THERMAL SCIENCE
International Scientific Journal
A CFD INVESTIGATION AND HEAT TRANSFER AUGMENTATION OF DOUBLE PIPE HEAT EXCHANGER BY EMPLOYING HELICAL BAFFLES ON SHELL AND TUBE SIDE
ABSTRACT
The inclusion of baffles in a double pipe heat exchanger is becoming increasingly important as it improves the heat exchanger's performance. The CFD analysis is used in this paper to investigate the performance of double pipe heat exchangers with and without helical baffles on both shell tube sides. The 3-D CFD model was created in Solid Works, and the FloEFD software was used to analyze the conjugate heat transfer between the heat exchanger's tube and shell sides. Heat transfer characteristic like outlet temperature of shell and tube are investigated along with pressure drop on shell and tube side. Based on CFD results of double pipe heat exchanger with helical baffle on both shell side and tube side (Type 4) gives the better results than the other type of heat exchangers with an increased pressure drop than the others, results reveals that Type 4 outlet temperature of shell side is 8% higher and on tube side it is 5.5% higher, also pressure drop on shell side is 12% higher and on tube side it is 42% higher than the other types.
KEYWORDS
PAPER SUBMITTED: 2020-11-20
PAPER REVISED: 2021-09-12
PAPER ACCEPTED: 2021-09-20
PUBLISHED ONLINE: 2021-10-10
THERMAL SCIENCE YEAR
2022, VOLUME
26, ISSUE
Issue 2, PAGES [991 - 998]
- Zhang, Z., et al., Heat transfer enhancement in double-pipe heat exchanger by means of rotor-assembled strands, Chemical Engineering and Processing: Process Intensification, 60 (2012), pp. 26-33.
- Gorman, JM., et al., Thermal and fluid flow first principles numerical design of an enhanced double pipe heat exchanger, Applied Thermal Engineering, 107 (2016), pp. 194-206.
- Senthilkumar, G. M., et al., Generation and characterization of nanobubbles for heat transfer applications, Materials Today: Proceedings, 43 (2021), 6, pp. 3391-3393. doi.org/10.1016/j.matpr.2020.08.373.
- Chamoli Sunil., Thakur Narendra., Performance study of solar air heater duct having absorber Plate with V down perforated baffles. Songklanakarin Journal of Science Technology, 36 (2014), 2, pp. 201 -208.
- Hashemian, M., et al., A comprehensive numerical study on multi-criteria design analyses in a novel form (conical) of double pipe heat exchanger, Applied Thermal Engineering, 102 (2016), 1228-1237.
- Gobinath, S., Comparative study of room temperature control in buildings with and without the use of pcm in walls, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 40 (2018), 14, pp 1765-1771. doi:10.1080/15567036.2018.1486910
- Targui, N., Kahalerras, H., Analysis of a double pipe heat exchanger performance by use of porous baffles and pulsating flow, Energy Conversion and Management, 76 (2013), pp. 43-54.
- Vivekanandan, M., et al., Pressure Vessel Design using PV-ELITE Software with Manual Calculations and Validation by FEM, Journal of Engineeing Technology, 8 (2019),1, pp. 425-43
- Senthilkumar, G. M., et al., Performance of radiator by using SiO2 nanofluids, International Journal of Ambient Energy, 41 (2020), 9, pp 1038-1040. doi:10.1080/01430750.2018.1501746.
- Naphon, P., Heat transfer and pressure drop in the horizontal double pipes with and without twisted tape insert, International Communication Heat Mass Transfer, 33 (2006), pp. 166-175.
- Tang, X., et al., Experimental and numerical investigation of convective heat transfers and fluid flow in twisted spiral tube, International Journal of Heat Mass Transfer, 90 (2015), pp. 523-541.
- Venkatesh, R., Christraj, W., Performance Analysis of Solar Water Heater in Multipurpose Solar Heating System, Applied Mechanics and Materials, 592-594 (2014), pp.1706-1713.
- Naphon, P., et al., Tube side heat transfer coefficient and friction factor characteristics of horizontal tubes with helical rib, Energy Conversion and Management, 47 (2006) pp. 3031-3044.
- Yadav, A.S., Effect of half-length twisted-tape turbulators on heat transfer and pressure drop characteristics inside a double pipe u-bend heat exchanger, Jordan Journal of Mechanical and Industrial Engineering, 3 (2009), 1, pp. 17-22.
- Venkatesh, R., Vijayan, V., Performance Evaluation of Multipurpose Solar Heating System, Mechanics and Mechanical Engineering, 20 (2016), pp. 359-370.
