1) The incremental fuel costs, in dollars per mega watt hour for two units in a plant are given by : = 0,009 P₂ +6 dF P = 0,007 P₁ + 7 and df₂ dP₂ During 24 hour period the load on each unit varies between loo Mw and 500 MW, Whereas the plant output varies from 200 MW to 700 MW. a) At what power level should unit 2 begin to take on all the additional load for the most economic operation of the plant? b) What is the power output of the plant at this point? Neglect Josses. Select one: O a: 222, 22 MW O b: 122, 22 MW OC: 122, 22 MW b: 122, 22 Kw b: 222, 22 MW b: 222, 22 kW b; 122, 22M W
1) The incremental fuel costs, in dollars per mega watt hour for two units in a plant are given by : = 0,009 P₂ +6 dF P = 0,007 P₁ + 7 and df₂ dP₂ During 24 hour period the load on each unit varies between loo Mw and 500 MW, Whereas the plant output varies from 200 MW to 700 MW. a) At what power level should unit 2 begin to take on all the additional load for the most economic operation of the plant? b) What is the power output of the plant at this point? Neglect Josses. Select one: O a: 222, 22 MW O b: 122, 22 MW OC: 122, 22 MW b: 122, 22 Kw b: 222, 22 MW b: 222, 22 kW b; 122, 22M W
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:1) The incremental fuel costs, in dollars per mega watt hour
for two units in a plant are given by :
dF
dpi
= 0,007 P₁ + 7
and df₂
dP₂
= 0,009²₂ +6
24 hour period the load
each unit varies between
During
loo Mw and 500 MW, Whereas the plant output varies from
200 MW to 700 MW.
a) At what power level should unit 2 begin to take on all
the additional load for the most economic operation of the
plant?
Select one:
O a: 222, 22 MW
O b: 122, 22 MW
OC: 122, 22 MW
Od. 222, 22 MW
b) What is the power output of the plant at this point ?
Neglect losses.
b: 122, 22 Kw
b: 222, 22 MW
b: 222, 22
b: 122, 22M W
on
KW
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