Volume 2 Issue 1

Fuzzy Logic Modeling of Heat Transfer in a double Pipe Heat Exchanger with Wavy (Corrugated) Twisted Tape Inserts (140070)

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Abstract : Fuzzy logic is a method which can be used to model the experiments,and it has been introduced for the first time in 1965 by Zadeh . T he present work represents the use of fuzzy logic to model and predict the experimental results of heat transfer in a double Pipe Heat Exchanger with Wavy (Corrugated) Twiste d Tape Inserts . The tape consists of the corrugations and the twisting with various twist ratios (TR=10.7,8.5,7.1) . The length,width and thickness of twisted tape were 1 m,14 mm and 2 mm respectively. The Reynolds number is varied from 5000 to 17 000. T he friction factor is varied from .0384 to .07241 . The Nusselt number is varied from 69.13 to 266.18. Here the results with various twist ratios tapes were compared with results with plain tube. The experimental results showed that the maximum heat tran sfer was obtained with twisted tape with TR 7.1 . The Nusselt number increased by 172 % and friction factor value increased by 32.11% as compared to the smooth tube values. For Fuzzy Logic system the twist ratio,temperature and Reynolds Numbers were used as input functions and friction factor and Nusselt number were used as output functions. It is found that a fuzzy inference system named Mamdani is a powerful instrument for predicting the experiments due to its low error.

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Downloads : 1685

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Modified Date : 2015-01-20

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Mr. A. S .Kurhade , Prof. M. M. Dange , Prof. D. B. Nalawade , "Fuzzy Logic Modeling of Heat Transfer in a double Pipe Heat Exchanger with Wavy (Corrugated) Twisted Tape Inserts", IJIERT - International Journal of Innovations in Engineering Research and Technology, Volume 2 Issue 1, ISSN : 2394-3696, Page No.