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Figure 8-4 QuickSetter balancing valves zone valves zone 1 heating zone 2 heating air vent w/ check zone 1 cooling fan-coil zone 2 cooling fan-coil spring check valves purging valves variable-speed pressure-regulated circulator spring check heat cntl cool cntl entire system filled with antifreeze solution All piping and components conveying chilled water must be insulated and vapor sealed SINGLE SPEED monobloc air-to-water heat pump fill/purge valve (P1) temperature sensors OUTSIDE INSIDE SYSTEM #4 The system shown in Figure 8-4 provides heating and cooling to two zones. The system can only operate in one mode (e.g., heating or cooling) at a time. The buffer tank and heat pump are shown in heating mode. The heating and cooling source is a single speed monobloc air-to-water heat pump. The buffer tank is piped in a 3-pipe configuration and is used in both heating and cooling modes. The entire system operates with a solution of propylene glycol antifreeze. In heating mode, a variable-speed pressure-regulated circulator supplies two independent zones of radiant panel heating. Flow through each manifold station is controlled by a zone valve. Each manifold station also has a flow balancing valve. The zone valves to the fan-coils remain closed during heating mode. In cooling mode, the same circulator supplies two independently controlled fan-coils. Each fan-coil circuit has a flow balancing valve. The zone valves to the heating manifold stations remain closed during cooling mode. During heating mode, the heat pump and its associated circulator are turned on and off based on an outdoor reset controller that monitors the temperature at the mid-point of the buffer tank. This control action is independent of any call for heat from the room thermostats. The warmer the outdoor 77PDF Image | Heat Pump Systems 2020
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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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