Water to water heat pumps

In these systems and heat pumps, heat source and heat sink water. The heat pump system takes the heat from the water source (coil), while rejecting its water cooler (coil B) and either heats or cools space or process. In practice, there are many sources of water, for example. wastewater, single or double well, lake, swimming pool and the tower. These heat pumps consume less electricity than other heat pumps when they are in proper condition. However, without proper maintenance operating costs increase dramatically.

Table 4.5 presents typical Cops for water-to-water heat pump, operating in various systems of a heat supply. The temperature of a heat source 5VC, and the heat pump Carnot efficiency of 50%.