodynamics (mechanical engineering); Heat and thermodynamic processes (mechanical engineering); Applied fluid mechanics