Absorbs Heat from Outside Air and Release it inside the Building by Heat Pump

Emad Saad AL- Deen, Afreen

	Absorbs Heat from Outside Air and Release it inside the Building by Heat Pump
Journal of Engineering and Sustainable Development
Article 1, Volume 15, Issue 4, 2011, Pages 189-204
Author
Afreen Emad saad AL- deen
Abstract
A heat pump in the most basic sense, is little more than a conventional air – conditioning system that is equipped with the necessary components to cause it to reverse its running cycle, while the heat pump is operating in reverse, it absorbs heat from the air outside and releases it inside the building.In this system Freon gas (R134) was used because it is more efficiency from the other kinds of gases that used for conditioning, and the data that produced from this system at its running time was compared with that produced from another system also used the same kind of gas. In this work the first step is to measure the temperatures at various points in the cycle (t1-----t8) these points are:• The temperature of (R134) at outlet from the compressor.• The temperature of (R134) at outlet from the condenser.• The temperature of (R134) at outlet from the expansion valve.• The temperature of (R134) at outlet from the evaporator.• The temperature of water at inlet to the condenser.• The temperature of water at outlet from the condenser.• The temperature of water at inlet to the evaporator.• The temperature of water at outlet from the evaporator. Also to measure the intake and compression pressures, denoted with Pv and Pc, which do not coincide with the evaporation and compression pressures, due to the pressure drops taking place in the refrigerant going through the heat exchangers.And determine the heat in condenser and in compressor, and in evaporator.Then determine the efficiency of Carnot’s ideal cycle to be able of compare the results with those relating to an ideal machine.
Keywords
Heat Pump; temperature; Cooling; cycle

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