2. Calculate the thermal efficiency of the cycle. O.375 kƆ/kg 3. Calculate the maximum thermal efficiency of the cycle 4. Show the state points and process lines for the maximum efficiency (ideal) cycle on your property diagram. 5. Is the cycle possible or impossible? Why?

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

Please answer questions 3, 4 and 5.

Problem 2 :
-200
100
200
600
1000
1400
1800
2200
2600
3000
60
3400
R-718
3800
100
40
reaterteam)
700
600
400
Relerence state
200
60
150 kg/m
100
80
60
20
for saturated qud at 001'C
40
10
20
340
320
6.
300
280
10
20
260
6
240
4
10
80
60
220
1
200
2
0.6
180
4.0
0.4
160
1
20
0.6
140
0.2
0.4
1,0
0.80
0.60
120
0.1
0.2
100°C
0 40
0.06
0.1
0.04
020
0.06
0.02
0.10
0. 080
0.060
0.04
0.01
0.02
0.040
0.006
0.01
0.004
0 020
0.006
0.002
0010
0.008
0.006
0.004
0.001
0.002
0.004
0.0006
100kung
Triple Point 0òic
Sold • Vapor Regon
0.001
0.0004
-200
0.002
200
600
1000
1400
0.0006
1800
2200
2600
0.0004
3800
Propertes computed wth NEST REFPROP
3000
3400
ENTHALPY, kJ/kg
version 70
Based on ormuation of Wagrer and Pruss (2002)
-00
3.0 = N -
t 0RE- -
-5.0
64
2.
PRESSURE, MPa
Transcribed Image Text:Problem 2 : -200 100 200 600 1000 1400 1800 2200 2600 3000 60 3400 R-718 3800 100 40 reaterteam) 700 600 400 Relerence state 200 60 150 kg/m 100 80 60 20 for saturated qud at 001'C 40 10 20 340 320 6. 300 280 10 20 260 6 240 4 10 80 60 220 1 200 2 0.6 180 4.0 0.4 160 1 20 0.6 140 0.2 0.4 1,0 0.80 0.60 120 0.1 0.2 100°C 0 40 0.06 0.1 0.04 020 0.06 0.02 0.10 0. 080 0.060 0.04 0.01 0.02 0.040 0.006 0.01 0.004 0 020 0.006 0.002 0010 0.008 0.006 0.004 0.001 0.002 0.004 0.0006 100kung Triple Point 0òic Sold • Vapor Regon 0.001 0.0004 -200 0.002 200 600 1000 1400 0.0006 1800 2200 2600 0.0004 3800 Propertes computed wth NEST REFPROP 3000 3400 ENTHALPY, kJ/kg version 70 Based on ormuation of Wagrer and Pruss (2002) -00 3.0 = N - t 0RE- - -5.0 64 2. PRESSURE, MPa
PROBLEM 2
Given the following properties and processes for a steam heat engine cycle with Mdot_cycle=12 kg/s
Р (MPa) | т (с)
quality h
(k/kg)
N/A 3425 6.852
0.83 2200
170
State
Process
point
(kJ/kg-K)
1
500
45
Isentropc
Isobaric
2
0.01
6.852
3
40
0.01
N/A
0.6
from 2-3
4
7.5
42
N/A
200
Isentropic
from 3-4
O.6
N/A
N/A
5
35
150
0.5
7
3400 6.8
6
500
1. Show state points and process lines on a property diagram.
2. Calculate the thermal efficiency of the cycle. O.375 kƆ/kg
3. Calculate the maximum thermal efficiency of the cycle
4. Show the state points and process lines for the maximum efficiency (ideal) cycle on your
property diagram.
5. Is the cycle possible or impossible? Why?
Transcribed Image Text:PROBLEM 2 Given the following properties and processes for a steam heat engine cycle with Mdot_cycle=12 kg/s Р (MPa) | т (с) quality h (k/kg) N/A 3425 6.852 0.83 2200 170 State Process point (kJ/kg-K) 1 500 45 Isentropc Isobaric 2 0.01 6.852 3 40 0.01 N/A 0.6 from 2-3 4 7.5 42 N/A 200 Isentropic from 3-4 O.6 N/A N/A 5 35 150 0.5 7 3400 6.8 6 500 1. Show state points and process lines on a property diagram. 2. Calculate the thermal efficiency of the cycle. O.375 kƆ/kg 3. Calculate the maximum thermal efficiency of the cycle 4. Show the state points and process lines for the maximum efficiency (ideal) cycle on your property diagram. 5. Is the cycle possible or impossible? Why?
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