Q1) Select TRUE or FALSE For the Following Statements: 1. When some steam extracted from the turbine to pre-heat the liquid which is exiting the pump this process is called Regeneration. 2. In closed feed-water heater the extracted steam from the turbine is mixed directly with the incoming subcooled water to produce saturated steam at the extraction steam pressure. 3. An open feed-water heater is treated as a mixing chamber. 4. In closed feed-water heater type, we need an additional pump for each closed feed- water. 5. Cogeneration is the simultaneous generation of electricity and steam. net work 6. The utilization factor for cogeneration plant = total heat input 7. In bottoming cycle cogeneration the steam is used directly for process steam requirements, the turbine in this case is called a back-pressure turbine. 8. For the following fig. the turbine and the pump work ideally 9. 4s

Q1) Select TRUE or FALSE For the Following Statements: 1. When some steam extracted from the turbine to pre-heat the liquid which is exiting the pump this process is called Regeneration. 2. In closed feed-water heater the extracted steam from the turbine is mixed directly with the incoming subcooled water to produce saturated steam at the extraction steam pressure. 3. An open feed-water heater is treated as a mixing chamber. 4. In closed feed-water heater type, we need an additional pump for each closed feed- water. 5. Cogeneration is the simultaneous generation of electricity and steam. net work 6. The utilization factor for cogeneration plant = total heat input 7. In bottoming cycle cogeneration the steam is used directly for process steam requirements, the turbine in this case is called a back-pressure turbine. 8. For the following fig. the turbine and the pump work ideally 9. 4s

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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A reheat cycle with two stages of reheating is executed with steam expanding initially from 200 bar (20 Mpaa) and 540 deg C. The 2 reheater pressures are 40 bar (4 Mpaa) and 10 bar (1 Mpaa) and the steam leaves each reheater at 540 deg C. Steam is bled in between two reheating sessions at a pressure equal to 20 and 15 bars into 2 open feedwater heaters. Condensation occurs at 60 deg C. All expansion and compression efficiencies are 90 %. There is a total of 10.3 kg/sec of steam (total mass flow rate m) circulated in the cycle. Answer the following: fill up the blanks in the items below: Equipment layout and TS diagram for the cycle. Ideal turbine work (KW) Ans:_______________________________ Actual mass of steam bled into the open heater m1’= _____________kg/sec for the heater nearest to the SGU/boiler and m2’ = _____________________kg/sec for the heater nearest to the condenser. Actual engine efficiency (%) Answer: _______________________ Actual Rankine cycle efficiency %…
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