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4 – Test Rig Design and Experimental Methods 4.2 Testing of a DHW Tank and a Movable Insulating Plate With reference to Section 3.3.3, Exergy Losses in the DHW Storage Tank, and Section 3.3.4, Application of a Movable Insulating Plate Inside the DHW Tank, a test rig, comprising a cylindrical single-shell DHW storage tank, two movable insulating plates (prototypes) and auxiliary equipment, was constructed in order to: ♦ Measure the transient temperature development in the tank at various operating conditions. ♦ Measure the thermal performance and test the functionality of a movable insulating plate. 4.2.1 Construction of the Test Rig A standard-sized 200 litre cylindrical DHW tank was constructed from transparent polycarbonate plates. The dimensions of the tank were as follows: ♦ Internal diameter: ♦ Height: ♦ Thickness, wall: ♦ Thickness, cover: ♦ Thickness, bottom: 500 mm (standard diameter) 1000 mm (standard height) 2mm 10 mm 10 mm The bottom of the tank was mounted on a wooden frame, and the poly- carbonate cover was reinforced with an 8 mm steel plate and tightened with six M8 steel rods in order to enable testing under slightly pressurized conditions. A special device was constructed in order to lift and lower the 15 kg steel plate. The tank was connected to city water, a hot water system and a drain by means of rubber and plastic hoses, and the water flows were controlled by means of ball valves, hand control valves and a pump. A 1 kW electric heater was used to heat the city water from the tank. Sketches and photos of the test rig are presented in Figures 4.23 to 4.26. 98PDF Image | Residential CO2 Heat Pump System for Combined
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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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