2. A Spark-Ignition Engine has 4 cylinders in-line, a compression ratio of 8.7 and a displacement of 2.6Liters and with S = 1.05B. Fuel used is C 8 H 18 with an equivalence ratio of 1.05 with combustionefficiency of 100%. The heating value of the fuel is 44,300 kJ/kg. While operating at 3200 rpm,mechanical efficiency is 86 % and indicated engine efficiency is 96%. Conditions at the start ofcompression stroke are 100 kPaa and 60 o C. It can be assumed that there is a 3 % exhaust residual leftfrom the previous cycle.Determine: a) P and T at cycle state points, b) mass of air per cylinder, c) mass of fuel per cylinder, d)brake thermal efficiency, e) torque produced, f) fmep, g) isfc, h) volumetric efficiency, i) Specific Power 2. A Spark-lgnition Engine has 4 cylinders in-line, a compression ratio of 8.7 and a displacement of 2.6Liters and withs = 1.05B. Fuel used is CH1s with an equivalence ratio of 1.05 with combustionefficiency of 100%. The heating value of the fuel is 44,300 kJ/kg. While operating at 3200 rpm,mechanical efficiency is 86 % and indicated engine efficiency is 96%. Conditions at the start ofcompression stroke are 100 kPaa and 60 C. It can be assumed that there is a 3 % exhaust residual leftfrom the previous cycle.Determine: a) P and T at cycle state points, b) mass of air per cylinder, c) mass of fuel per cylinder, d)brake thermal efficiency, e) torque produced, f) fmep, g) isfc, h) volumetric efficiency, i) Specific Power

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Answered: 2. A Spark-Ignition Engine has 4…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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2. A Spark-Ignition Engine has 4 cylinders in-line, a compression ratio of 8.7 and a displacement of 2.6
Liters and with S = 1.05B. Fuel used is C 8 H 18 with an equivalence ratio of 1.05 with combustion
efficiency of 100%. The heating value of the fuel is 44,300 kJ/kg. While operating at 3200 rpm,
mechanical efficiency is 86 % and indicated engine efficiency is 96%. Conditions at the start of
compression stroke are 100 kPaa and 60 o C. It can be assumed that there is a 3 % exhaust residual left
from the previous cycle.
Determine: a) P and T at cycle state points, b) mass of air per cylinder, c) mass of fuel per cylinder, d)
brake thermal efficiency, e) torque produced, f) fmep, g) isfc, h) volumetric efficiency, i) Specific Power

2. A Spark-lgnition Engine has 4 cylinders in-line, a compression ratio of 8.7 and a displacement of 2.6
Liters and withs = 1.05B. Fuel used is CH1s with an equivalence ratio of 1.05 with combustion
efficiency of 100%. The heating value of the fuel is 44,300 kJ/kg. While operating at 3200 rpm,
mechanical efficiency is 86 % and indicated engine efficiency is 96%. Conditions at the start of
compression stroke are 100 kPaa and 60 C. It can be assumed that there is a 3 % exhaust residual left
from the previous cycle.
Determine: a) P and T at cycle state points, b) mass of air per cylinder, c) mass of fuel per cylinder, d)
brake thermal efficiency, e) torque produced, f) fmep, g) isfc, h) volumetric efficiency, i) Specific Power

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