CFD ANALYSIS OF THERMAL COMFORT AND AIR QUALITY INDICES WITHIN AN AIR-CONDITIONED MOBILE COMMUNICATION VEHICLE

摘要

The interior of mobile communication vehicles is relatively compact, and various collocated communication equipment producing heat in the compartment should be effectively distributed. If the air outlets of air-conditioning systems are not designed with a proper location, operators will feel uncomfortable in those working environments. In this investigation, the computational fluid dynamics (CFD) method was used to simulate the flow field and the temperature distribution inside the compartment of a mobile communication vehicle under different configurations of air-conditioning units. The three-dimensional thermal-flow field was solved by steady incompressible Reynolds-averaged Navier-Stokes equations (RANS) with the control volume method. The buoyancy effect was assumed with the Boussinesq hypothesis, and the turbulent model was the standard k—e turbulence model. The indices such as predicted mean vote (PMV), predicted percentage of dissatisfied (PPD), percentage of dissatisfied due to draught