1) 111) iv) v) The highest temperature and pressure that the cycle can attain The net work output of the process The thermal efficiency The mean effective pressure for the cycle Show the pathway of the Otto Cycle in a P-v diagram. Refer to Figure 1 for additional information.

1) 111) iv) v) The highest temperature and pressure that the cycle can attain The net work output of the process The thermal efficiency The mean effective pressure for the cycle Show the pathway of the Otto Cycle in a P-v diagram. Refer to Figure 1 for additional information.

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

Otto Cycle is commonly used as an ideal cycle for spark-ignition engines. Given an Ideal Otto
Cycle has a compression ratio of 10. The properties of air before being compressed
isentropically are 120 kPa and 27 °C. During the constant-volume heat-addition process, 500
kJ/kg of heat is transferred to the air. Using variation of specific heats of air with temperature,
determine:
1)
11)
111)
iv)
v)
The highest temperature and pressure that the cycle can attain
The net work output of the process
The thermal efficiency
The mean effective pressure for the cycle
Show the pathway of the Otto Cycle in a P-v diagram. Refer to Figure 1 for
additional information.
Air
U
2
↑
(1)
Air
9in
(2)-(3)
Air
(3)
Air
qout
(4)-(1)
Isentropic
compression
V=const.
heat addition
Isentropic
expansion
v=const.
heat rejection
Figure 1 A schematic representation on the operation of Otto Cycle

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