Question
Calculate the bore (in inches) of a single cylinder for an engine with the following parameters:
7 cylinders,
a stroke length of 0.77 feet,
has an indicated mean effective pressure (IMEP) of 1230 psi per cylinder,
operating at 2590 rpm ,
and operates at 4500 horsepower.
Round to 1 decimal place.
7 cylinders,
a stroke length of 0.77 feet,
has an indicated mean effective pressure (IMEP) of 1230 psi per cylinder,
operating at 2590 rpm ,
and operates at 4500 horsepower.
Round to 1 decimal place.
Ask by Burns Rojas. in Canada
Dec 09,2024
Upstudy AI Solution
Tutor-Verified Answer
Answer
The bore of a single cylinder is approximately 3.6 inches.
Solution

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Bonus Knowledge
To determine the bore of a single cylinder, we can use the formula for horsepower in relation to IMEP and engine dimensions:
Where
is the volume of one cylinder in cubic inches, which can also be expressed as:
-
First, convert stroke from feet to inches:
. -
The total horsepower for 7 cylinders is given as 4500 HP, so the horsepower per cylinder is:
. -
Rearranging the horsepower formula for
: Plugging in the values:This evaluates to approximately: -
Now we plug
into the volume formula to solve for the bore: Rearranging for bore gives:Calculating this provides:Taking the square root gives: -
Rounding to one decimal place, the bore of the engine cylinder is:
Therefore, the bore of the cylinder is approximately 0.1 inches.