15. A locomotive is tested with a dynamometer car coupled between the tender and the train. Traveling over a level track at a speed of 130 kmply,the dynamometer registers 10615 kg. What horsepower is the locomotive then delivering? On an extended run the dynamometer integrator gives 2945 kw hr, and over the same stretch 6215 kg of 27920 J/g coal were consumed. Calculate the thermal efficiency of the locomotive.
15. A locomotive is tested with a dynamometer car coupled between the tender and the train. Traveling over a level track at a speed of 130 kmply,the dynamometer registers 10615 kg. What horsepower is the locomotive then delivering? On an extended run the dynamometer integrator gives 2945 kw hr, and over the same stretch 6215 kg of 27920 J/g coal were consumed. Calculate the thermal efficiency of the locomotive.
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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Determine Illustration and assumption for both problems. Thank you
Transcribed Image Text:15. A locomotive is tested with a dynamometer car coupled between the tender and
the train. Traveling over a level track at a speed of 130 kmph,the dynamometer registers
10615 kg. What horsepower is the locomotive then delivering? On an extended run the
dynamometer integrator gives 2945 kw hr, and over the same stretch 6215 kg of 27920
J/g coal were consumed. Calculate the thermal efficiency of the locomotive.
Transcribed Image Text:11. Find the over-all heat rate and thermal efficiency of the plant shown in Fig.
8-11P. Boiler efficiency is 75%. Steam flow to pump, when generating 350 kw, is 181.4
kg per hr. Working head on pump =112.8 m. Neglect mechanical losses of pump.
8-79 kg/
cm²
98.9°
2-286 m
18-3⁰
OOF
Q = 99.8%
Corliss Engine
11-3 kg Steam/BHP/Hr
Mech. Eff. 89%
350 kw
Gen. Eff. 92%
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