Dynamic model of saturator based on a global heat and mass transfer coefficient

Saturator is one of the core components of humid air turbine (HAT) and is the main feature of HAT making it different from other gas turbine cycles. Due to the lack of sufficient experience in commercial plant operation, HAT cycle has a great demand for modeling and simulation of the system and its...

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Bibliographic Details
Published in:Journal of Central South University 2018-05, Vol.25 (5), p.1173-1181
Main Authors: Huang, Di, Zhou, Deng-ji, Zhang, Hui-sheng, Su, Ming, Weng, Shi-lie
Format: Article
Language:English
Subjects:
Coefficients
Computer simulation
Cooling towers
Design optimization
Dynamic models
Engineering
Gas turbine engines
Heat
Humid air turbines
Mass transfer
Metallic Materials
Systems design
Temperature distribution
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Summary:Saturator is one of the core components of humid air turbine (HAT) and is the main feature of HAT making it different from other gas turbine cycles. Due to the lack of sufficient experience in commercial plant operation, HAT cycle has a great demand for modeling and simulation of the system and its components, especially the saturator, to provide reference for system design and optimization. The conventional saturator models are usually based on the theory of heat and mass transfer, which need two accurate coefficients to ensure convincing results. This work proposes a global heat and mass transfer coefficient based on cooling tower technology to model the saturator in small-scale HAT cycle. Compared with the experimental data, the simulation results show that the proposed model well predicts the dynamic humidity and temperature distribution characteristics of saturator at low air pressure and temperature.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-018-3816-6