DieselShip's Online Content Library

Q1. A perfect gas for which R = 0.287 kJ/kg K and g = 1.33 expands reversibly in a cylinder according to the law pV^1.48 = constant and then heated at constant volume. The initial pressure is 88 bar, the initial temperature is 1727°C and the final pressure is 1.5 bar. The final volume is twenty times the initial volume.

(a) Sketch the processes on p-V and T-S diagrams. (4)

(b) Determine EACH of the following:

(i) The temperature after expansion; (2)

(ii) The final temperature; (2)

(ii) The net heat transfers per kg; (5)

(iv) The net change in specific entropy. (3)