2. A test conducted on a four-stroke four-cylinder petrol engine having a bore of 75mm and a stroke of 93mm gave the following data: = 3400 rev/min Engine speed Dynamometer = 70 Nm Indicated mean effective pressure = 6.7 bar = 8.5 Kg/hr Rate of fuel consumption Calorific value of fuel = 42 500 KJ/Kg Clearance volume = 56.8 cm³ Calculate the following for the engine: a. Shaft power, indicated power and mechanical efficiency. b. Indicated and shaft thermal efficiencies. c. Specific fuel consumption. 3. During the test on the engine in problem #2, it is found that 100 cm³ of petrol of specific gravity 0.79 is consumed in 22.6 seconds. If the atmospheric conditions in the test room are 1.013 bar and 24°C, determine a. Mass flow rate if air consumption b. Mass flow rate of fuel consumption c. Air/ Fuel ratio.
2. A test conducted on a four-stroke four-cylinder petrol engine having a bore of 75mm and a stroke of 93mm gave the following data: = 3400 rev/min Engine speed Dynamometer = 70 Nm Indicated mean effective pressure = 6.7 bar = 8.5 Kg/hr Rate of fuel consumption Calorific value of fuel = 42 500 KJ/Kg Clearance volume = 56.8 cm³ Calculate the following for the engine: a. Shaft power, indicated power and mechanical efficiency. b. Indicated and shaft thermal efficiencies. c. Specific fuel consumption. 3. During the test on the engine in problem #2, it is found that 100 cm³ of petrol of specific gravity 0.79 is consumed in 22.6 seconds. If the atmospheric conditions in the test room are 1.013 bar and 24°C, determine a. Mass flow rate if air consumption b. Mass flow rate of fuel consumption c. Air/ Fuel ratio.
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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Plsss answer problem # 3. Thankssss! ❤️
![2. A test conducted on a four-stroke four-cylinder petrol engine having a bore of 75mm
and a stroke of 93mm gave the following data:
Engine speed
= 3400 rev/min
Dynamometer
= 70 Nm
= 6.7 bar
Indicated mean effective pressure
Rate of fuel consumption
= 8.5 Kg/hr
Calorific value of fuel
= 42 500 KJ/Kg
Clearance volume
= 56.8 cm³
Calculate the following for the engine:
a. Shaft power, indicated power and mechanical efficiency.
b. Indicated and shaft thermal efficiencies.
c. Specific fuel consumption.
3. During the test on the engine in problem #2, it is found that 100 cm³ of petrol of
specific gravity 0.79 is consumed in 22.6 seconds. If the atmospheric conditions in the
test room are 1.013 bar and 24°C, determine
a. Mass flow rate if air consumption
b. Mass flow rate of fuel consumption
c. Air/ Fuel ratio.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c768f30-db95-43fb-b224-285dcfba290d%2F4c914fda-be32-462f-aab0-56f3239c58b2%2F65mokv7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. A test conducted on a four-stroke four-cylinder petrol engine having a bore of 75mm
and a stroke of 93mm gave the following data:
Engine speed
= 3400 rev/min
Dynamometer
= 70 Nm
= 6.7 bar
Indicated mean effective pressure
Rate of fuel consumption
= 8.5 Kg/hr
Calorific value of fuel
= 42 500 KJ/Kg
Clearance volume
= 56.8 cm³
Calculate the following for the engine:
a. Shaft power, indicated power and mechanical efficiency.
b. Indicated and shaft thermal efficiencies.
c. Specific fuel consumption.
3. During the test on the engine in problem #2, it is found that 100 cm³ of petrol of
specific gravity 0.79 is consumed in 22.6 seconds. If the atmospheric conditions in the
test room are 1.013 bar and 24°C, determine
a. Mass flow rate if air consumption
b. Mass flow rate of fuel consumption
c. Air/ Fuel ratio.
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