THERMAL SCIENCE

International Scientific Journal

Ravi Datt

,

Mangal Singh Bhist

,

Alok Darshan Kothiyal

,

Rajesh Maithani

,

Anil Kumar

FLUID FLOW AND HEAT TRANSFER ENHANCEMENT IN WINGS WITH COMBINED SOLID RING TWISTED TAPE INSERTS CIRCULAR HEAT EXCHANGER TUBE

ABSTRACT
Experimental examination is carried out to study the turbulent heat transfer and fluid flow characteristics in circular heat exchanger tube using combined wing with solid ring twisted tape inserts. A series of experiments has been performed with the range of Reynolds number (Re) varied from 3000 to 21000, number of twisted taped inserts, NTT varied from 1.0 to 4.0 with constant value of other twisted tape parameters such as rings pitch ratio, dR/DT=1.0, wing pitch ratio, PW/WT=3.0 and wing depth ratio Wd/WT=1.67. Based on the examined, turbulent heat transfer and fluid flow in wing with combined solid ring twisted tape inserts results are compared with plain circular tube under same operating conditions. The experimental results show that the heat transfer is increased around 5.66 times than plane circular heat exchanger tube. The thermal and hydrodynamic performance parameter based on equal pumping power, ηρ was found to be highest for NTT=3.0. The optimum value of thermal and hydrodynamic performance has been found to be 2.74 for Re of 3,000 within the range of the parameters investigated. Multiple wings with solid rings twisted tape inserts have been also shown to be thermally as well as hydraulically better in comparison to other similar twisted tape insert geometries.
KEYWORDS
Heat Transfer Enhancement, multiple twisted tapes, twists ratio, wing pitch ratio, wing depth ratio and solid rings
PAPER SUBMITTED: 2017-04-07
PAPER REVISED: 2018-04-07
PAPER ACCEPTED: 2018-04-07
PUBLISHED ONLINE: 2019-04-07
DOI REFERENCE: https://doi.org/10.2298/TSCI170613095D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 6, PAGES [3893 - 3903]
REFERENCES
  1. M Arulprakasajothi, K Elangovan, U Chandrasekhar, S Suresh, Performance study of conical strip inserts in tube heat exchanger using water-based titanium oxide nanofluid, Thermal Science thermalscience.vinca.rs/pdfs/papers-2016/TSCI151024250A.pdf (Online first).
  2. ARS Suri, A Kumar, R Maithani, Experimental investigation of heat transfer and fluid flow behaviour in multiple square perforated twisted tape with square wing inserts heat exchanger tube, Heat and Mass Transfer, 2018, DOI: 10.1007/s00231-018-2290-x.
  3. MH Fard, MR Talaie, and S Nasr, Numerical and experimental investigation of heat transfer of zno/water nanofluid in the concentric tube and plate heat exchangers, Thermal Science 15 (2011) 183-194.
  4. AK Bhardwaj, A Kumar, R Maithani, R Kumar, S Kumar, R Chauhan, Experimental study on heat transfer and fluid flow enhancement of a spherical shape obstacle solar air passage, Thermal Science, thermalscience.vinca.rs/pdfs/papers-2017/TSCI170623220S.pdf (Online first).
  5. AM Hussein, RA Bakar, K Kadirgama, and KV Sharma, heat transfer enhancement with elliptical tube under turbulent flow TiO2-water nanofluid, Thermal Science, 20(2016), 89-97.
  6. R Kumar, R Chauhan, M Sethi, A Kumar, Experimental investigation on overall thermal performance of fluid flow in a rectangular channel with discrete v-pattern baffle, Thermal Science, doi.org/10.2298/TSCI151206125K (Online first).
  7. ML Djordjević, VP. Stefanović, and M V. Mančić, Pressure drop and stability of flow in archimedean spiral tube with transverse corrugations, Thermal Science, 20 (2016) 579-591.
  8. PS Purandare, MM Lele, and RK Gupta, Experimental investigation on heat transfer and pressure drop of conical coil heat exchanger, Thermal Science, 20(2016) 2087-2099.
  9. A Kumar, R. Maithani, ARS Suri, Numerical and experimental investigation of enhancement of heat transfer in dimpled rib heat exchanger tube, Heat and Mass Transfer, 15 June (2017), pp.1-16.
  10. ARS Suri, A. Kumar, R. Maithani, Effect of square wings in multiple square perforated twisted tapes on fluid flow and heat transfer of heat exchanger tube, Case Studies in Thermal Engineering, 10 (2017)28-43.
  11. A Kumar, RP Saini, JS Saini, Effect of roughness width ratio in discrete multi v-shaped rib roughness on thermo-hydraulic performance of solar air heater, Heat and Mass Transfer 51 (2015) 209-220.
  12. A Kumar, MH Kim, Heat transfer and fluid flow characteristics in air duct with various v-pattern rib roughness's on the heated plate: A comparative study, Energy 103 (2016)75-85.
  13. A Kumar, RP Saini, JS Saini, Numerical optimization of thermal performance of a solar air channel having discrete multi v-rib roughness on absorber plate, Heat Transfer Research 47 (2016) 449-469.
