A certain ideal gas (unknown) inside a close piston-cylinder assembly undergoes a set of processes that composed of Isothermal expansion from State point 1 to state point 2, Isometric heat rejection from state point 2 to state point 3, and Isentropic compression from state point 3 back to the initial condition. If the maximum pressure is 3000kPa and maximum and minimum volume is 200cm and 50cm', analyze the problem and perform the following: a. Draw and label the graph of this set of processes in the P-V and T-S diagram showing the state point numbers and energy directions. b. From the known ideal gases as shown in Table 1.0, select the best suited ideal gas to attain the processes stated if the lowest pressure is limited to 629.8kPa. Assume a constant specific heat. c. For the selected ideal gas from b, compute the work of compression (kJ/kg), work of expansion (kJ/kg), and heat rejected (kJ/kg) Table 1.0: Ideal gas specific heats of various common gases Gas constant, R Gas Formula kJ/kg-K kikg. K kikg-K 1.400 1.667 1.091 Air 0.2870 1.005 0.5203 1.7164 0.846 1.040 0.718 0.3122 1.5734 Argon Butane 0.2081 0.1433 0.1889 0.2968 Carbon diaxide Carbon monoxide 0.657 1.289 0.744 1.400 Ethane 0.2765 0.2964 2.0769 4.1240 0.5182 0.4119 0.2968 1.7662 1.5482 5.1926 1.4897 1.2518 3.1156 10.183 1.7354 0.6179 0.743 1.186 1.237 1.667 1.405 1.299 Ethylene Helium C,H. Не Hydrogen Methane 14.307 CH, 2.2537 1.0299 1.039 Neon Ne 1.667 N, CHa 1.400 Nitrogen Octane Oxygen Propane Steam 0.0729 0.2598 0.1885 1.7113 0.918 1.6794 1.6385 0.658 1.4909 1.044 1.395 1.126 1.327 CH. H,0 0.4615 1.8723 1.4108
A certain ideal gas (unknown) inside a close piston-cylinder assembly undergoes a set of processes that composed of Isothermal expansion from State point 1 to state point 2, Isometric heat rejection from state point 2 to state point 3, and Isentropic compression from state point 3 back to the initial condition. If the maximum pressure is 3000kPa and maximum and minimum volume is 200cm and 50cm', analyze the problem and perform the following: a. Draw and label the graph of this set of processes in the P-V and T-S diagram showing the state point numbers and energy directions. b. From the known ideal gases as shown in Table 1.0, select the best suited ideal gas to attain the processes stated if the lowest pressure is limited to 629.8kPa. Assume a constant specific heat. c. For the selected ideal gas from b, compute the work of compression (kJ/kg), work of expansion (kJ/kg), and heat rejected (kJ/kg) Table 1.0: Ideal gas specific heats of various common gases Gas constant, R Gas Formula kJ/kg-K kikg. K kikg-K 1.400 1.667 1.091 Air 0.2870 1.005 0.5203 1.7164 0.846 1.040 0.718 0.3122 1.5734 Argon Butane 0.2081 0.1433 0.1889 0.2968 Carbon diaxide Carbon monoxide 0.657 1.289 0.744 1.400 Ethane 0.2765 0.2964 2.0769 4.1240 0.5182 0.4119 0.2968 1.7662 1.5482 5.1926 1.4897 1.2518 3.1156 10.183 1.7354 0.6179 0.743 1.186 1.237 1.667 1.405 1.299 Ethylene Helium C,H. Не Hydrogen Methane 14.307 CH, 2.2537 1.0299 1.039 Neon Ne 1.667 N, CHa 1.400 Nitrogen Octane Oxygen Propane Steam 0.0729 0.2598 0.1885 1.7113 0.918 1.6794 1.6385 0.658 1.4909 1.044 1.395 1.126 1.327 CH. H,0 0.4615 1.8723 1.4108
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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Transcribed Image Text:A certain ideal gas (unknown) inside a close piston-cylinder assembly undergoes a set of processes
that composed of Isothermal expansion from State point 1 to state point 2, Isometric heat rejection
from state point 2 to state point 3, and Isentropic compression from state point 3 back to the initial
condition. If the maximum pressure is 3000kPa and maximum and minimum volume is 200cm and
50cm', analyze the problem and perform the following:
a. Draw and label the graph of this set of processes in the P-V and T-S diagram showing the state
point numbers and energy directions.
b. From the known ideal gases as shown in Table 1.0, select the best suited ideal gas to attain the
processes stated if the lowest pressure is limited to 629.8kPa. Assume a constant specific heat.
c. For the selected ideal gas from b, compute the work of compression (kJ/kg), work of expansion
(kJ/kg), and heat rejected (kJ/kg)
Table 1.0: Ideal gas specific heats of various common gases
Gas constant, R
kJ/kg-K
kikg K
kkg-K
Gas
Formula
Air
0.2870
0.2081
0.1433
1.005
0.5203
1.7164
0.846
1.040
0.718
0.3122
1.5734
1.400
1.667
1.091
1.289
1.400
Argon
Butane
Ar
C,H,0
CO,
Carbon dioxide
Carbon monoxide
Ethane
0.1889
0.657
0.2968
0.744
0.2765
0.2964
2.0769
1.7662
1.5482
5.1926
14.307
2.2537
1.0299
1.039
1.7113
0.918
1.6794
1.4897
1.2518
3.1156
1.186
1.237
1.667
1.405
1.299
1.667
1.400
Ethylene
Helium
C,H.
Не
Hydrogen
Methane
Neon
Nitrogen
H,
CH.
Ne
4.1240
0.5182
0.4119
0.2968
10.183
1.7354
0.6179
N,
CHa
0.743
Octane
0.0729
0.2598
0.1885
1.6385
0.658
1.4909
1.044
Oxygen
Propane
Steam
1.395
C,H,
H,0
1.126
0.4615
1.8723
1.4108
1.327
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