4. The condensing pressure for a Rankıne engine Calculate the net work for 1 kg of steam and the thermal efficiency when the steam at the beginning of expansion is at 50 bar and (a) saturated, (b) 350°C, and (c) 640°C. Ans. (a) 627.2 kJ/kg, 26.4%; (b) 727.3 kJ/kg, 27.5%; (c) 1979.49 kJ/kg, 32.35% 2 15 MPa

4. The condensing pressure for a Rankıne engine Calculate the net work for 1 kg of steam and the thermal efficiency when the steam at the beginning of expansion is at 50 bar and (a) saturated, (b) 350°C, and (c) 640°C. Ans. (a) 627.2 kJ/kg, 26.4%; (b) 727.3 kJ/kg, 27.5%; (c) 1979.49 kJ/kg, 32.35% 2 15 MPa

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.75P: Referring to Problem 1.74, how many kilograms of ice can a 3-ton refrigeration unit produce in a...

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