Monday, January 17, 2011

Air Conditioning and Conditioning Systems

By Paul Myers


Commercial air conditioning comes in both centrally driven systems and local systems. Traditionally offices tended to have a central cooling and heating fan unit whereby the temperature controlled air is distributed throughout the building by a system of ceiling or floor ducts.

A series of ventilation grills and baffles are balanced to ensue an even air distribution throughout the building.

The concept of air conditioning is thought to date back to ancient Rome, were water supplied direct by aqueducts was allowed to run between the walls of buildings to cool them. The Chinese used water to turn turbines or fans in order to create cool spaces in a building.

Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the summer season. The air conditioning we see today is based on these ancient principles, however advances in the use of chemistry during the 19th century led to the first large scale modern type of air conditioning unit being 'invented' and used in 1902.

Whilst most people holidaying on the continent have heard air conditioning units constantly battering noisily away this is no longer the case with modern units. Current units are so quiet that in a residential neighbourhood it is unlikely that noise would be an issue whatsoever, providing the unit manufacturer and siting were given careful consideration.

Wall mounted inverter units are common throughout commercial buildings and are now becoming increasingly used in hotels. The attraction of these units is the opportunity for residents to control inverter output temperatures locally and very accurately.

Along with the associated benefits of air conditioning, there are also several disadvantages; one disadvantage is the environmental cost. The costs to the environment is due to the amount of electricity required to run an air conditioning unit when some people argue that the same cooling effect can be seen by simply opening up a window.

As a guideline the cost indication would be that a single wall inverter unit and compressor can be supplied and fitted at under 2000 +vat.




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