Mobile Air Conditioning Device

Chin, Kar Ghai (2015) Mobile Air Conditioning Device. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text Mobile Air Conditioning Device - 24 pages.pdf - Submitted Version Download (700kB)

Abstract

The motivation behind this project is to design a portable cooling system that able to control temperature in a jacket at a certain degree. In the present extreme heat situation, portable cooling system is a solution to compromise the high temperature especially during daytime. The problem to realize is how to maintain temperature underneath the jacket while minimizing the weight of the equipment and reducing power consumption upon completing this project. It is proposed that water is used as medium to transfer coldness in this project. In order to control the temperature, sensor will be installing on the system as the feedback loop so that the controller can decide an action to overcome the change in temperature. Component is compared so that the smallest size of component will use for this project in order to minimize the weight problem. A 12V thermoelectric cooler is applied as main actuator to produce cooling. Hence, the objectives of this project are to design a system that able to control temperature accurately which is light in weight for portability purpose and is less in power consumption. Two experiments test is carried out in order to achieve the objectives of the project. Experiment 1 is to test the accuracy level of feedback loop in order to maintain temperature. Experiment 2 is separate into two parts which the first part is carried out using Scilab to analyse the efficiency of the system in term of rate of heat transfer. Prototype is needed in order to analyse the efficiency of the system in term of power consumption for second part. Result shows that this cooling system have a temperature difference of 0.7 ◦C in 600s and for experiment 4.3.1 and 2.5◦C in 300s for experiment 4.3.2; while the power consumption is 11.5 watts per unit thermoelectric cooler experiment 4.3.1 and 37.85 watts per unit thermoelectric cooler for experiment 4.3.2

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