Two strokes Cl engine develops a break power of 368 kW while its frictional power is 73.6 kW. Its fuel consumption is 180 kg/h and works with an air-fuel ratio of 20:1. The heating value of the fuel is 42000kJ/kg. Calculate mechanical efficiency? O a. 83.3% O b. 65.2% O c. 91.9% O d. 23.1% Oe. All of the answers are false.

Two strokes Cl engine develops a break power of 368 kW while its frictional power is 73.6 kW. Its fuel consumption is 180 kg/h and works with an air-fuel ratio of 20:1. The heating value of the fuel is 42000kJ/kg. Calculate mechanical efficiency? O a. 83.3% O b. 65.2% O c. 91.9% O d. 23.1% Oe. All of the answers are false.

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter28: Gasoline, Diesel, And Other Fuels

Section: Chapter Questions

Problem 6RQ: List three alternative fuels for an internal combustion engine and briefly explain where they come...

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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

Calculate mechanical efficiency?

O a. 83.3%

O b. 65.2%

O c. 91.9%

O d. 23.1%

Oe. All of the answers are false.

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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hello, could you please help, i understand there may need more credits, so can advise how and will award, thanks