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Heat Pumps for Heating and Cooling Technically, any air conditioner can be considered a heat pump, but the HVAC industry considers heat pumps, to be air conditioners that have the ability to operate with a “Reverse cycle”. It you have walked behind a window air conditioner on a summer day, you might have felt the hot air being discharged by these machines. As described above, the temperature of the air leaving these units has increased because the refrigerant in the system picked up heat from the air inside the building, and that heat is being transferred to the air passing over the outdoor coil, thereby raising the temperature of the air. Think about what would happen if you install the window air conditioner in reverse i.e. turning it 180°. Now, instead of transferring heat from inside the room to the outdoors, the air conditioner would be attempting to cool the great outdoors and transferring heat from the higher temperature outdoor air to the lower temperature air within the room. On a 95°F day this would be objectionable because we would end up with 125° temperatures inside the conditioned room. However, think about this process on a 45°F day. The air conditioning unit, installed backwards, would be removing heat from the outdoor air at 45°F and transferring it to the air within a room at 70°F. This heating process is called “Reverse cycle air conditioning,” and this is what a heat pump is designed to do. It is designed to cool a space when operating as an air conditioner and it is designed to heat a space when the cycle is reversed. The actual reversal of the cycle is accomplished by reversing the flow of refrigerant and causing the indoor coil and the outdoor coils to switch roles. What is the Benefit? The most important characteristic of a heat pump is that the amount of heat that can be transferred is greater than the energy needed to drive the cycle. 4PDF 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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