A piston cylinder assembly initially contains 5 kg of water, a saturated liquid-vapor mixture at a pressure of 100 kPa. 2 kg of water is in liquid phase and the rest is in vapor phase. In this state, the piston is on the stoppers. Then there is heat transfer to water, pressure rises and when 150 kPa the piston moves begins to do. Heat transfer continues until the total volume is twice the initial volume. According to this; a) Draw the T-v and P-v diagram of the process. b) Initial and final temperatures, c) Calculate the mass of water in the liquid phase when the piston starts to move upwards.

A piston cylinder assembly initially contains 5 kg of water, a saturated liquid-vapor mixture at a pressure of 100 kPa. 2 kg of water is in liquid phase and the rest is in vapor phase. In this state, the piston is on the stoppers. Then there is heat transfer to water, pressure rises and when 150 kPa the piston moves begins to do. Heat transfer continues until the total volume is twice the initial volume. According to this; a) Draw the T-v and P-v diagram of the process. b) Initial and final temperatures, c) Calculate the mass of water in the liquid phase when the piston starts to move upwards.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 30RQ: A gas is compressed inside a compressor's cylinder. When the piston is at its bottom dead center,...

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