13. A four-cycle six cylinder diesel engine of 4 % in boreand 6-in stroke running at 1200 rpm, has 9 percentCO, present in the exhaust gases. The fuelconsumption is 28 lb/hr. Assuming that 13.7 percentCO2 indicates an air-fuel ratio of 15 Ib of air to 1 ib offuel, calculate the volumetric efficiency of theengine. The intake air temperature is 60 deg. F andthe barometric pressure is 29.80 in of Hg.A. 83%B. 81%C. 87%D. 92%50

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Engineering

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ext gases. 28 lb/hr. Assuming t n air-fuel ratio of 15 e volumetric efficior Hicion

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

13. A four-cycle six cylinder diesel engine of 4 % in bore
and 6-in stroke running at 1200 rpm, has 9 percent
CO, present in the exhaust gases. The fuel
consumption is 28 lb/hr. Assuming that 13.7 percent
CO2 indicates an air-fuel ratio of 15 Ib of air to 1 ib of
fuel, calculate the volumetric efficiency of the
engine. The intake air temperature is 60 deg. F and
the barometric pressure is 29.80 in of Hg.
A. 83%
B. 81%
C. 87%
D. 92%
50

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