Abstract
The purpose of this research is to study the effect of water temperature change in the reservoir on water heat pump performance. An experimental analyse is done on the heat pump station which depends on water as a heat source. The experimental results confirm that the ice formation has a negative effect on the heat exchange efficiency, and the increase in water source temperature slow down the ice formation rate which causes an appositive effect on the system performance.
Highlights
Traditional heating systems are the basic source of pollution, that’s why the use of heat pumps grows nowadays
The heat pumps depend on the water-air-and ground as an energy source. the heat pump which depends on water as the energy source is a promising technology because even when the air temperature drops to -5 оС in many areas in the world, the water surfaces temperatures keep in the range [7-13] оС
The velocity of ice formation ratio on the evaporator tube has a high effect on the system performance and heat exchange rate between the Freon and water in the evaporator
Summary
Traditional heating systems are the basic source of pollution, that’s why the use of heat pumps grows nowadays. The heat pumps depend on the water-air-and ground as an energy source. The heat pump which depends on water as the energy source (rivers-lakes-sea water) is a promising technology because even when the air temperature drops to -5 оС in many areas in the world, the water surfaces temperatures keep in the range [7-13] оС. There is a lack of information about water source heat pump systems. The thermodynamic analysis shows that the temperature of the heat source has the highest effect on the heat pump performance, the heating time for water in condenser and the ice formation characteristics. The velocity of ice formation ratio on the evaporator tube has a high effect on the system performance and heat exchange rate between the Freon and water in the evaporator
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