please answer 6 to 10 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 linewith ne and nc = 90%.2. Ideal heat rate in KJ/KW-hr Answer: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: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:Torque at the dynamometer if the engine is running at 900 rpm. Answer:10. Combined Steam rate Answer

Given DataP1=20MPaP2=P3=300mm of Hg=40.025kPaηP=90%m˙=10kg/sTo=21°CTi=12°C ***As per our company…

6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 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,

6. Actual Rankine cycle efficiency using pump and turbine work % Answer: 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,

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.27P

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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: 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: Heat rejected at the condenser in KW (Actual) Answer: Actual Rankine engine efficiency % Answer: Ideal Rankine cycle efficiency % Answer:
PROBLEM: 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: 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)…
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at T = 86.49 degree Celsius. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 25/10 ) kg/sec of steam circulated and fill up the blanks in theitems below:1. TS diagram with the cycle showing correct location of points with respect to saturation domeline with ne and nc = 90%.2. If the generator efficiency = 95%, brake engine efficiency = 90% what is the brake work in KW?Answer: ______________________3. Actual Steam Rate for the engine in Kg/KW-hr with efficiency values at item 2. Answer: _________________________
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at 399.967 millibars vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + (SN/5) ) kg/sec of steam circulate 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%. 1. Ideal Rankine engine efficiency % Answer: _______________________ 2. Ideal Rankine cycle efficiency % Answer: _______________________ 3. Actual Rankine cycle efficiency using pump and turbine work % Answer: _______________ 7. Actual Rankine cycle efficiency using Qa and Qr values % Answer: _______________ 4. If the generator efficiency = 95%, brake engine efficiency = 90% what is the combined work in KW? Answer: ____________________ 5. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 12 deg C and leaves…
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at 399.967 millibars vac. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + (SN/5) ) 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. 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 = 95%, brake engine efficiency = 90% what is…
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at T = 86.49 degree Celsius. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + SN/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. If the generator efficiency = 95%, brake engine efficiency = 90% what is the brake work in KW? Answer: 3. Actual Steam Rate for the engine in Kg/KW-hr with efficiency values at item 2. Answer: 4. Heat rejected at the condenser in KW (Ideal) Answer: 5. Ideal Rankine engine efficiency (% ) Answer: 6. Ideal Rankine cycle efficiency using work of the pump and turbine values % Answer: 7. Actual Rankine cycle efficiency using pump and turbine work % Answer: 8. Actual Rankine cycle efficiency using Qa and Or values % Answer:…
A reheater cycle with two stages of reheating is executed with steam expandinginitially from 20.544 Mpa and 540oC. The pressures of two reheaters are 3.2544 Mpaand 0.85544 Mpa, and the steam leaves each reheater at 540 oC. Condensation occursat 70 oC. Calculate W, ec and ee.
A reheater cycle with two stages of reheating is executed with steam expandinginitially from 20.547 Mpa and 540 oC. The pressures of two reheaters are 3.2547 Mpaand 0.85547 Mpa, and the steam leaves each reheater at 540oC. Condensation occurs at 70oC. Calculate W, ec and ee. Put state 1, 2 and so on, the cycle analysis. Make it clear format.
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case:
3.) An ammonia compressor operates at evaporator pressure of 316.02 kPa and a condenser pressure of 1557 kPa. A twin-cylinder compressor with bore to stroke ratio of 0.85 is to used at 1200 rpm. The actual volumetric efficiency is 92% and compression and mechanical efficiency is 78% and 80% respectively. For a cooling capacity of 25 TR, (a) the sketch the p-h diagram labeling the evaporating and condensing temperature and pressures (b) define the all properties of ammonia taken from saturation table. Determine (c) the quantity of cooling water in the condenser in kg/min if the increase in temperature is 8°C, (d) the bore and stroke expressed in cm and (e) the size of the driving motor in hp. Given: h2 = h at 1557 kPa and s2 = s1 1695 kJ/kg
4. The condensing pressure for a Rankıne engine Is I Calculate the net work for 1 kg of steam and the thermal efficiency when the steam at the beginning of expansion is at 50 bar and (a) saturated, (b) 350°C, and (c) 640°C. Ans. (a) 627.2 kJ/kg, 26.4%; (b) 727.3 kJ/kg, 27.5%; (c) 1079.49 kJ/kg, 32.35% ot 2 15 MPà
A Rankine cycle is executed with steam expanding initially from 20 MPaa and 100 deg SH. Condensation occurs at T = 86.49 degree Celsius. All expansion and compression efficiencies are 90 %. Sketch the equipment layout and the TS diagram. Answer the following for (m = 10 + 25/10 ) kg/sec of steam circulated and fill up the blanks in theitems below: 4. Heat rejected at the condenser in KW (Ideal) Answer: ___________________5. Ideal Rankine engine efficiency (% ) Answer: _________________________6. Ideal Rankine cycle efficiency using work of the pump and turbine values % Answer: _________________________