A 4-cylinder, 4-stroke engine gave the following results when tested on a test bed and the following readings were obtained. • Shaft speed = 4500 rev/min • Fuel consumption = 2.5 g/s • Fuel Calorific Value = 44 MJ/kg • Indicative mean effective pressure = 650 kPa • Piston stroke = 120 mm • Piston bore = 100 mm, • Net Brake Load = 350 N • Torque arm = 0.40 m (Shaft Torque = Net Brake Load × Torque arm) Determine the: (a) Engine indicated power, (b) Brake power, (c) Brake thermal efficiency, (d) Friction power, and (e) Mechanical efficiency.
A 4-cylinder, 4-stroke engine gave the following results when tested on a test bed and the following readings were obtained. • Shaft speed = 4500 rev/min • Fuel consumption = 2.5 g/s • Fuel Calorific Value = 44 MJ/kg • Indicative mean effective pressure = 650 kPa • Piston stroke = 120 mm • Piston bore = 100 mm, • Net Brake Load = 350 N • Torque arm = 0.40 m (Shaft Torque = Net Brake Load × Torque arm) Determine the: (a) Engine indicated power, (b) Brake power, (c) Brake thermal efficiency, (d) Friction power, and (e) Mechanical efficiency.
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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A 4-cylinder, 4-stroke engine gave the following results when tested on a test bed and the following readings were obtained.
• Shaft speed = 4500 rev/min
• Fuel consumption = 2.5 g/s
• Fuel Calorific Value = 44 MJ/kg
• Indicative mean effective pressure = 650 kPa
• Piston stroke = 120 mm
• Piston bore = 100 mm,
• Net Brake Load = 350 N
• Torque arm = 0.40 m
(Shaft Torque = Net Brake Load × Torque arm) Determine the:
(a) Engine indicated power, (b) Brake power, (c) Brake thermal efficiency, (d) Friction power, and (e)
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