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Thread: Calculating Refrigerant Charge
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04-05-2017, 10:05 PM #1
Calculating Refrigerant Charge
Hello All
Im having a bit of trouble with some calculations. I would like to know how to calculate the size of charge (in grams) of R1234yf I would need to add to a hose that would result in a desired pressure at a certain temp.
Specifics:
Volume of Line: 15 cm^3
Volume of Oil: PAG 3% of volume = 0.45 cm^3
Temp: 135C
Desired pressure: 2 MPa
I tried calculating myself using ideal gas laws but I dont believe R1234yf would act ideal. My numbers seem low and I would like a math/fundamentals check.
Thanks in advance,