A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at 300 mm HG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for 10 kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Ideal heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Actual) Answer: 4. Actual Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. If the generator efficiency = 95%, brake engine efficiency = 90% what is the combined work in KW? Answer: 8. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 12 deg C and leaves at 21 deg C, find amount of cooling water needed by the condenser in kg/sec. (ACTUAL) Answer: 9. Torque at the dynamometer if the engine is running at 900 rpm. Answer: 10. Combined Steam rate Answer
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at 300 mm HG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for 10 kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Ideal heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Actual) Answer: 4. Actual Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. If the generator efficiency = 95%, brake engine efficiency = 90% what is the combined work in KW? Answer: 8. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 12 deg C and leaves at 21 deg C, find amount of cooling water needed by the condenser in kg/sec. (ACTUAL) Answer: 9. Torque at the dynamometer if the engine is running at 900 rpm. Answer: 10. Combined Steam rate Answer
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Transcribed Image Text:A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH.
Condensation occurs at 300 mm HG vac. All expansion and compression efficiencies are 90 %.
Sketch the equipment layout and the TS diagram.
Answer the following for 10 kg/sec of steam circulated and fill up the blanks in the items below:
1.
TS diagram with the cycle showing correct location of points with respect to saturation dome line
with ne and nc = 90%.
Ideal heat rate in KJ/KW-hr Answer:
3. Heat rejected at the condenser in KW (Actual) Answer:
2.
ܩ
ܩ
ܝ
ܤ
ܘ
4.
Actual Rankine engine efficiency % Answer:
Ideal Rankine cycle efficiency % Answer:
6. Actual Rankine cycle efficiency using pump and turbine work % Answer:
7.
If the generator efficiency = 95%, brake engine efficiency = 90% what is the combined work in KW?
Answer:
8.
If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 12 deg C and leaves at 21 deg C,
find amount of cooling water needed by the condenser in kg/sec. (ACTUAL) Answer:
9.
Torque at the dynamometer if the engine is running at 900 rpm. Answer:
10. Combined Steam rate Answer
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Transcribed Image Text:4. Actual Rankine engine efficiency % Answer:
5. Ideal Rankine cycle efficiency % Answer:
6. Actual Rankine cycle efficiency using pump and turbine work % Answer:
7. If the generator efficiency = 95%, brake engine efficiency = 90% what is the combined work in KW?
Answer:
8. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 12 deg C and leaves at 21 deg C,
find amount of cooling water needed by the condenser in kg/sec. (ACTUAL) Answer:
9. Torque at the dynamometer if the engine is running at 900 rpm. Answer:
10. Combined Steam rate Answer
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