Air Conditioning Analysis

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Air-conditioning refers to the combined process of conditioning of air in a specific space. Such processes of air include providing heating or cooling, humidification or dehumidification, air cleaning or filtering, as well as the distribution of the conditioned air. In other words, air conditioning controls and maintains different parameters in the specific space such as temperature, humidity, cleanliness and pressure differential with surroundings. The purpose of air conditioning can be divided into to two categories. First is for comfort air conditioning which focuses on providing comfortable and healthy indoor environment to the occupants. The other one is for process air conditioning which focuses on controlling and maintaining predetermined …show more content…

The conditioned supply air is then distributed to the conditioned space through ducts, terminals, and diffusers. There are disadvantages in using chilled water air conditioning system such as extra electricity consumption for circulating pump of chilled water and lower system capacity due to some heat gain through transmission & friction. However, it is widely used for air-conditioning of large hotels, office buildings and malls due to its flexibility when it comes in selection, layout and operation (Ananthanarayan, P.N. 2013) especially that the central refrigeration plants and even the air-handling unit can be remotely installed from sensitive areas of the said buildings. Additionally, water flow makes it possible for the heating and cooling capacities to be modulated with accuracy (Wang, S.K. …show more content…

It can use to significantly help meeting the demand for heating or cooling efficiently and environmentally by correcting the mismatch between the supply and demand of energy. There are generally two types of TES systems which are sensible TES and latent TES. Potential application of sensible TES technologies, which uses rock or water, are mainly in residential buildings. The latent TES systems are primarily used in HVAC systems to minimize the energy consumption in industrial and commercial buildings by shifting on-peak demand thermal loads, usually at daytime, to off-peak conditions, usually at nighttime (Kalaiselvam, R. & Parameshwaran, R., 2014). TES systems applied in air conditioning systems are using either an ice storage or a chilled water storage. Phase-change material storage systems are also used but have limited applications in commercial buildings due to high discharge temperatures and high required storage tank volume (Wang, S.K.

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