(25%) Q2. It includes wet vapor of R717 with a quality of 0.2 at a temperature of 15°C in a frictionless and well insulated piston-cylinder system shown in Fig. 2. Refrigerant is mixed with a propeller and initially occupies a volume of 5 L. When the pressure inside the cylinder reaches 800 kPa, the pin holding the cylinder will be broken and the propeller will stop, simultaneously. The piston moves upward after breaking the pin up to the point where equilibrium condition is obtained. Refrigerant is at saturated condition and a temperature of -15°C when the system reaches thermodynamic equilibrium. Calculate (a) the work done by the propeller, (b) The work done by the Fig. Q2 Piston- refrigerant after the pin is broken, and (c) the final volume of the refrigerant, (d) the entropy change of the refrigerant, (e) the entropy generation through this process. R717 cylinder system

(25%) Q2. It includes wet vapor of R717 with a quality of 0.2 at a temperature of 15°C in a frictionless and well insulated piston-cylinder system shown in Fig. 2. Refrigerant is mixed with a propeller and initially occupies a volume of 5 L. When the pressure inside the cylinder reaches 800 kPa, the pin holding the cylinder will be broken and the propeller will stop, simultaneously. The piston moves upward after breaking the pin up to the point where equilibrium condition is obtained. Refrigerant is at saturated condition and a temperature of -15°C when the system reaches thermodynamic equilibrium. Calculate (a) the work done by the propeller, (b) The work done by the Fig. Q2 Piston- refrigerant after the pin is broken, and (c) the final volume of the refrigerant, (d) the entropy change of the refrigerant, (e) the entropy generation through this process. R717 cylinder system

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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