1. Monatomic Engine -- What is the efficiency of this engine (see figure 4.9) if it were run with a monatomic gas (instead of a diatomic gas?)**23.1% is not right answer.**2. Heat Pump -- Suppose now we run the triangle cycle (figure 4.9 above) in a reverse (counter-clockwise) cycle. If the gas is diatomic, what is the coefficient of performance for the heat pump used as a HEATER? Careful: remember that when the cycle is run counter-clockwise, the negative heats are now heats and the positive heats are now heats. A. 5B. 10C. 4D. 9 4:17 1thermal efficiency should give you the samevalue. See if you can do the same problemabove only with a diatomic gas. Can you reversethe cycle and find the coefficient ofperformance?Example: What is the thermal efficiency of thetriangle cycle illustrated below? The gas isdiatomic.P(Pa) ?2.2I5 v(m)10[4.9]Let's use the definition of thermal efficiency andthe fact that the usable output work Wang is justthe positive area of the shape (that is, the areaof a triangle):Ebh2(5m³)(6Pa)2QHWeng15JeQHQHQHWe now need to find the fuel heat Q, and3/3 answered!!

Solution: Given Data; To Find: (a) Efficiency of the engine working on the given cycle. (b) The…

Answered: Monatomic Engine -- What is the…

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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1. Monatomic Engine -- What is the efficiency of this engine (see figure 4.9) if it were run with a monatomic gas (instead of a diatomic gas?)

**23.1% is not right answer.**

2. Heat Pump -- Suppose now we run the triangle cycle (figure 4.9 above) in a reverse (counter-clockwise) cycle. If the gas is diatomic, what is the coefficient of performance for the heat pump used as a HEATER? Careful: remember that when the cycle is run counter-clockwise, the negative heats are now heats and the positive heats are now heats.

A. 5

B. 10

C. 4

D. 9

4:17 1
thermal efficiency should give you the same
value. See if you can do the same problem
above only with a diatomic gas. Can you reverse
the cycle and find the coefficient of
performance?
Example: What is the thermal efficiency of the
triangle cycle illustrated below? The gas is
diatomic.
P(Pa) ?
2.
2
I5 v(m)
10
[4.9]
Let's use the definition of thermal efficiency and
the fact that the usable output work Wang is just
the positive area of the shape (that is, the area
of a triangle):
Ebh
2
(5m³)(6Pa)
2
QH
Weng
15J
e
QH
QH
QH
We now need to find the fuel heat Q, and
3/3 answered
!!

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