A coal-fired combined cycle power plant serves a small city and has a load cycle shown below (Weekdays: Mon-Sat). The power plant has the following generating units: 100 MW gas turbine, 2 X 40 MW steam turbines, and 2 X 10 MW Diesel generators. Time (hrs) 0 - 4 4 - 10 10 - 12 12 - 17 17-19 19 - 20 20-24 Load Weekdays (MW) Sundays 60 90 105 95 110 185 60 60 80 100 120 140 130 60 a. Draw the daily load curves for the weekdays and Sundays. b. Draw the load duration curves for weekdays and Sundays. c. Compute how much units is generated per week.

Power System Analysis and Design (MindTap Course List)
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Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
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Chapter2: Fundamentals
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Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...
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A coal-fired combined cycle power plant serves a small city and has a load cycle shown below
(Weekdays: Mon-Sat).
The power plant has the following generating units: 100 MW gas turbine, 2 X 40 MW steam turbines,
and 2 X 10 MW Diesel generators.
Time (hrs)
0 - 4
4 - 10
10 – 12
12 - 17
17-19
19 - 20
20-24
Load Weekdays
(MW) Sundays
60
90
105
95
110
185
60
60
80
100
120
140
130
60
a. Draw the daily load curves for the weekdays and Sundays.
b. Draw the load duration curves for weekdays and Sundays.
c. Compute how much units is generated per week.
d. Compute the average load during i) weekdays, ii) Sundays.
e. Compute the load factor for each load cycle.
f. Create an operation schedule for the weekdays and Sundays. Explain your operation
schedule.
g. Compute the fuel requirements for coal (in tons) during the weekend, if coal has a calorific
value of 31 MJ/kg. The average plant heat rate is 12,000 Btu/kWh.
Transcribed Image Text:A coal-fired combined cycle power plant serves a small city and has a load cycle shown below (Weekdays: Mon-Sat). The power plant has the following generating units: 100 MW gas turbine, 2 X 40 MW steam turbines, and 2 X 10 MW Diesel generators. Time (hrs) 0 - 4 4 - 10 10 – 12 12 - 17 17-19 19 - 20 20-24 Load Weekdays (MW) Sundays 60 90 105 95 110 185 60 60 80 100 120 140 130 60 a. Draw the daily load curves for the weekdays and Sundays. b. Draw the load duration curves for weekdays and Sundays. c. Compute how much units is generated per week. d. Compute the average load during i) weekdays, ii) Sundays. e. Compute the load factor for each load cycle. f. Create an operation schedule for the weekdays and Sundays. Explain your operation schedule. g. Compute the fuel requirements for coal (in tons) during the weekend, if coal has a calorific value of 31 MJ/kg. The average plant heat rate is 12,000 Btu/kWh.
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