Definitions and terms used in air conditioning.
Kilocalorie : The amount of energy needed to heat one gram of water one degree Celsius.
BTU is the energy that must be subtracted from one gram of water one degree centigrade to cool.
COP: Coefficient of abbreviations Of Performance is a coefficient of efficiency, and is the result of dividing the cooling capacity in watts by the power absorbed in watts, so the unit is expressed in W / W
EER : of abbreviations Energy Efficiency Ratio, is a power coefficient result of dividing the cooling capacity in Kcla / k by the power absorbed in watts, so the unit is expressed in Kcal / h / W. Energy Labelling
: Electrical appliances are marked with a letter A, B, C, to G-class brand energy or energy class, where G had the lowest efficiency and to the highest.
The energy label for appliances intended to show consumers the difference between the consumption of two devices with similar performance. Refrigerant
: the fluid used in the transmission of heat in a refrigeration system absorbs heat at low temperature and pressure, temperature and pressure cediéndolo higher. This process takes place, usually with fluid status changes.
The most used are the R410A refrigerant is azeotropic azeotropic almost behaves as a pure substance (must be loaded in the liquid phase) and non-azeotropic R407c consists of several gas phase components behave differently (must be loaded in liquid phase).
mediated Units:
cooling capacity of an air conditioning can be measured in BTU
: the British acronym Thermical Unit is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit (It's the same definition as Kcal. But utilizandos English units of measurement).
W: Watt is another way of expressing the cooling capacity
Kilocalorie : is another way of expressing the cooling capacity, and the most usual.
Therefore these three units say the same thing in different units, easily change a few simple unit conversion factors.
To switch BTU / h Kcal / h multiply by 0.252 kcal
To move / ha BTU / h divided by 0.252
To go from W / ha Kcal / h multiply by 0.86 Kcal
To move / ha W / h divided by 0.86
dBA: A-weighted decibels, a noise magnitude unit to compare the different sounds harmful to the human ear (and therefore serves to be weighted comparison between the sound of an air machine to another).
In this magnitude we can distinguish the output level (volume), and level of intensity (amplitude).
alberto@aricclima.com
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