3.) 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) indicated mean effective pressure in kPa (b) brake mean effective pressure in psia, (d) indicated power of the engine in kW, (e) brake power of the engine in hp, (f) torque in N-m,

3.) 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) indicated mean effective pressure in kPa (b) brake mean effective pressure in psia, (d) indicated power of the engine in kW, (e) brake power of the engine in hp, (f) torque in N-m,

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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Concept explainers

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.

Question

100%

3.) 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) indicated mean effective pressure in kPa
(b) brake mean effective pressure in psia,
(d) indicated power of the engine in kW,
(e) brake power of the engine in hp,
(f) torque in N-m,
(g) bore of the engine in cm
(h) specific volume in kW/cm?,
(i) output per displacement in hp/cm³,
(i) frictional losses in kW,
(i) mass flow rate of fuel in the engine in kg/hr,
(k) brake specific fuel consumption in gm/kW-hr,
(1) brake thermal efficiency,
(m) fuel conversion efficiency.

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