Mr. Atkinson is on trial is on trial for criminal negligence because his company’s steam boiler exploded. Mr. Atkinson’s job was to monitor the pressure in the boiler to make sure that it does not go above the safe limit of 6895kPa gauge. He testifies that just before the explosion, his control panel showed that the pressure was 5860kPa gauge, the temperature was 400oC, and the specific volume was 0.037 m3 per kg. All gauges were tested and found to be functional during the investigation following the explosion. The prosecutor says that Mr. Atkinson fell asleep while on duty. As a technical witness, what can you say about the case? Use the table below to get the specific gas constant of the steam. GAS MW k Cp kJ/kg-K Btu/lbm- 0R R kJ/kg-K ft-lb/lbm-0R Air 28.97 1.4 1.0047 0.24 0.287 53.34 Argon, Ar 39.95 1.666 0.5208 0.1244 0.2081 38.68 Carbon Dioxide, CO2 44.01 1.288 0.844 0.2016 0.1889 35.11 Helium, He 4.003 1.666 5.1954 1.241 2.077 386.04 Hydrogen, H2 2.016 1.4 14.3136 3.419 4.125 766.54 Methane, CH4 16.043 1.321 2.1347 0.5099 0.5183 96.33 Nitrogen, N2 28.06 1.399 1.0399 0.2484 0.2968 55.16 Octane, C8H18 114.23 1.046 1.6568 0.3952 0.0728 13.5 Oxygen, O2 32.00 1.395 0.9185 0.2194 0.2598 48.29 Steam, H2O 18.016 1.329 1.8646 0.4454 0.4615 85.77
READ CAREFULLY THE PROBLEM, SOLVE AND SHOW COMPLETE COMPUTATION AND SOLUTION.
Mr. Atkinson is on trial is on trial for criminal negligence because his company’s steam boiler exploded. Mr. Atkinson’s job was to monitor the pressure in the boiler to make sure that it does not go above the safe limit of 6895kPa gauge. He testifies that just before the explosion, his control panel showed that the pressure was 5860kPa gauge, the temperature was 400oC, and the specific volume was 0.037 m3 per kg. All gauges were tested and found to be functional during the investigation following the explosion. The prosecutor says that Mr. Atkinson fell asleep while on duty. As a technical witness, what can you say about the case? Use the table below to get the specific gas constant of the steam.
|
GAS |
MW |
k |
Cp kJ/kg-K Btu/lbm- 0R |
R kJ/kg-K ft-lb/lbm-0R |
|
Air |
28.97 |
1.4 |
1.0047 0.24 |
0.287 53.34 |
|
Argon, Ar |
39.95 |
1.666 |
0.5208 0.1244 |
0.2081 38.68 |
|
Carbon Dioxide, CO2 |
44.01 |
1.288 |
0.844 0.2016 |
0.1889 35.11 |
|
Helium, He |
4.003 |
1.666 |
5.1954 1.241 |
2.077 386.04 |
|
Hydrogen, H2 |
2.016 |
1.4 |
14.3136 3.419 |
4.125 766.54 |
|
Methane, CH4 |
16.043 |
1.321 |
2.1347 0.5099 |
0.5183 96.33 |
|
Nitrogen, N2 |
28.06 |
1.399 |
1.0399 0.2484 |
0.2968 55.16 |
|
Octane, C8H18 |
114.23 |
1.046 |
1.6568 0.3952 |
0.0728 13.5 |
|
Oxygen, O2 |
32.00 |
1.395 |
0.9185 0.2194 |
0.2598 48.29 |
|
Steam, H2O |
18.016 |
1.329 |
1.8646 0.4454 |
0.4615 85.77 |
Step by step
Solved in 2 steps with 1 images