  14. MA Akhavan-Behabadi, R Kumar, MR Salimpour, R Azimi. Pressure drop and heat transfer augmentation due to coiled wire inserts during laminar flow of oil inside a horizontal tube. International Journal of Thermal Sciences 2010; 49: 373-9.
  15. J Meng, X Liang, Z Li. Field synergy optimization and enhanced heat transfer by multi-longitudinal vortexes flow in tube. International Journal of Heat and Mass Transfer 48 (2005) 3331-3337.
  16. Gawandare AV, Dange MM, Nalawade DB. Heat transfer enhancement with different square jagged twisted tapes. Int J Eng Res App 4 (2014) 619-624.
  17. Al-Fahed S,Chamra LM, ChakrounW. Pressure drop and heat transfer comparison for both micro fin tube and twisted tape inserts in laminar flow. Exp Therm Fluid Sci 18(1999) 323-33.
  18. ARS Suri, A. Kumar, R. Maithani, Convective heat transfer enhancement techniques of heat exchanger tubes: A review, Int. J. of Ambient Energy, 2017 (In Press) DOI: 10.1080/01430750.2017.1324816.
  19. Kongkaitpaiboon V, Nanan K, Eiamsa-ard S. Experimental investigation of heat transfer and turbulent flow friction in a tube fitted with perforated conical-rings. International Communications in Heat and Mass Transfer 37 (2010) 560-567.
  20. Promvonge P. Thermal augmentation in circular tube with twisted tape and wire coil turbulators. Energy Conversion and Management 49(2008) 2949-2955.
  21. Zhang Xiaoyu, Liu Zhinchun, Liu Wei. Numerical studies on heat transfer and friction factor characteristics of a tube fitted with helical screw tape without core rod inserts. Int J Heat and Mass Transf 60 (2013) 490-498.
  22. Shabanian SR, Rahimi M, Shahhosseini M, Alsairafi AA. CFD and experimental studies on heat transfer enhancement in an air cooler equipped with different tube inserts. Int Commun Heat Mass Transf 2011; 38:383-90.
  23. Krishna SR, Pathipaka G, Sivashanmugam P. Studies on heat transfer augmentation in a circular tube fitted with straight half twist left-right inserts in laminar flow. Journal of Environmental Research and Development 3 (2008; 3: 437-41.
  24. Eiamsa-ard S,Thianpong C, Promvonge P. Experimental investigation of heat transfer and flow friction in a circular tube fitted with regularly spaced twisted tape elements. Int Commun Heat Mass Transf 33 (2006) 1225-1233.
  25. Jaisankar S, Radhakrishnan TK, Sheeba KN. Experimental studies on heat transfer and friction factor characteristics of thermo sypon solar water heater system fitted with spacer at the trailing edge of twisted tapes. Appl Therm Eng 29(2009) 1224-1231.
  26. Jaisankar S, Radhakrishnan TK, Sheeba KN. Experimental studies on heat transfer and thermal performance characteristics of thermosyphon solar water heating system with helical and left-right twisted tapes. Energy Converse Manag. 52 (2011) 2048-2055.
  27. Eiamsa-ard Smith, Promvonge Pongjet. Influence of double-sided delta-wing tape insert with alternate-axes on flow and heat transfer characteristics in a heat exchanger tube. Chin J Chem. Eng. 9(2011) 410-423.
  28. Seemawute Panida, Eiasma-ard Smith.Thermo hydraulics of turbulent flow through a round tube by a peripherally-cut twisted tape with an alternate axis. Int Commun Heat Mass Transf 37(2010) 652-659.
  29. Eiamsa-ard Smith, Thianpong Chinaruk, Eiamsa-ard Petpices, Promvonge Pongjet. Thermal characteristics in a heat exchanger tube fitted with dual twisted tape elements in tandem. Int Commun Heat Mass Transf 37 (2010) 39-46.
  30. Murugesan P,Mayilsamy K, Suresh S, Srinivasan PSS. Heat transfer and pressure drop characteristics in a circular tube fitted with and without V-cut twisted tape insert. Int Commun Heat Mass Transf 38 (2011) 329-334.
  31. S.J.Klein, A. Mc Clintock, The description of uncertainties in a single sample experiments, Mechanical Engineering, 75 (2011) 3-8.
  32. S. Kumar, A. D. Kothiyal, M.S.H Bisht, A Kumar, Turbulent heat transfer and nanofluid flow in a protruded ribbed square passage, Results in Physics, Elsevier Science, 7(2017) 3603-3618.
  33. Amar Raj Singh Suri, A Kumar, Rajesh Maithani, Heat transfer enhancement of heat exchanger tube with multiple square perforated twisted tape inserts: Experimental investigation and correlation development, Chemical Engineering and Processing: Process Intensification,116 (2017) 76-96.
  34. Amar Raj Singh Suri, A Kumar, Rajesh Maithani, Experimental determination of enhancement of heat transfer in a multiple square perforated twisted tape inserts heat exchanger tube, Experimental Heat Transfer 31 (2018) 85-105
  35. Webb, R., Performance evaluation criteria for use of enhanced heat transfer surfaces in heat exchanger design. International Journal of Heat and Mass Transfer, 24 (1981) 715-726.
PDF VERSION [DOWNLOAD]
Fluid flow and heat transfer enhancement in wings with combined solid ring twisted tape inserts circular heat exchanger tube

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence