Tank A has a volume of 100 L and contains saturated vapor R-134a at 32°C. When the valve is opened, R-134a flows slowly into cylinder B which is initially empty. The piston mass and diameter are10 kg and 35.4 mm, respectively. Atmospheric pressure is 100 kPa and gravitational acceleration is 9.8 m/s2 . During this process heat is exchanged with the surroundings such that the R-134a always remains at 32°C. (a) Calculate the heat transfer for the process and (b) show the process in both tanks in a P-v diagram (you should plot two separate diagrams or if you prefer plotting a single diagram identify the process in each tank clearly). Hint1: Feel free to round up/down numbers as long as you are not introducing significant error. For ex: 98 kPa to 100 kPa or 102 kPa to 100 kPa, but indicate any rounding in your solution clearly. Hint2: You must start solving the problem with the continuity and energy equations.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Tank A has a volume of 100 L and contains saturated vapor R-134a at 32°C. When
the valve is opened, R-134a flows slowly into cylinder B which is initially empty. The piston
mass and diameter are10 kg and 35.4 mm, respectively. Atmospheric pressure is 100 kPa and
gravitational acceleration is 9.8 m/s2
. During this process heat is exchanged with the
surroundings such that the R-134a always remains at 32°C. (a) Calculate the heat transfer for the
process and (b) show the process in both tanks in a P-v diagram (you should plot two separate
diagrams or if you prefer plotting a single diagram identify the process in each tank clearly).
Hint1: Feel free to round
up/down numbers as long as you
are not introducing significant
error. For ex: 98 kPa to 100 kPa
or 102 kPa to 100 kPa, but
indicate any rounding in your
solution clearly.
Hint2: You must start solving the
problem with the continuity and
energy equations.
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