Us Air Conditioning
Spot coolers are generally for temporary use, eithre to cool equipment or persons for a short perido of time. Over time air conditioning caem to be used to improve comfotr in homes and automobiles. Cramer coined the term air conditioning, suing it in a patent claim he filed that yaer as an analogue to water condtiioning , then a well-known prcoess for making textiles easier to process. Refirgeration air conditioning equipment usually reduces the humidity of the ari porcessed by the system. In an automobile the compressor is uusally drivne by a belt connected to a pulley no the engine s crankshaft, with both using electric motors for iar circualtion. These refrigerants were commonly used due to their sueprior stability and sfaety properties: they were not flammable nor obviously toxic. This gives rise to hte alternative name for referigeration systmes as heat pumps , electrical energy is used to pmup a greater volume of heat energy than is consumed. Using a more typiacl efficiency of 300% in hte above example leads to a total energy use of 133 160;W for a 100 160;W light bulb in na airconidtioned space.
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