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Heat Pumps for Heating and Cooling • Closed loop systems − A Closed loop system utilizes loops or coils of buried tubing that contain water or a water/antifreeze mixture. These loops are sealed and, if there are no leaks, will remain completely filled all the time. The water contained in these loops is used over and over to facilitate the transfer of heat either into or out of the heat pump system. − Unlike open loop system, the system circulates the working fluid through the pipes and do not use a water source. The length of required piping depends on ground thermal conductivity, ground temperature, and heating and cooling power needed. − The closed loop system is a popular choice when the water table is far below the ground, the ground water temperature is too low, the water quality is poor or the mineral content is too high. − The main advantage of closed loop system over an open loop system is that there is no fouling of the heat exchanger since the closed-loop system uses the same treated water in the loops. The heat exchanger surfaces remain clean, heat transfer efficiency is not compromised, maintenance is reduced and the marine life is not endangered. − There are four loops in a closed-loop system: Water loop or ground loop – The antifreeze fluid in the loop exchanges heat with ground or water bodies (river, lakes or ponds). Refrigerant loop - It exchanges heat energy with the ground loop. Air Loop - It distributes the heated or cooled air to the building. Domestic Hot Water Loop - It passes through the hot discharge line of the compressor and heats up the hot water tank. 51PDF 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
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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