Problem 1 In a Rankine Thermodynamic cycle, steam leaves the boiler and enters the turbine at 600 psia, 800 °F. The condenser pressure is 1 psia. After presenting a schematic of the problem in addition to clearly labeled and explained T-s and h-s diagrams, you are asked to determine the following: (a) Pump work required per lbm of working fluid. (b) Quality of fluid at turbine inlet. (d) (e) (f) Work output of turbine per lbm of working fluid. Energy input to the boiler per lbm of working fluid. Heat rejection by the condenser per Ibm of working fluid. Determine the cycle thermal efficiency.

Problem 1 In a Rankine Thermodynamic cycle, steam leaves the boiler and enters the turbine at 600 psia, 800 °F. The condenser pressure is 1 psia. After presenting a schematic of the problem in addition to clearly labeled and explained T-s and h-s diagrams, you are asked to determine the following: (a) Pump work required per lbm of working fluid. (b) Quality of fluid at turbine inlet. (d) (e) (f) Work output of turbine per lbm of working fluid. Energy input to the boiler per lbm of working fluid. Heat rejection by the condenser per Ibm of working fluid. Determine the cycle thermal efficiency.

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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Question

Problem 1
In a Rankine Thermodynamic cycle, steam leaves the boiler and enters
the turbine at 600 psia, 800 °F. The condenser pressure is 1 psia. After
presenting a schematic of the problem in addition to clearly labeled
and explained T-s and h-s diagrams, you are asked to determine the
following:
(a) Pump work required per Ibm of working fluid.
Quality of fluid at turbine inlet.
Work output of turbine per lbm of working fluid.
Energy input to the boiler per lbm of working fluid.
Heat rejection by the condenser per Ibm of working fluid.
Determine the cycle thermal efficiency.
(d)
(e)
(f)

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Problem 2 Consider a reheat Rankine cycle utilizing steam. Steam leaves the boiler and enters the turbine at 600 psia, 800 °F. After expansion in the turbine to 60 psia, the steam is reheated to 800 °F and then expanded in the low-pressure turbine to 1 psia. After presenting a schematic of the problem in addition to clearly labeled and explained T-s and h-s diagrams, you are asked to determine the following: (a) Pump work required per Ibm of working fluid. Quality of fluid at turbine inlet. (b) (d) (e) (f) Work output of turbine per Ibm of working fluid. Energy input to the boiler per Ibm of working fluid. Heat rejection by the condenser per Ibm of working fluid. Determine the cycle thermal efficiency.
May you please be as detailled as possible. Thank you
Rankine Cycle (Thermodynamics) Show the illustration diagram and complete and step by step solution.
Superheated steam from the boiler expands in the turbine from inlet pressure p₁ of 50 bar and temperature 7 of 487 °C to condenser pressure p2 of 18 kPa. In the condenser, the steam condenses to saturated water. The isentropic efficiency of the turbine ns is 78.0 %. The mass flow of steam 9m,h is 140 kg/s. In the boiler, heat flow rate to the circulating fluid (water/steam) is 458 MW. Read from h,s-diagram and calculate: 1. Enthalpy of the superheated steam h kJ/kg (with zero decimal accuracy) 2. Enthalpy of the steam at turbine outlet after isentropic expansion h₂s kJ/kg (with zero decimal accuracy) 3. Enthalpy of the steam at turbine outlet h₂ kJ/kg (with zero decimal accuracy) 4. Turbine power Pt MW (with one decimal accuracy) 5. Steam content at the turbine outlet X2 kJ/kg (with two decimal accuracy) 6. Enthalpy after condenser h3 kJ/kg (with zero decimal accuracy) 7. Thermal power of condenser Qc 8. Thermal efficiency of the plant n MW (with one decimal accuracy) % (with one…
A power station consists of a four-unit coal fired power station, having a combined capacity of 2,880 MW. The current efficiency of each unit is around 37.7%. You are asked to improve the thermal efficiency of each unit by lowering the condenser pressure. To simplify this task, assume that each unit operates on a simple ideal Rankine cycle. If the superheated vapour enters the turbine at 10 MPa and 500 ֯C and is cooled in the condenser at a lower pressure 10 kPa, determine the quality of the steam at the turbine exit and the thermal efficiency of the cycle for one unit.