Research Article
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Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert

Year 2017, Volume: 4 Issue: 2, 73 - 86, 10.08.2017

Abstract

In the present study, convective heat transfer coefficient
and pressure drop of Al2O3/water nanofluid in laminar flow
regime under constant inlet temperature conditions inside a circular finned-tube
with a typical twisted tape was experimentally investigated. For this purpose,
Al2O3 nanoparticles of 20 nm size were synthesized,
characterized and dispersed in distilled water to formulate Al2O3/water
nanofluid containing 3 and 5% volume concentration of nanoparticles. The
thermophysical properties like thermal conductivity and viscosity of Al2O3
nanofluid is determined through experiments at different volume
concentrations and validated. Experiments are conducted in the Reynolds number
range of (678–2033) with tape of twist ratio (H/D = 1.85). The effect of
different volume concentrations on convective heat transfer coefficient and
friction factor was studied. The results emphasize that increasing of particle volume
concentration leads to enhance convective heat transfer coefficient.
Measurements show the average heat transfer coefficient enhanced about 21-51 %
with 5% volume concentration and increased about 19-38 % with 3% volume
concentration compared to distilled water. In addition, the average ratio of (fnf/fbf)
was about 2.3 for 5% volume concentration. Therefore, there is a significant
increase in friction factor for nanofluids. A generalized regression equation
is developed for the estimation of Nusselt number and friction factor valid for
nanofluid.
 

References

  • [1] Bergles, A. E. "Handbook of Heat Transfer", McGraw-Hill, New York, NY, USA, 3rd edition, 1998.
  • [2] Adrian B. and Allan K. D. "Heat transfer enhancement" In Heat Transfer Handbook, Chapter 14, pg.1033, -1101, Wiley- 2003.
  • [3] Khaled A. R., Abdulhafiz N. I., and Boukhary A. Y., "Recent Advances in Heat Transfer Enhancements", Hindawi Publishing Corporation InternationalJournal of Chemical Engineering Volume 2010, Article ID 106461.
  • [4] Whitham, J. M., "The Effects of Retarders in Fire Tubes of Steam Boilers", Street Railway.1896, 12(6), 374.
  • [5] Khwanchit Wongcharee, Smith Eiamsa-ard, 2011,"Enhancement of Heat Transfer Using CuO/water Nanofluid and Twisted Tape with Alternate Axis", International Communications in Heat and Mass Transfer., 38:742–748.
  • [6] E. Esmaeilzadeh, H. Almohammadi, A. Nokhosteen, A. Motezaker and A. N. Omrani, "Study on Heat Transfer and Friction Factor Characteristics of γ-Al2O3/water Through Circular Tube with Twisted Tape Inserts with Different Thicknesses", International Journal of Thermal Sciences, 82 (2014) 72-83.
  • [7] Naik M. T., Ranga Janardana G., Syam Sundar L., "Experimental Investigation of Heat Transfer and Friction Factor with Water–Propylene Glycol Based CuO Nanofluid in a Tube with Twisted Tape Inserts", International Communications in Heat and Mass Transfer, 46, (2013), 13–21.
  • [8] L. Syam Sundar and K.V. Sharma, "LAMINAR CONVECTIVE HEAT TRANSFER AND FRICTION FACTOR OF AL2O3 NANOFLUID IN CIRCULAR TUBE FITTED WITH TWISTED TAPE INSERTS", International Journal of Automotive and Mechanical Engineering (IJAME), 3, (2011), 265-278.
  • [9] Suresh S, Venkitaraj KP, Selvakumar P., "Comparative study on thermal performance of helical screw tape inserts in laminar flow using Al2O3/water and CuO/water nanofluids". Super lattices and Microstructures 2011; 49:608–22.
  • [10] Suresh S, Venkitaraj KP, Selvakumar P, Chandrasekar M., "A comparison of thermal characteristics of Al2O3/water and CuO/water nanofluids in transition flow through a straight circular duct fitted with helical screw tape inserts", Experimental Thermal and Fluid Science 2012;39:37–44.
Year 2017, Volume: 4 Issue: 2, 73 - 86, 10.08.2017

