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| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A piston/cylinder assembly contains 1 kg of liquid water at 20â—¦C and 300 kPa. Initially the piston floats, similar to the setup in Problem 3.173, with a maximum enclosed volume of 0.002 m3 if the piston touches the stops. Now heat is added so that a final pressure of 600 kPa is reached. Find the final volume and the heat transfer in the process.
Problem 3.173
A vertical cylinder fitted with a piston contains 5 kg of R-410a at 10â—¦C, as shown in Fig. P3.173. Heat is transferred to the system, causing the piston to rise until it reaches a set of stops, at which point the volume has doubled. Additional heat is transferred until the temperature inside reaches 50â—¦C, at which point the pressure inside the cylinder is 1.4 MPa. a. What is the quality at the initial state? b. Calculate the heat transfer for the overall process.

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