1a) The bore of each cylinder in a four-cylinder four-stroke internal combustion engine is 43 mm and the stroke for each piston is 130 mm. During testing, the engine runs at 85 revolutions per minute (rpm) with a pressure-volume indicator diagram showing a mean net area of 2.8 cm2 and a diagram length of 0.95 cm. The pressure scale on the indictor diagram is set to 165 kN/m2 per cm. Calculate the mean effective pressure (m.e.p) and the indicated power developed by this four-cylinder four-stroke engine. 1b) Explain why an engine cylinder experiences engine knock (or ‘knocking’) and give two effects of engine knock.
1a) The bore of each cylinder in a four-cylinder four-stroke internal combustion engine is 43 mm and the stroke for each piston is 130 mm. During testing, the engine runs at 85 revolutions per minute (rpm) with a pressure-volume indicator diagram showing a mean net area of 2.8 cm2 and a diagram length of 0.95 cm. The pressure scale on the indictor diagram is set to 165 kN/m2 per cm. Calculate the mean effective pressure (m.e.p) and the indicated power developed by this four-cylinder four-stroke engine. 1b) Explain why an engine cylinder experiences engine knock (or ‘knocking’) and give two effects of engine knock.
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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1a) The bore of each cylinder in a four-cylinder four-stroke internal combustion engine is 43 mm and the stroke for each piston is 130 mm. During testing, the engine runs at 85 revolutions per minute (rpm) with a pressure-volume indicator diagram showing a mean net area of 2.8 cm2 and a diagram length of 0.95 cm. The pressure scale on the indictor diagram is set to 165 kN/m2 per cm. Calculate the mean effective pressure (m.e.p) and the indicated power developed by this four-cylinder four-stroke engine.
1b) Explain why an engine cylinder experiences engine knock (or ‘knocking’) and give two effects of engine knock.
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