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Q1. An SI engine operating at 1200 rpm has a 10.2 cm bore with the spark plug offset by 6 mm from center. The spark plug is fired at 20° BTDC. It takes 6.5° of engine rotation for combustion to develop and get into flame propagation mode, where the average flame speed is 15.8 m/s. Calculate: 1. Time of one combustion process (i.e. time for flame front to reach the furthest cylinder wall)? 2. Crank angle position at the end of combustion?

Q1. An SI engine operating at 1200 rpm has a 10.2 cm bore with the spark plug offset by 6 mm from center. The spark plug is fired at 20° BTDC. It takes 6.5° of engine rotation for combustion to develop and get into flame propagation mode, where the average flame speed is 15.8 m/s. Calculate: 1. Time of one combustion process (i.e. time for flame front to reach the furthest cylinder wall)? 2. Crank angle position at the end of combustion?

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
Problem 1.1MA
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Q1. An SI engine operating at 1200 rpm has a 10.2 cm bore with the spark plug offset by 6 mm from center. The spark plug is fired at 20° 6TDC. It takes 6.5° of engine rotation for combustion to develop and get into flame propagation mode, where the average flame speed is 15.8 m/s. Calculate: 1. Time of one combustion process (i.e. time for flame front to reach the furthest cylinder wall)? 2. Crank angle position at the end of combustion?
Transcribed Image Text:Q1. An SI engine operating at 1200 rpm has a 10.2 cm bore with the spark plug offset by 6 mm from center. The spark plug is fired at 20° 6TDC. It takes 6.5° of engine rotation for combustion to develop and get into flame propagation mode, where the average flame speed is 15.8 m/s. Calculate: 1. Time of one combustion process (i.e. time for flame front to reach the furthest cylinder wall)? 2. Crank angle position at the end of combustion?
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