COMBUSTION ENĞINEERING PROBLEM 1: A Diesel engine overcome a friction of 200 HP and delivers 1000 BHP. Air consumption is 90 kg per minute. The Air/fuel ratio is 15 to 1. Find the following: 1. Indicated horsepower 2. The Mechanical efficiency 3. The Brake Specific Fuel Consumption

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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FINALS ASSIGNMENT IN ME 3215
COMBUSTION ENGINEERING
PROBLEM 1:
A Diesel engine overcome a friction of 200 HP and delivers 1000 BHP. Air consumption is 90 kg per minute.
The Air/fuel ratio is 15 to 1. Find the following:
1. Indicated horsepower
2. The Mechanical efficiency
3. The Brake Specific Fuel Consumption
PROBLEM 2:
The brake thermal efficiency of a diesel engine is 30 percent. If the air to fuel ratio by weight is 20 and the
calorific value of the fuel used is 41800 kJ/kg, what brake mean effective pressure may be expected at
S.P. conditions (Standard Temperature and pressure means 15.6°C and 101.325 kPa, respectively)?
Transcribed Image Text:FINALS ASSIGNMENT IN ME 3215 COMBUSTION ENGINEERING PROBLEM 1: A Diesel engine overcome a friction of 200 HP and delivers 1000 BHP. Air consumption is 90 kg per minute. The Air/fuel ratio is 15 to 1. Find the following: 1. Indicated horsepower 2. The Mechanical efficiency 3. The Brake Specific Fuel Consumption PROBLEM 2: The brake thermal efficiency of a diesel engine is 30 percent. If the air to fuel ratio by weight is 20 and the calorific value of the fuel used is 41800 kJ/kg, what brake mean effective pressure may be expected at S.P. conditions (Standard Temperature and pressure means 15.6°C and 101.325 kPa, respectively)?
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