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A test on a one-cylinder Otto cycle engine yields the following data: 950 N-m torque; 758 kPa mean effective pressure; 28-cm bore; 30.5-cm stroke; 300 rpm; and 0.003 kg/s fuel consumption with a heating value of 41 860 kJ/kg. Determine (a) the engine thermal efficiency; (b) the engine mechanical efficiency; (c) the fuel cost per hr if fuel costs 50 cents per liter. The specific gravity is 0.82.

A test on a one-cylinder Otto cycle engine yields the following data: 950 N-m torque; 758 kPa mean effective pressure; 28-cm bore; 30.5-cm stroke; 300 rpm; and 0.003 kg/s fuel consumption with a heating value of 41 860 kJ/kg. Determine (a) the engine thermal efficiency; (b) the engine mechanical efficiency; (c) the fuel cost per hr if fuel costs 50 cents per liter. The specific gravity is 0.82.

Elements Of Electromagnetics
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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A test on a one-cylinder Otto cycle engine yields the following data: 950 N-m torque; 758 kPa mean effective pressure; 28-cm bore; 30.5-cm stroke; 300 rpm; and 0.003 kg/s fuel consumption with a heating value of 41 860 kJ/kg. Determine (a) the engine thermal efficiency; (b) the engine mechanical efficiency; (c) the fuel cost per hr if fuel costs 50 cents per liter. The specific gravity is 0.82.
Transcribed Image Text:A test on a one-cylinder Otto cycle engine yields the following data: 950 N-m torque; 758 kPa mean effective pressure; 28-cm bore; 30.5-cm stroke; 300 rpm; and 0.003 kg/s fuel consumption with a heating value of 41 860 kJ/kg. Determine (a) the engine thermal efficiency; (b) the engine mechanical efficiency; (c) the fuel cost per hr if fuel costs 50 cents per liter. The specific gravity is 0.82.
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