Recommendation Report Concerning the Plan to Replace the Central Air-Conditioning System in the University Main Auditorium

Topics: HVAC, Air conditioning, Air conditioner Pages: 3 (1087 words) Published: September 20, 2012
Replacing the central air conditioning system in the University main auditorium, a process of creating a new and more effective way to condition the air, for it needing replacing probably means the one being used is not as effective as its expected, so I have mentioned a lot of probably ignored factors causing the inefficiency of the formal, for example the difference in temperature between the outside and inside temperature, the type of material used to build the walls and the shading from sunlight. When these factors are considered then we will have a more efficient air conditioning system in the Main Auditorium.

1. Introduction.
Central air-conditioning in a large building such as the University main auditorium generally consists of a cooling plant located on the roof or mechanical floor which provides space for building systems, accesible through regular elevators and stairwells and efficiently spaced air-handling units, or fans that deliver air through ducts which is a tube or pathway by which the air is conveyed to zones within the building. The air then returns to the central air-conditioning machinery through spaces called plenums to be cooled and circulated again. Alternate systems of cooling use chilled water, with water cooled by a refrigerant at a central location and circulated by pumps to units with fans that circulate air locally. 2. Sizing the air-conditioning system.

Air conditioner sizing is based on heat gain, and/or losses in a building. It is obvious that you will need to remove the amount of heat gain - if it is hot outside. Similarly, there is a need to add to the heat loss from the inside of the auditorium, if the outside temperature is cold. Essentially, heat gain and heat loss, must be balanced equally by the removal of heat and/or addition of heat to get the desired comfort that is expected. The heat gain or heat loss transfer through the Main Auditorium depends on: A. The temperature difference between outside...

Bibliography: 1. A. Bhatia, Cooling and Load Calculations and Principles Available from: .
2. Department of Defense, United States of America, Heating, Ventilating and Air conditioning, Availablefrom: .
3. NASA Technical standard, Washington DC, Safety Standard for Fire Protection Available from: .
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