Title
Unveiling the mystery of combined heat & power (cogeneration)
Author
Faculty/Department
Faculty of Applied Economics
Publication type
article
Publication
Oxford ,
Subject
Economics
Physics
Engineering sciences. Technology
Source (journal)
Energy: the international journal. - Oxford
Volume/pages
61(2013) , p. 575-582
ISSN
0360-5442
ISI
000327685000055
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The article unveils the mystery of cogeneration. Cogeneration is an add-on or embedded activity in thermal power plants, with as merit the use of part or whole of their point source heat exhausts. EUs talk of high-efficiency cogeneration is an unfounded transfer of responsibility from the hosting thermal power generation plant onto CHP (Combined Heat & Power) activity. The quality of a CHP activity is univocally defined by its design power-to-heat ratio s, a tombstone parameter derived from the design characteristics of the power plant. A thermal power plant may house more than one cogeneration activity. Identifying s requires positioning the bliss point in the electricityeheat production possibility set of the cogeneration activity. The bliss point is where after electric output is maximized, the sum of that output and the maximum recoverable quantity of heat occurs. Once CHPs mystery of virtual bliss points is unveiled, the proper s are found. With known s by CHP activity, the quantity of cogenerated electricity is reliably assessed as best indicator of cogeneration performance. Our analysis is applicable on all relevant thermal power cycles that host CHP activities, and illustrated with a numerical example. Our lean method is necessary and sufficient for proper CHP regulation.
E-info
https://repository.uantwerpen.be/docman/iruaauth/ce37e5/dd352057b1f.pdf
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