Fundamentals of Engineering Thermodynamics
8th Edition
ISBN: 9781118832301
Author: SHAPIRO
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Chapter 8.6, Problem 3E
To determine
The generation of electricity at power plant, transmission and distribution to the end users.
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Question 22: The superheated steam powers a steam turbine for the production of electrical power. The steam expands in the turbine and at an intermediate expansion pressure (0.1 MPa) a fraction is extracted for a regeneration process in a surface regenerator. The turbine has an efficiency of 90%.
It is requested:
Define the Power Plant Schematic
Analyze the steam power system considering the steam generator system in the attached figure
Determine the electrical power generated and the thermal efficiency of the plant
Perform an analysis on the power generated and thermal efficiency considering a variation in the steam fractions removed for regeneration
##Data:
The steam generator uses biomass from coconut shells to produce 4.5 tons/h of superheated steam;
The feedwater returns to the condenser at a temperature of 45°C (point A);
Monitoring of the operating conditions in the steam generator indicates that the products of combustion leave the system (point B) at a temperature of 500°C;…
This is an old practice exam question.
Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 700 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 × 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45°F. Use steam tables.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Determine the pressure at which reheating takes place. Use steam tables.
Find:
The reheat pressure is psia. (P4)Find thermal efficiencyFind m dot
Chapter 8 Solutions
Fundamentals of Engineering Thermodynamics
Ch. 8.6 - Prob. 1ECh. 8.6 - Prob. 2ECh. 8.6 - Prob. 3ECh. 8.6 - Prob. 4ECh. 8.6 - Prob. 5ECh. 8.6 - Prob. 6ECh. 8.6 - Prob. 7ECh. 8.6 - 8. What is the relationship between global climate...Ch. 8.6 - Prob. 9ECh. 8.6 - Prob. 10E
Ch. 8.6 - Prob. 11ECh. 8.6 - Prob. 12ECh. 8.6 - Prob. 13ECh. 8.6 - Prob. 1CUCh. 8.6 - Prob. 2CUCh. 8.6 - 3. The component of the Rankine cycle in which the...Ch. 8.6 - 4. A cycle that couples two vapor cycles so the...Ch. 8.6 - 5. The ratio of the pump work input to the work...Ch. 8.6 - 6. A shell-and-tube-type recuperator in which the...Ch. 8.6 - Prob. 7CUCh. 8.6 - Prob. 8CUCh. 8.6 - Prob. 9CUCh. 8.6 - Prob. 10CUCh. 8.6 - 11. An example of an external irreversibility...Ch. 8.6 - Prob. 12CUCh. 8.6 - Prob. 13CUCh. 8.6 - Prob. 14CUCh. 8.6 - 15. A direct-contact–type heat exchanger found in...Ch. 8.6 - 16. The component of a regenerative vapor power...Ch. 8.6 - Prob. 17CUCh. 8.6 - 18. A Rankine cycle that employs an organic...Ch. 8.6 - Prob. 19CUCh. 8.6 - Prob. 20CUCh. 8.6 - Prob. 21CUCh. 8.6 - Prob. 22CUCh. 8.6 - Prob. 23CUCh. 8.6 - 24. The purpose of deaeration is ______________.
