Quiz 31 An Otto engine cycles 4- Stroke have a diameter of 15 cm and stroke 20cm. The clearance volume is 10 % of the swept volume, using light Petrol fuel at an air-fuel ratio of (A/F)= 18:1, N= 2750 rpm, at the compression stroke conditions in the cylinder are 333K and 100 kpa, a mechanical efficiency of 85% ,and heating value of 44000 kj/kg. Determine: 1- The compression ratio. 2- Work net. 3-Thermal efficiency Otto. 4-Bsfc. 5- Torque (N.m). Assume: Cp=1.005 kj/kg.k, Cv= 0.718 kj/kg.k, R= 0.287 Kj/kg.K ,8=1.4 and air density=1.18m3/kg.
Quiz 31 An Otto engine cycles 4- Stroke have a diameter of 15 cm and stroke 20cm. The clearance volume is 10 % of the swept volume, using light Petrol fuel at an air-fuel ratio of (A/F)= 18:1, N= 2750 rpm, at the compression stroke conditions in the cylinder are 333K and 100 kpa, a mechanical efficiency of 85% ,and heating value of 44000 kj/kg. Determine: 1- The compression ratio. 2- Work net. 3-Thermal efficiency Otto. 4-Bsfc. 5- Torque (N.m). Assume: Cp=1.005 kj/kg.k, Cv= 0.718 kj/kg.k, R= 0.287 Kj/kg.K ,8=1.4 and air density=1.18m3/kg.
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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Transcribed Image Text:Quiz 3/ An Otto engine cycles 4-
Stroke have a diameter of 15 cm and
stroke 20cm. The clearance volume is
10 % of the swept volume, using light
Petrol fuel at an air-fuel ratio of
(A/F)= 18:1, N= 2750 rpm, at the
compression stroke conditions in the
cylinder are 333K and 100 kpa, a
mechanical efficiency of 85% ,and
heating value of 44000 kj/kg.
Determine: 1- The compression ratio.
2- Work net. 3-Thermal efficiency
Otto. 4-Bsfc. 5- Torque (N.m).
Assume: Cp=1.005 kj/kg.k, Cv= 0.718
kj/kg.k, R= 0.287 Kj/kg.K ,8=1.4 and air
density=1.18m3/kg. *
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