3. An 8-cylinder, 450 mm x 600 mm, 4 stroke cycle diesel engine has an exhaust gas mass rate of 4.5 kg/kw-hr brake based on fuel having air-fuel ratio of 20 to 1 and heating value of 10,540 kcal/kg. Engine speed is 260 rpm with brake mean effective pressure of 9.25 kg/cm2 An estimated 22% energy loss is carried away by the jacket cooling water. Calculate the brake horsepower. A. 2110 BHP B. 2011 BHP C. 2310 BHP D.2910 BHP
3. An 8-cylinder, 450 mm x 600 mm, 4 stroke cycle diesel engine has an exhaust gas mass rate of 4.5 kg/kw-hr brake based on fuel having air-fuel ratio of 20 to 1 and heating value of 10,540 kcal/kg. Engine speed is 260 rpm with brake mean effective pressure of 9.25 kg/cm2 An estimated 22% energy loss is carried away by the jacket cooling water. Calculate the brake horsepower. A. 2110 BHP B. 2011 BHP C. 2310 BHP D.2910 BHP
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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Transcribed Image Text:3. An 8-cylinder, 450 mm x 600 mm, 4 stroke cycle diesel engine has an exhaust gas
mass rate of 4.5 kg/kw-hr brake based on fuel having air-fuel ratio of 20 to 1 and
heating value of 10,540 kcal/kg. Engine speed is 260 rpm with brake mean effective
pressure of 9.25 kg/cm2 An estimated 22% energy loss is carried away by the jacket
cooling water. Calculate the brake horsepower.
B. 2011 BHP C. 2310 BHP
D.2910 BHP
Transcribed Image Text:5. A 3000 kw diesel generating set which is using a 25" API fuel has the following data:
fuel rate, 290 liters for 900 kw-hr; generator efficiency is 92%, and mechanical
efficiency is 82%. Calculate the engine-generator fuel rate in kg/kw-hr.
A 0.2916
B. 0.4587
C.0.3567
D. 0.9857
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