Answered: For an air standard Diesel Cycle,…

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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Question

For an air standard Diesel Cycle, determine the following:
1) Clearance volume (ft3)

2) Maximum temperature of the cycle (R)
3) Volume at the end of isentropic expansion (ft3)

4) Cut off ratio
5) Cycle efficiency (%)
6) Mass of air in the cylinder (lbm)
7) Heat added (Btu)
8) Heat rejected (Btu)
9) Work net (ft-lbf)
10) Mean effective pressure (psi)
The air ambient (surrounding) pressure and temperature are (Q and W). The volume
quantity is a single-cylinder engine with (B) Bore and (S) Stroke. The temperature after
isentropic compression is (E). Heat is added during the first 10% of the working stroke.
For other properties see table.

Note
 Use English units only
 The air gas constant should be R= 53.34 ft-lbf/lbm-R.
 Rankine=460+ degree Farenheit
 1btu=778 ft-lbf

* Specific heat should be computed from gas constant (R) and k.
R
k – 1
kR
Cp
k
* When solving, don't round off the computed value. Include all the decimal points
by storing the calculated values in your calculator. Only in the final answer will
you round off to 4 decimal places.
SN
w
в
E
k
psia
in
in
f
1
12
75
8.
13
951
1.35

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