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A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with re to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer:

A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with re to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer:

Refrigeration and Air Conditioning Technology (MindTap Course List)
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter47: High-pressure, Low-pressure, And Absorption Chilled-water Systems
Section: Chapter Questions
Problem 13RQ: The subcooling temperature in a condenser can be measured by taking the difference between the A....
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Use Mpa unit

Sn = 7

 

A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer: 4. Ideal Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. Actual Rankine cycle efficiency using Qa and Qr values % Answer: 8. If the generator efficiency = 85.5%, and turbine bearing friction is negligible, what is the combined work in KW? Answer: 9. 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: 10. Torque at the dynamometer in Mega Joules if the engine is running at 3600 rpm. Answer:
Transcribed Image Text:A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer: 4. Ideal Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. Actual Rankine cycle efficiency using Qa and Qr values % Answer: 8. If the generator efficiency = 85.5%, and turbine bearing friction is negligible, what is the combined work in KW? Answer: 9. 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: 10. Torque at the dynamometer in Mega Joules if the engine is running at 3600 rpm. Answer:
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A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer: 4. Ideal Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. Actual Rankine cycle efficiency using Qa and Qr values % Answer: 8. If the generator efficiency = 85.5%, and turbine bearing friction is negligible, what is the combined work in KW? Answer: 9. 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: 10. Torque at the dynamometer in Mega Joules if the engine is running at 3600 rpm. Answer:
Transcribed Image Text:A Rankine cycle is executed with steam expanding initially from 20 MPaa and 150 deg SH. Condensation occurs 350 mmHG vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 50/SN) kg/sec of steam circulated and fill up the blanks in the items below: 1. TS diagram with the cycle and equipment layout showing correct location of points with respect to saturation dome line with ne and nc = 90%. 2. Actual heat rate in KJ/KW-hr Answer: 3. Heat rejected at the condenser in KW (Ideal) Answer: 4. Ideal Rankine engine efficiency % Answer: 5. Ideal Rankine cycle efficiency % Answer: 6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 7. Actual Rankine cycle efficiency using Qa and Qr values % Answer: 8. If the generator efficiency = 85.5%, and turbine bearing friction is negligible, what is the combined work in KW? Answer: 9. 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: 10. Torque at the dynamometer in Mega Joules if the engine is running at 3600 rpm. Answer:
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