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Numerical modelling of effect of baffle orientation offset on shell-and-tube heat exchanger performance
The performance of a shell-and-tube heat exchanger (STHE) is largely dependent on the type, orientation and offset arrangement of the baffles employed. In this paper, the thermal-hydraulic characteristics of STHEs with 90°, 120° and 180° offset arrangements of baffles were studied numerically. The s...
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2018-02
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| LEADER | 00000njm a2000000a 4500 | ||
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| 001 | oai:repository.ui.edu.ng:123456789/9577 | ||
| 042 | |a dc | ||
| 720 | |a Petinrin, M. O. |e author | ||
| 720 | |a Dare, A. A. |e author | ||
| 260 | |c 2018-02 | ||
| 520 | |a The performance of a shell-and-tube heat exchanger (STHE) is largely dependent on the type, orientation and offset arrangement of the baffles employed. In this paper, the thermal-hydraulic characteristics of STHEs with 90°, 120° and 180° offset arrangements of baffles were studied numerically. The study was performed on 19-tube and 31-tube heat exchangers, and also for three shell-side working fluids: air, water and engine oil. The numerical analyses were carried out using the k-ε model with imposed realizability constraint, and were solved with COMSOL Multiphysics. The STHE with 180° had higher pressure drop than other STHEs for all the ranges of mass flow rate. STHE with 120° showed better performance for shell-side heat transfer coefficient at the same pressure drop while STHE with 90° had much higher performance factor at the same mass flow rate. It is concluded that baffle offset arrangements significantly affected the shell and tube heat exchanger performance. | ||
| 024 | 8 | |a 2229-5518 | |
| 024 | 8 | |a ui_art_petinrin_numerical_2018 | |
| 024 | 8 | |a International Journal of Scientific & Engineering Research 9(2), pp. 2096-2108 | |
| 024 | 8 | |a http://ir.library.ui.edu.ng/handle/123456789/9577 | |
| 653 | |a Shell-and-tube heat exchangers | ||
| 653 | |a Heat transfer coefficient | ||
| 653 | |a Pressure drop | ||
| 653 | |a Baffle offset | ||
| 245 | 0 | 0 | |a Numerical modelling of effect of baffle orientation offset on shell-and-tube heat exchanger performance |