A Case Study about Profit Maximization 10 MWe Combined Cycle Gas Turbine Cogen Plant
DOI:
https://doi.org/10.13052/dgaej2156-3306.1535Abstract
Clear and present market signals increase economic efficiency and
bring environmental and social benefits. Market signals that lack these
qualities will be poorly understood and infrequently applied. One year
of operation of a combined cycle gas turbine cogeneration plant in the
10 Megawatt electric (MWe) class serves as a case study. The author ap-
plies a new index of economic efficiency called the “profit maximization
factor” in order to quantify plant performance. Recommendations are
made to benefit cogeneration plant manufacturers, owners, operators,
regulators, utilities, and environmentalists.
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In design documents the plant heat balance and guaranteed heat rate
are given in lower heating value (LHV). Most of these have been
converted to higher heating value (HRV) for clarity in Table 1.
This increase from 83 to 100 percent corresponds to 17 parts in 83, thus
something more than the nominal 17 percent improvement.
There would be six cells in each array if the winter peak rate were unique, but it is identical to winter part-peak rate. One cell per ar-
ray is shaded as a reminder.
For utilities there are only two annual seasons in gas and electric rates,
each six months long.
Dietrick David, et al., “Case Studies of Small Cogeneration” originally
appeared as a paper published in the “Proceedings” of the 22nd
AEE World Energy Engineering Conference, Atlanta, Georgia, Oc-
tober 22, 1999, pp. 323-327.
Energy User News, 24, 8, August 1999, p. 36.
Manuscript dated March 31, 2000, presented at the West Coast Energy
Management Congress, San Jose, California, June 22, 2000.
