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Rankine Cycle and Engine

Rankine Cycle and Engine

Elements Of Electromagnetics
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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Rankine Cycle and Engine 1. In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480°C. The condenser is at 32°C. Determine (a) the ideal pump work, (b) the cycle thermal efficiency, (c) For an engine with the same end states, determine its thermal effi- ciency, steam rate, and mep. (d) Considering the engine only, assume the brake engine efficiency to be 78%, the generator efficiency 92%, the steam flow rate 163,600 kg/hg; compute the output of the combined unit. Ans. (a) 4.12 kJ/kg; (b) 38.66%; (c) 38.73%, 2.85 kg/kwh, 51.92 kPa; (d) 41,227 kW
Transcribed Image Text:Rankine Cycle and Engine 1. In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480°C. The condenser is at 32°C. Determine (a) the ideal pump work, (b) the cycle thermal efficiency, (c) For an engine with the same end states, determine its thermal effi- ciency, steam rate, and mep. (d) Considering the engine only, assume the brake engine efficiency to be 78%, the generator efficiency 92%, the steam flow rate 163,600 kg/hg; compute the output of the combined unit. Ans. (a) 4.12 kJ/kg; (b) 38.66%; (c) 38.73%, 2.85 kg/kwh, 51.92 kPa; (d) 41,227 kW
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