Ch. 8.6 - Prob. 25CUCh. 8.6 - Prob. 26CUCh. 8.6 - Prob. 27CUCh. 8.6 - Prob. 28CUCh. 8.6 - 29. The total cost associated with a power plant...Ch. 8.6 - Prob. 30CUCh. 8.6 - Prob. 31CUCh. 8.6 - Prob. 32CUCh. 8.6 - Prob. 33CUCh. 8.6 - Prob. 34CUCh. 8.6 - Prob. 35CUCh. 8.6 - Prob. 36CUCh. 8.6 - Prob. 37CUCh. 8.6 - Prob. 38CUCh. 8.6 - Prob. 39CUCh. 8.6 - 40. For a vapor power cycle with and , the...Ch. 8.6 - Prob. 41CUCh. 8.6 - Prob. 42CUCh. 8.6 - Prob. 43CUCh. 8.6 - Prob. 44CUCh. 8.6 - Prob. 45CUCh. 8.6 - Prob. 46CUCh. 8.6 - Prob. 47CUCh. 8.6 - Prob. 48CUCh. 8.6 - Prob. 49CUCh. 8.6 - 50. In a binary cycle, energy discharged by heat...Ch. 8.6 - Prob. 1PCh. 8.6 - Prob. 2PCh. 8.6 - Prob. 3PCh. 8.6 - Prob. 6PCh. 8.6 - 8.7 Water is the working fluid in an ideal Rankine...Ch. 8.6 - Prob. 8PCh. 8.6 - 8.10 Water is the working fluid in an ideal...Ch. 8.6 - Prob. 12PCh. 8.6 - Prob. 13PCh. 8.6 - 8.14 On the south coast of the island of Hawaii,...Ch. 8.6 - Prob. 15PCh. 8.6 - 8.17. Water is the working fluid in a Rankine...Ch. 8.6 - 8.19 Water is the working fluid in a Rankine...Ch. 8.6 - Prob. 20PCh. 8.6 - Prob. 21PCh. 8.6 - 8.22 Superheated steam at 8 MPa and 480°C leaves...Ch. 8.6 - Prob. 23PCh. 8.6 - Prob. 25PCh. 8.6 - Prob. 26PCh. 8.6 - 8.27 Steam is the working fluid in the ideal...Ch. 8.6 - Prob. 28PCh. 8.6 - Prob. 29PCh. 8.6 - Prob. 30PCh. 8.6 - Prob. 31PCh. 8.6 - 8.32 An ideal Rankine cycle with reheat uses water...Ch. 8.6 - Prob. 33PCh. 8.6 - 8.34 Steam at 4800 lbf/in.2, 1000℉ enters the...Ch. 8.6 - Prob. 35PCh. 8.6 - Prob. 37PCh. 8.6 - 8.38 For the cycle of Problem 8.37, reconsider the...Ch. 8.6 - Prob. 39PCh. 8.6 - Prob. 40PCh. 8.6 - Prob. 41PCh. 8.6 - Prob. 42PCh. 8.6 - Prob. 43PCh. 8.6 - Prob. 44PCh. 8.6 - Prob. 45PCh. 8.6 - Prob. 46PCh. 8.6 - Prob. 47PCh. 8.6 - 8.48 For the cycle of Problem 8.47, investigate...Ch. 8.6 - Prob. 49PCh. 8.6 - Prob. 50PCh. 8.6 - Prob. 51PCh. 8.6 - 8.52 As indicated in Fig. P8.52, a power plant...Ch. 8.6 - Prob. 53PCh. 8.6 - Prob. 54PCh. 8.6 - Prob. 55PCh. 8.6 - Prob. 56PCh. 8.6 - Prob. 57PCh. 8.6 - Prob. 58PCh. 8.6 - Prob. 59PCh. 8.6 - Prob. 60PCh. 8.6 - Prob. 61PCh. 8.6 - Prob. 63PCh. 8.6 - Prob. 64PCh. 8.6 - Prob. 65PCh. 8.6 - Prob. 66PCh. 8.6 - 8.67 Water is the working fluid in a Rankine cycle...Ch. 8.6 - Prob. 68PCh. 8.6 - Prob. 69PCh. 8.6 - Prob. 70PCh. 8.6 - 8.72 Water is the working fluid in a...Ch. 8.6 - Prob. 73PCh. 8.6 - Prob. 74PCh. 8.6 - Prob. 75PCh. 8.6 - 8.76 A binary vapor power cycle consists of two...Ch. 8.6 - A binary vapor cycle consists of two Rankine...Ch. 8.6 - Prob. 78PCh. 8.6 - Prob. 79PCh. 8.6 - Prob. 80PCh. 8.6 - 8.81 Figure P8.81 shows a combined heat and power...Ch. 8.6 - 8.82 Figure P8.82 shows a cogeneration cycle that...Ch. 8.6 - Prob. 83PCh. 8.6 - 8.84 The steam generator of a vapor power plant...Ch. 8.6 - 8.85 Determine the exergy input, in kJ per kg of...Ch. 8.6 - 8.86 In the steam generator of the cycle of...Ch. 8.6 - Prob. 87PCh. 8.6 - 8.88 Determine the rate of exergy input, in Btu/h,...Ch. 8.6 - Prob. 89PCh. 8.6 - Prob. 90PCh. 8.6 - Prob. 91PCh. 8.6 - 8.92 Figure P8.92 provides steady-state operating...Ch. 8.6 - 8.93 Steam enters the turbine of a simple vapor...
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