Air Flow And Temperature Distribution Analysis In An Air Conditioned Car

Khor, Mei Yin (2015) Air Flow And Temperature Distribution Analysis In An Air Conditioned Car. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Air Flow And Temperature Distribution Analysis In An Air Conditioned Car 24 Pages.pdf - Submitted Version Download (339kB)

Abstract

Temperature and velocity are the environmental factors that affect the human comfort level. The purpose of this study is to determine the temperature and velocity distribution inside the passenger compartment of an air-conditioned vehicle. Computational Fluid Dynamics (CFD) simulation is carried out by using ANSYS FLUENT software. The measurements of air velocity and temperature are taken at different location of the passenger seat. The difference in distribution of air flow and temperature with and without human load inside the passenger compartment are being investigated. The results obtained from physical measurement and CFD simulation is analyzed and compared. The actual average temperature increases with number of occupants while the simulation temperature remains constant, where the largest percentage of error is 19.1 %. The simulation velocity shows highest reading at head level and decreases as flows to chest level and knee level of passengers seats. The trend of actual velocity is similar to simulation velocity, except at driver seat where the highest value is at chest level. Based on the result, recommendations and suggestions are made to improve the thermal comfort level inside the passenger compartment.

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