THE DESIGN STUDY OF MVAC FOR SUBTROPICAL COUNTRIES BADMINTON HALL: THE NUMERICAL APPROACH

The present paper describes the air velocity profile of MVAC using a micro-perforated fabric duct for badminton hall applications. The study has been conducted by FLUENT CFD code. The present simulation discusses the air velocity profile of the original design of the micro-perforated fabric duct and suggests the improvement of the design to fulfill BWF requirements. The flow regime was turbulent with incompressible flow since the air velocity was estimated very slow. The air ambient is set as 33°C and the wall heat convection was set as 3W/m2K. The result shows that the original design of MAVC was unable to fulfill BWF performance. Thus, the modified MVAC with the half-round micro-perforated fabric duct has been proposed. ACH also needs to be reduced. The result shows that the average plane air velocity at a height of 0.5m increases from 0.15m/s to 0.3m/s as ACH increases from 1.5 to 3.0. At the same plane height and ACH increment, the plane air temperature reduces to 22.7°C. The half-round micro-perforated fabric duct at Flow arrangement 1 for ACH of 2.5 shows the best MVAC design as it fulfills BWF requirements for air velocity and temperature