Performance Enhancement of Shell and Tube Heat Exchanger on Parallel Flow with Single Segmental Baffle

Avita Ayu Permanasari, Poppy Puspitasari, Sukarni Sukarni, Retno Wulandari

Abstract


The shell and tube heat exchanger was a tool to exchange the heat energy between fluids with different temperatures that occurred through direct or indirect contact. The energy exchange in fluids could be occurred with the same phase (liquid to liquid or gas to gas) or two fluids with different phase. To date, the process of heat transfer in the industrial field was crucial in machine work. Therefore, there were studies directed to optimize and develop the function and thermal performance of a heat exchanger by adding Baffles to the side of the shell. Vortex flow that occurs with the addition of baffles will make the area of fluid contact in the shell with the tube wall larger, so the heat transfer between the two fluids will increase. This study aimed to obtain the efficiency of the heat exchanger and its effectiveness when put on parallel flow. The heat exchanger had the dimensions of 54.6 x 10-3 m in outer diameter and 22.4 x 10-3 m in inner diameter with a tube thickness of 3 mm. The variations on water flow from both fluids were 0.5, 1, 1.5, 2 l/min for hot water and 1, 2, 3, 4 l/min for cold water to obtain the effectiveness of heat exchanger on parallel flow. This research heated the hot fluid in electric heating and used water as the cold fluid. The results showed that heat exchanger with single segmental baffle was more efficient in reducing heat in hot water than heat exchanger without bafe. The flow of fluid affected the average temperature difference; the higher the flow of fluid created a more significant temperature difference. The use of single segmental baffle affected the average temperature difference that was higher than without the baffle. The use of single segmental baffle also influenced the heat transfer greater than without baffle because of the longer distance travelled by the fluid on single segmental baffle with the same flow. Thus, the heat transfer process that occurred was more significant by using a single segmental baffle.


Keywords


Baffle, heat exchanger, parallel flow, shell and tube

Full Text:

PDF

References


F. N. Taher, S. Z. Movassag, K. Razmi, and R. T. Azar, “Baffle space impact on the performance of helical baffle shell and tube heat exchangers”, Applied Thermal Engineering, vol. 44, pp. 143–149, 2012.

Y. Qiu, M. Li, W. Wang, B. Du, and K. Wang, “An experimental study on the heat transfer performance of a prototype molten-salt rod baffle heat exchanger for concentrated solar power”, Energy, 2018.

B. Sciences and T. Nadu, “Shell Side Numerical Analysis Of A Shell And Tube Heat Exchanger Considering The Effects Of Baffle Inclination Angle On Fluid Flow”, Thermal Science, vol. 16, no. 4, pp. 1165–1174, 2012.

J. Wen, H. Yang, S. Wang, Y. Xue, and X. Tong, “International Journal of Heat and Mass Transfer Experimental investigation on performance comparison for shell-and-tube heat exchangers with different baffles”, Heat Mass Transf., vol. 84, pp. 990–997, 2015.

H. Li and V. Kottke, “Effect of baffle spacing on pressure drop and local heat transfer in shell-and-tube heat exchangers for staggered tube arrangement”, Int. J. Heat Mass Transf, vol. 41, no. 10, pp. 1303-1311, 1998.

Y. Lei, Y. Li, S. Jing, C. Song, and Y. Lyu, “Design and performance analysis of the novel shell-and-tube heat”, Appl. Therm. Eng., 2017.

B. Gao, Q. Bi, Z. Nie, and J. Wu, “Experimental study of effects of baffle helix angle on shell-side performance of shell-and-tube heat exchangers with discontinuous helical baffles”, Exp. Therm. Fluid Sci., vol. 68, pp. 48–57, 2015.

T. V. S. Siva and P. Sai Chaitanya, “Optimization Of Shell And Tube Heat Exchanger Used In A Rankine Cycle Of Exhaust Gas Waste Heat Recovery System Using CFD”, Int. J. Chem. Sci., vol. 14, no. 4, pp. 2247–2258, 2016.

M. Bahiraei, M. Hangi, and M. Saeedan, “A novel application for energy efficiency improvement using nano fluid in shell and tube heat exchanger equipped with helical baffles”, Energy, vol. 93, pp. 2229-2240, 2015.

A. A. Shrikant, R. Sivakumar, N. Anantharaman, and M. Vivekenandan, “CFD simulation study of shell and tube heat exchangers with different baffle segment configurations”, Appl. Therm. Eng., 2016.

A. Akbar, A. Arani, and R. Moradi, “Shell and tube heat exchanger optimization using new baffle and tube configuration”, Appl. Therm. Eng., vol. 157, 2019.

G. Kumaresan, R. Santosh, and P. Duraisamy, "Numerical Analysis of Baffle Cut on Shell Side Heat Exchanger Performance with Inclined Baffles", Heat Transfer Engineering, vol. 7632, 2017.

S. Eiamsa-ard, K. Ruengpayungsak, C. Thianpong, M. Pimsarn, and V. Chuwattanakul, “International Journal of Thermal Sciences Parametric study on thermal enhancement and flow characteristics in a heat exchanger tube installed with protruded baffle bundles”, Int. J. Therm. Sci., vol. 145, 2019.

B. Du, Y. He, K. Wang, and H. Zhu, “Convective heat transfer of molten salt in the shell-and-tube heat exchanger with segmental baffles”, Int. J. Heat Mass Transf., vol. 113, pp. 456–465, 2017.

D. A. Firlianda, A. A. Permanasari, and P. Puspitasari, “Heat transfer enhancement using nanofluids ( MnFe2O4-ethylene glycol ) in mini heat exchanger shell and tube Heat Transfer Enhancement using Nanofluids ( MnFe 2 O 4 - Ethylene Glycol ) in Mini Heat Exchanger Shell and Tube”, AIP Conf. Proc., vol. 2120, 2019.

A. A. Permanasari, B. S. Kuncara, and P. Puspitasari, “Convective heat transfer characteristics of TiO2-EG nanofluid as coolant fluid in heat exchanger Convective Heat Transfer Characteristics of TiO 2 -EG Nanofluid as Coolant Fluid in Heat Exchanger,” AIP Conf. Proc., vol. 2120, 2019.




DOI: http://dx.doi.org/10.17977/um016v4i12020p043

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Journal of Mechanical Engineering Science and Technology (JMEST)

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

View My Stats