![]() ![]() In condensers, heat is removed from the system by the condenser in order to change the gas to a liquid. In boilers and evaporators, energy is added into the system by the boiler or evaporator in order to heat the liquid to gas. ![]() In boilers and evaporators, liquid is changed to gas and in condensers, gas is changed to liquid. Essentially work is transferred to or from these pieces of equipment.īoilers, condensers and evaporators are pieces of equipment where a phase change in a fluid occurs. In both cases, this power source is called Work. In a turbine, energy is transferred from a fluid to provide a power source. In a pump and compressor, energy is transferred from a power source to the fluid. Pumps and compressors increase the pressure of the fluid, while turbines reduce the pressure of the fluid. Turbines, pumps and compressors change the amount of energy of the incoming fluid by changing the pressure of the fluid. Therefore, when transfers of states or changes in phases occur in a system, an energy balance equation can be created to solve for the unknown properties in a system or cycle. Conservation of energy is a law in nature and states that energy cannot be created or destroyed. ![]()
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