assign1 - c Sketch the P-V diagram for each condition Keep...

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ME444 Assignment 1 Due September 13, 2011 (Only part 2 is the graded part) 1. Carefully read the notes in lesson 1 and be prepared to ask questions on September 6! 2. The diagram below shows the energy balance for a turbocharged diesel engine operation at a constant speed of 1500 RPM. a. If the bore of this single-cylinder engine is 95mm and the stroke 105mm, calculate the power output and the bmep for each condition. Give the answer in both SI and English units. b. What would one expect the volumetric efficiency to be for each condition and explain why. Assume that the system is boosted to 2 bar.
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Unformatted text preview: c. Sketch the P-V diagram for each condition. Keep in mind this is a boosted engine. On the first diagram, label the valve timing and approximate injection timing. d. Estimate fuel that would be consumed in one hour of operation for each condition. 35.2 40.7 42.1 41.9 41.9 40.9 38.5 37.4 37.4 36.6 15.9 13.8 14.6 14.8 14.8 8 7 5.9 5.9 6.7 0% 20% 40% 60% 80% 100% 156 430 1132 1350 1575 Input energy % BMEP, KPa Energy balance of turbocharged diesel at constant speed of 1500 RPM Oil, misc Cooling system Exhaust Brake power...
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