Numerical simulation of aircraft cabin thermal comfort under heating operation of bridge load air conditioner

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Numerical simulation of aircraft cabin thermal comfort under heating operation of bridge load air conditioner

LIN Jiaquan, LIU Mingliang

（College of Electronic Information and Automation, CAUC, Tianjin 300300, China）

Received:2018-03-04 Revised:2018-04-25 Online:2019-04-26 Published:2019-05-10

Abstract

Abstract: The 3D models of B737 aircraft second class cabin and human body are established using CFD, simulating the air flow field inside cabin under heating operation of bridge load air conditioner in cold winter. The influence of air supply velocity on temperature field, wind velocity field and thermal comfort are analyzed. Take ADPI as the evaluating indicator of thermal comfort in cabin, calculating the inside ADPI using values of temperature and wind velocity at sample points. Point tracking and Gaussian curve fitting of ADPI under different air supply velocities are conducted, obtaining the function relationship between ADPI and air supply velocity, confirming the range of air supply velocity with the requirement of thermal comfort, providing theoretical basis for the control and adjustment of bridge load air conditioner.

Key words: bridge load air conditioner, B737 aircraft cabin, CFD, thermal comfort, ADPI, fitting curve

CLC Number:

LIN Jiaquan, LIU Mingliang. Numerical simulation of aircraft cabin thermal comfort under heating operation of bridge load air conditioner[J]. .

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