Development of a method to evaluate the design performance of a feedwater heater with a short drain cooler
- Commonwealth Edison Co., Chicago, IL (United States)
- Univ. of Illinois, Chicago, IL (United States). Dept. of Mechanical Engineering
Since feedwater heaters are so important to unit performance, utilities need a method to evaluate the heater manufacturer performance specifications and understand the theory behind a heater's design. This paper uses the Delaware Method for Shell-Side Heat Exchanger Design and modifies the method for feedwater heaters currently in use. The Delaware Method, which was designed in 1960, is an excellent heat exchanger design tool. However, modern feedwater heaters have baffle designs that the method cannot accurately model. Therefore, the Delaware method needs to be modified to predict heat transfer coefficients and pressure drops in modern feedwater heaters accurately. This paper employs the same concepts as the Delaware Method in calculating an ideal heat transfer coefficient and extends them to be valid for higher Reynolds number flows. The heat transfer coefficient and pressure drop correction factor curves were calibrated using six actual feedwater heater designs.
- OSTI ID:
- 7304716
- Journal Information:
- Journal of Engineering for Gas Turbines and Power; (United States), Journal Name: Journal of Engineering for Gas Turbines and Power; (United States) Vol. 116:2; ISSN JETPEZ; ISSN 0742-4795
- Country of Publication:
- United States
- Language:
- English
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