The Effectiveness Of Using Phase Change Material (PCM) In Reducing Car Interior Temperature During Day-Time

Ne'mat, Muhammad Najib Faiz (2016) The Effectiveness Of Using Phase Change Material (PCM) In Reducing Car Interior Temperature During Day-Time. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) The Effectiveness Of Using Phase Change Material (PCM) In Reducing Car Interior Temperature During Day-Time.pdf - Submitted Version Download (786kB)

Abstract

During day-time, when a car is parked facing the sun, the driver feels extremely discomfort especially in a few minutes after entering his or her car. Heat trap in car interior creates high temperature enviroment to certain extent some people experience headache and diziness. More enviromentally and user friendly solution must be taken in considerations concerning thermal comfort of car drivers and passengers. This study, therefore, attempted to reduce car interior temperature by using phase change materials (PCM). PCM is a material that can absorb, store and release latent heat of fusion when it change phase from solid to liquid or vice versa. PCM functions by storing cool energy which is available over-night within the PCM and later the stored energy is used to absorb the internal heat gains during day-time thus cooling the car interior space. Among various kind of PCM, paraffin possess many desirable properties such as high heat of fusion and chemically inert which make it promosing PCM for passive cooling applications. Differential Scanning Calorimeter (DSC) measurement determined that the melting temperature and heat of C and 127.3kJ/kg, respectively. However, paraffin needs to be encapsulated in order to prevent leakage during melting process. Three encapsulation method for the PCMi,e,; by plastic capsule, by aluminum casing and aluminum foil, were investigated. The effectiveness of the encapsulation methods in reducing temperature was determined by measuring the temperature change in a car interior model. It was found that when aluminum casing C when no PCM used. The PCM that encapsulated in aluminum casing most probably underwent phase change process when temperature rised while absorbing the heat. With futher improvement, PCM would technically viable in car interior cooling technology.

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