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Performance Evaluation of Condensers used in Thermal Plants- A Comparative Study of Condensers Having Various Types of Baffles

Author(s):

B.Jithender , VAAGDEVI COLLEGE OF ENGINEERING; Ch. Sathaiah, VAAGDEVI COLLEGE OF ENGINEERING; P. Raju, VAAGDEVI COLLEGE OF ENGINEERING

Keywords:

Condenser, Shell-and-Tube Heat Exchanger, Heat Transfer Performance Thermal Power Plant

Abstract

The Surface Condenser used in a thermal power plant is modeled and numerically analyzed in ANSYS FLUENT Flow Simulation. The temperatures obtained from the numerical analysis of the modeled condenser closely match with those of the working temperatures in the thermal power plant, which validates the model. Flower baffles are installed in the design of the shell-and-tube heat exchanger in order to improve the heat transfer performance. Three Sector angles 750, 900 and 1150 are considered for the analysis. The temperature distribution of the steam on the shell side is represented in the form of flow trajectories. The correlation of the overall heat transfer coefficient with varying angle is identified and is found that with increasing sector angle of flower baffles, the overall heat transfer coefficient increases. A comparative study of the condenser integrated with flower baffles to that of the condenser with segmental baffles is done. The effectiveness of the condenser is found to have increased with increasing baffle angles due to the induced turbulence. The heat transfer performance of the condenser with segmental baffles is higher than that of the condenser with flower baffles, but segmental baffles cause large pressure drop. The heat transfer coefficient on the shell side is calculated analytically and compared graphically.

Other Details

Paper ID: IJSRDV4I60405
Published in: Volume : 4, Issue : 6
Publication Date: 01/09/2016
Page(s): 1075-1078

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