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 Post subject: R-134a enters as a saturated liquid at 50C, and leaves at -2
PostPosted: Thu Jun 21, 2018 8:56 am 
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R-134a enters as a saturated liquid at 50C, and leaves at -20C. What is the quality of the stream as it is leaving?

Full Question:
A throttling process involves R-134a entering as saturated liquid at 50 degrees Celsius and leaving at -20 degrees Celsius. Determine the quality of this exiting stream.

If anyone could explain or solve this, it would be much appreciated. Im applying a Saturated refrigerant-134a temperature table, but Ive been getting an answer of 0. Also, the exacting table I am meant to use does not have 50 degrees; it has 48 and 52. Any recommendations on what values to use would also be helpful.
The approximate answer is 0.46026.

(Table: https://www.egr.msu.edu/classes/me417/somerton/R134a%20Tables.pdf)



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