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Development of the thermal performance model using temperature gradient analysis for optimized design of steam surface condenser

Title
Development of the thermal performance model using temperature gradient analysis for optimized design of steam surface condenser
Author
김성중
Keywords
Steam surface condenser; Performance model; Pressure transition temperature; Temperature gradient analysis; Design optimization
Issue Date
2020-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v. 163, article no. 120411
Abstract
This paper presents a new method of evaluating the thermal performance of a steam condenser based on the temperature gradient between steam and cooling water. With reference to the experimental re- sults, the pressure transition temperature (PTT), defined as the limiting cooling water temperature ini- tiating insufficient heat removal over the applied heat load, was identified. An analytical methodology was developed to estimate the PTT for given geometrical and thermal-hydraulic conditions of the con- denser system. The methodology was extended to a temperature gradient analysis (TGA) model for the performance evaluation of power plant-scale condensers by considering the effects of condensate inunda- tion, tube loading pattern, steam shear, and fouling resistance. The assessment results of the TGA model showed good agreement with existing numerical and lumped-volume models, as well as measurement data of existing power-plant condenser systems. Its simplicity and strong capability to elucidate most of the design variables of the condenser make the TGA model suitable for executing many iterative calcula- tions required when designing and optimizing the new condenser system.
URI
https://www.sciencedirect.com/science/article/pii/S0017931020333470?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/175067
ISSN
0017-9310 ; 1879-2189
DOI
10.1016/j.ijheatmasstransfer.2020.120411
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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