Malaysia has a Tropical Rain Forest Climate - Engineering Assignment Help

Assignment Task

Malaysia has a tropical rain forest climate with an average temperature of 31°C and could be as high as 40°C at a certain time of the year. Thus, the air conditioning unit is no more a luxury home appliance and almost every household has at least one air-conditioner unit installed. Though it is a necessity now to cool down the living environment, the electric bill remains a major concern for most consumers. Hence installing the right type of air-conditioner than can ensure optimum usage of electricity is desirable other than considering the cost and maintenance involved.    
 

Question
Your brother has just rented additional office space for his employees. He has decided to install an air-conditioner unit in one of the office rooms with the floor size of 4 m x 5 m.
2 employees will be occupying the room. The room has a window of size 3 m x 1 m facing west. The contractor after observing the condition of your office room quoted you an air-conditioning unit of 2 Horse Power (HP) and claiming that the air conditioning is able to cool down the room from 31 ºC to 26 ºC in 20 minutes and the electricity consumption is only 13 kWh. He is not entirely convinced that he needs a 2 HP air conditioning unit for his office room and doubts that the power consumption is as per what the contractor claimed. Knowing that you are currently studying Thermodynamics and Heat Transfer, he has decided to ask for your opinion. You are thus required to investigate the problems at hand and present to your brother a report that can help him to make a decision on the air-conditioning unit based on Thermodynamics and Heat Transfer principles with clear and appropriate assumptions.
PS: Please do provide a detailed explanation of
Energy analysis of the selected space.
Power consumption of the air-conditioning unit.
heat load analysis under the steady condition of the room. I am expecting at least some calculations of the heat transfer through the wall and window by conduction.
choose a 2 hp aircon unit with known refrigerant used.
determine the time needed to cool the room to the desired temperature
determine the power consumption to maintain that temperature by assuming steady condition
determine the total power consumption.

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