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Heat Pumps for Heating and Cooling 4.2. Types of WSHP Loop Systems There are two types of geothermal heat pump classifications: Heat pump systems that utilize ground wells are referred to as open-loop systems while those that utilize buried, water-filled loops are referred to as closed-loop systems. Open loop systems − An open loop heat pump system is one that utilizes a water source that is open to the atmosphere or Earth. During the heating mode, heat is transferred from the water in the Earth to the refrigerant circuit. This heat is then transferred from the refrigerant circuit to the air or water that is being heated. − Open loop heat pump systems rely on a constant supply of water from the sources such as earth well, lake, or pond as the heat transfer medium. The water is not consumed and is discharged back into the earth/drain or dry well. Since the water does not come in contact with any chemicals or other substances within the system, no environmental damage results. It is important, though, to check with local codes and guidelines relating to the installation of this type of heat pump system. − This procedure is simple to install, but has certain disadvantages, such as fouling of the heat exchanger unit, high maintenance, and environmental impact of the reject high temperature water to aquatic life. 50PDF Image | Heat Pumps for Heating and Cooling
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
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