An Approximate Relation for Describing the Performance of a Condenser in Off-design Conditions

Rafał Laskowski , Adam Smyk , Artur Rusowicz

Abstract

Operating parameters of a condenser have significant effect on the performance of a power generation unit. Heat transfer effectiveness is used to assess the steam condenser performance. Heat transfer effectiveness of a steam condenser is a function of an overall heat transfer coefficient, heat transfer surface area, and the cooling water mass flow rate. In this paper, an attempt was made to produce a simpler relation for heat transfer effectiveness of a steam condenser under off-design conditions as a function of inlet water temperature, the cooling water mass flow rate and steam temperature. A simulator of a condenser in a 200-MW power generation unit was used to investigate how inlet cooling water temperature, the cooling water mass flow rate, and the steam temperature affect the outlet cooling water temperature. Based on simulator data, a new approximate relation for heat transfer effectiveness of the condenser (outlet cooling water temperature) in off-design conditions with four constant coefficients was given. A simplified form of the proposed relation can be given with three constant coefficients. A good agreement was achieved between the heat transfer effectiveness obtained from the definition and from the proposed relation. The relation can be used to determine the condenser performance in off-design conditions in a simple way, or to determine a reference performance of a new or overhauled condenser.
Author Rafał Laskowski ITC
Rafał Laskowski,,
- The Institute of Heat Engineering
, Adam Smyk ITC
Adam Smyk,,
- The Institute of Heat Engineering
, Artur Rusowicz ITC
Artur Rusowicz,,
- The Institute of Heat Engineering
Journal seriesBritish Journal of Applied Science & Technology, ISSN 2231-0843
Issue year2016
Vol12
No6
Pages1-11
Publication size in sheets0.5
Keywords in Polishenergia, elektrownia, kondensator, osiągi kondensatora, zmienne warunki pracy
Keywords in Englishenergy, power plant, steam condenser, condenser performance, off-design conditions
DOIDOI:10.9734/BJAST/2016/20025
Languageen angielski
Score (nominal)5
ScoreMinisterial score = 0.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 5.0, 28-11-2017, ArticleFromJournal
Citation count*1 (2018-06-17)
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