Abstract

References

  • [1] Bergles, A. E. "Handbook of Heat Transfer", McGraw-Hill, New York, NY, USA, 3rd edition, 1998.
  • [2] Adrian B. and Allan K. D. "Heat transfer enhancement" In Heat Transfer Handbook, Chapter 14, pg.1033, -1101, Wiley- 2003.
  • [3] Khaled A. R., Abdulhafiz N. I., and Boukhary A. Y., "Recent Advances in Heat Transfer Enhancements", Hindawi Publishing Corporation InternationalJournal of Chemical Engineering Volume 2010, Article ID 106461.
  • [4] Whitham, J. M., "The Effects of Retarders in Fire Tubes of Steam Boilers", Street Railway.1896, 12(6), 374.
  • [5] Khwanchit Wongcharee, Smith Eiamsa-ard, 2011,"Enhancement of Heat Transfer Using CuO/water Nanofluid and Twisted Tape with Alternate Axis", International Communications in Heat and Mass Transfer., 38:742–748.
  • [6] E. Esmaeilzadeh, H. Almohammadi, A. Nokhosteen, A. Motezaker and A. N. Omrani, "Study on Heat Transfer and Friction Factor Characteristics of γ-Al2O3/water Through Circular Tube with Twisted Tape Inserts with Different Thicknesses", International Journal of Thermal Sciences, 82 (2014) 72-83.
  • [7] Naik M. T., Ranga Janardana G., Syam Sundar L., "Experimental Investigation of Heat Transfer and Friction Factor with Water–Propylene Glycol Based CuO Nanofluid in a Tube with Twisted Tape Inserts", International Communications in Heat and Mass Transfer, 46, (2013), 13–21.
  • [8] L. Syam Sundar and K.V. Sharma, "LAMINAR CONVECTIVE HEAT TRANSFER AND FRICTION FACTOR OF AL2O3 NANOFLUID IN CIRCULAR TUBE FITTED WITH TWISTED TAPE INSERTS", International Journal of Automotive and Mechanical Engineering (IJAME), 3, (2011), 265-278.
  • [9] Suresh S, Venkitaraj KP, Selvakumar P., "Comparative study on thermal performance of helical screw tape inserts in laminar flow using Al2O3/water and CuO/water nanofluids". Super lattices and Microstructures 2011; 49:608–22.
  • [10] Suresh S, Venkitaraj KP, Selvakumar P, Chandrasekar M., "A comparison of thermal characteristics of Al2O3/water and CuO/water nanofluids in transition flow through a straight circular duct fitted with helical screw tape inserts", Experimental Thermal and Fluid Science 2012;39:37–44.
There are 10 citations in total.

Details

Subjects Mechanical Engineering
Journal Section Research Article
Authors

LAITH JAAFER Al-saady 0000-0002-2808-4432

Fouad A. Saleh This is me

Bassim M. Maajel This is me

Publication Date August 10, 2017
Submission Date March 4, 2017
Published in Issue Year 2017 Volume: 4 Issue: 2

Cite

APA Al-saady, L. J., A. Saleh, F., & M. Maajel, B. (2017). Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert. International Journal of Energy Applications and Technologies, 4(2), 73-86.
AMA Al-saady LJ, A. Saleh F, M. Maajel B. Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert. IJEAT. August 2017;4(2):73-86.
Chicago Al-saady, LAITH JAAFER, Fouad A. Saleh, and Bassim M. Maajel. “Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted With Twisted Tape Insert”. International Journal of Energy Applications and Technologies 4, no. 2 (August 2017): 73-86.
EndNote Al-saady LJ, A. Saleh F, M. Maajel B (August 1, 2017) Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert. International Journal of Energy Applications and Technologies 4 2 73–86.
IEEE L. J. Al-saady, F. A. Saleh, and B. M. Maajel, “Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert”, IJEAT, vol. 4, no. 2, pp. 73–86, 2017.
ISNAD Al-saady, LAITH JAAFER et al. “Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted With Twisted Tape Insert”. International Journal of Energy Applications and Technologies 4/2 (August 2017), 73-86.
JAMA Al-saady LJ, A. Saleh F, M. Maajel B. Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert. IJEAT. 2017;4:73–86.
MLA Al-saady, LAITH JAAFER et al. “Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted With Twisted Tape Insert”. International Journal of Energy Applications and Technologies, vol. 4, no. 2, 2017, pp. 73-86.
Vancouver Al-saady LJ, A. Saleh F, M. Maajel B. Experimental Investigation of Laminar Convective Heat Transfer and Pressure Drop of Al2O3/Water Nanofluid in Circular Tube Fitted with Twisted Tape Insert. IJEAT. 2017;4(2):73-86.