Answer a) and b) only An ideal incomplete-expansion cycle uses steam generated at 1.85 MPa. Release condition isdry and saturated. Exhaust steam is at 0.03 MPa and has 10.58% quality. The actual engine uses 1000kg/h of steam. The brake engine efficiency is 60% and the mechanical efficiency is 85%. (a) for theideal engine, calculate the thermal efficiency and mep. For the actual engine, calculate (b) the brakepower in kW and the brake thermal efficiency, (c) the indicated thermal efficiency and the indicatedheat rate (d) the approximate enthalpy of the exhaust steam at 0.03 MPa assuming that the heat lossfrom the engine is 23 kJ per kg of steam.

Answered: Image /qna-images/answer/03ec7c83-9cf4-4b20-a028-e14cb02d5dc1.jpg

Answered: Answer a) and b) only

Engineering

Mechanical Engineering

Answer a) and b) only

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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Question

Answer a) and b) only

An ideal incomplete-expansion cycle uses steam generated at 1.85 MPa. Release condition is
dry and saturated. Exhaust steam is at 0.03 MPa and has 10.58% quality. The actual engine uses 1000
kg/h of steam. The brake engine efficiency is 60% and the mechanical efficiency is 85%. (a) for the
ideal engine, calculate the thermal efficiency and mep. For the actual engine, calculate (b) the brake
power in kW and the brake thermal efficiency, (c) the indicated thermal efficiency and the indicated
heat rate (d) the approximate enthalpy of the exhaust steam at 0.03 MPa assuming that the heat loss
from the engine is 23 kJ per kg of steam.

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