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Design and analysis of double pipe heat exchanger with new arrangements of corrugated tubes using honeycomb arrangements

ABSTRACT
Double pipe heat exchangers are utilized as a part of mechanical procedure to recuperate heat between two process liquids. The main objective of this project to augment the heat transfer in a counter flow double pipe heat exchanger filled with inner tube of honeycomb arrangements. To increase the efficiency of double pipe heat exchanger is made up of concave and convex corrugated type of outer and inner tubes. Hot water (inner tube) and cold water (outer tube) inlet temperatures were maintained at 40°C and 8°C respectively. Investigation were performed for inward tube (high temp water) and external tube (cool water) volume flow rate was kept at 15L/min and 20L/min. Different parameters such as overall heat transfer coefficient, Nusselt number, pressure drop, Friction factor, convective heat transfer coefficient and effectiveness were obtained and compared for new arrangements of corrugated tubes filled with and without honeycomb arrangements. The analysis was carried out for porosity range is 0.8 and pore density (greater than 9PPl) to ensure high effectiveness. Maximum effectiveness was obtained for heat exchanger made of concave corrugated outer tube and convex corrugated inner tube with honeycomb structure.
KEYWORDS
PAPER SUBMITTED: 2019-08-01
PAPER REVISED: 2019-09-09
PAPER ACCEPTED: 2019-11-14
PUBLISHED ONLINE: 2019-12-22
DOI REFERENCE: https://doi.org/10.2298/TSCI190602458H
REFERENCES
  1. Hamed Sadighi Dizaji., et al., Experimental studies on heat transfer and pressure drop characteristics for new arrangements of corrugated tubes in a double pipe heat exchanger, Int. J. of thermal sciences, 96 (2015), 2, pp.211-220.
  2. Vicente, P.G., et al., Mixed convection heat transfer and isothermal pressure drop in corrugated tubes for laminar and transition flow, Int. Commun. Heat Mass Transfer 31 (2004), 1, pp. 651-662.
  3. Pradeep Mohan Kumar, K., et al., Computational Analysis and Optimization of Spiral Plate Heat Exchanger, J. of Applied Fluid Mechanics, Volume 11 (2018), Special Issue, pp.no, 121-128.
  4. Avudaiappan, T., et al., Potential Flow Simulation through Lagrangian Interpolation Meshless Method Coding, J. of Applied Fluid Mechanics, 11 (2018), Special Issue, pp. 129 -134.
  5. Huai-Zhi Han., et al., Multi objective shape optimization of double pipe heatexchanger with inner corrugated tube using RSM method, Int.journal of thermal sciences 90 (2015), 2, pp.173-186.
  6. Xu, H.J., et al., Numerical investigation on self coupling heat transfer in a counter flow double pipe heat exchanger filled with metallic foams, Applied thermal engg 66 (2014), 2, pp.43-54.
  7. Sivaprakash, M., et.al, Support vector machine for modelling and simulation of heat exchangers, Thermal Sciences An Int. J. (2020), doi.org/10.2298/TSCI190419398M.
  8. Sathivel, P, et al., Mathematical model of fluid flow and heat exchanger, Thermal Sciences An Int. J. (2020) , doi.org/10.2298/TSCI190412429P.
  9. Aroonrat, K., et al., Experimental study on evaporative heat transfer and pressure drop of R-134a flowing downward through vertical corrugated tubes with different corrugation pitches, Exp. Heat Transfer 26 (2013), 1, pp.41-63.
  10. Darzi, A.R., et al., Experimental investigation of convective heat transfer and friction factor of Al2O3/water nanofluid in helically corrugated tube, Exp. Therm. Fluid Sci. 57 (2014), 2, pp. 188- 199.
  11. Sathish, T, et.al., Tlonn for the effective prediction of heat transfer rates in tube heat exchangers, Thermal Sciences An Int. J. (2020), doi.org/10.2298/TSCI190714438T.
  12. Holman, G.P., Heat transfer, sixth edition, McGraw-Hill, 1986.