An eight-cylinder, square, 4.2 L, S.I. engine, operates on a four-stroke cycle at 3200 RPM and compression ratio rc of 10. At this condition, the mechanical efficiency is 65% and 1200 J of indicated work is produced in each cylinder. It has a combustion efficiency of 98%, AF ratio of 12, and a heating value of 43 MJ/kg. Determine the following: (a) bore of the engine in cm, (b) specific volume in kW/cm2, (c) output per displacement in hp/cm3, (d) frictional losses in kW, (e) mass flow rate of fuel in the engine in kg/hr, (f) brake specific fuel consumption in gm/kW-hr, (g) brake thermal efficiency,
An eight-cylinder, square, 4.2 L, S.I. engine, operates on a four-stroke cycle at 3200 RPM and compression ratio rc of 10. At this condition, the mechanical efficiency is 65% and 1200 J of indicated work is produced in each cylinder. It has a combustion efficiency of 98%, AF ratio of 12, and a heating value of 43 MJ/kg. Determine the following: (a) bore of the engine in cm, (b) specific volume in kW/cm2, (c) output per displacement in hp/cm3, (d) frictional losses in kW, (e) mass flow rate of fuel in the engine in kg/hr, (f) brake specific fuel consumption in gm/kW-hr, (g) brake thermal efficiency,
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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An eight-cylinder, square, 4.2 L, S.I. engine, operates on a four-stroke cycle
at 3200 RPM and compression ratio rc of 10. At this condition, the
efficiency is 65% and 1200 J of indicated work is produced in each cylinder. It
has a combustion efficiency of 98%, AF ratio of 12, and a heating value of 43
MJ/kg. Determine the following:
(a) bore of the engine in cm,
(b) specific volume in kW/cm2,
(c) output per displacement in hp/cm3,
(d) frictional losses in kW,
(e) mass flow rate of fuel in the engine in kg/hr,
(f) brake specific fuel consumption in gm/kW-hr,
(g) brake thermal efficiency,
(h) fuel conversion efficiency.
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