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Showing 1 to 3 of 3 for “"Quick Closing Valve Technique"”.
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Distribution of refrigerant and lubricant in automotive air conditioning systems
… in each component of an automotive A/C system. Quick Closing Valve Technique (QCVT) combined with Remove and Weigh Technique is employed to measure the refrigerant mass, with an overall uncertainty within 2%. Three different techniques-Remove and Weigh, Mix and Sample and Flushing- are used to …
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Transient distribution of refrigerant and oil in a residential heat pump water heater system
… to pair with POE 22 oil as the working fluid. Quick Closing Valve Technique (QCVT) is employed to localize refrigerant and oil into each component of the system. Remove and Weigh Technique (RWT) is then used to measure the refrigerant mass, with an uncertainty about 0.17% of total refrigerant …
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Experimental and analytical investigation of refrigerant and lubricant migration
… measured across five sections divided by ball valves. Using the Quick-Closing Valve Technique (QCVT) combined with the Remove and Weigh Technique (RWT) using liquid nitrogen as the condensing agent resulted in a measurement uncertainty of 0.4 percent regarding the total refrigerant mass in the …