Energy And Economic Assessment Of Using Temperature Controller In Air-Conditioned Room

Ang, Ke Xin (2019) Energy And Economic Assessment Of Using Temperature Controller In Air-Conditioned Room. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, the energy issue is important as it is one of the reasons for the increase in global warming. High energy consumption results in greater greenhouse gas emissions and impacts on the global environment. The air conditioning system is the biggest factor in energy consumption in Malaysia due to its high electrical capacity and uncontrolled usage time. Thus, this project aimed to develop an automatic temperature controller for air conditioning in the air-conditioned room in order to control and maintain the ambient temperature automatically. Furthermore, this automatic temperature controller reduced energy consumption and decreased the cost of electricity for consumers. In addition, this temperature controller is used with a basic air conditioner to have an automatic temperature control function. This project used electrical components including microcontroller and temperature sensor to detect the ambient temperature before controlling the air conditioning temperature through the system. After the development of the controller, the experiments are conducted, and the data of the ambient temperature are collected. The result in the experiment of the automatic temperature controller without temperature error showed that the energy consumes for the air conditioner is more efficiency which is 21597.46 Wh as opposed to 25904.00 Wh for the manual temperature controller. The electric bills are then calculated among the different types of the controller and results showed that there is a reduced cost of RM 0.94 per day with using the automatic temperature controller without temperature error. In results, this automatic temperature controller without temperature error is the lowest energy consumption and the most economic assessment among the experiment. In conclusion, an automatic temperature control device that displayed the ambient temperature and air conditioning temperature is developed, and this system can detect and control the air-conditioning temperature for energy efficiency benefit to the consumers.

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