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Journal of Enhanced Heat Transfer
IF: 1.406 5-Year IF: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Print: 1065-5131
ISSN Online: 1563-5074

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2020032392
pages 159-171

EXPERIMENTAL INVESTIGATIONS ON THE COMBINED EFFECT OF NANOFLUID AND ULTRASONIC FIELD ON AMMONIA BUBBLE ABSORPTION

Yingying Yang
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China; Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China
Weidong Wu
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China; Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China
Hengbo Tang
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China; Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China
Jian Lu
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China; Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China

ABSTRACT

This article investigates the enhancement effect of nanofluid and ultrasonic fields separately and simultaneously on ammonia bubble absorption in the absorber for improving the efficiency of the absorption refrigeration system. Ammonia bubble absorption experiments are carried out in a visualized absorber. Three nanofluids (Al2O3, Fe2O3, and multiwalled carbon nanotubes [MWNTs]) at different concentrations and ultrasonic fields of single frequency (20 kHz, 28 kHz, and 40 kHz) and mixed frequency (20-28 kHz, 20-40 kHz, 28-40 kHz, and 20-28-40 kHz) are studied as enhancement factors. The absorption amount of ammonia and the effective absorption ratio, with and without enhancement factors, are obtained during the experiments. The bubble behaviors during the absorption process are observed: occurs, grows, detaches, diffuses, transforms, and vanishes. The results show that the addition of nanofluids enhances the heat and mass transfer process in the absorber. This enhancement ability follows Fe2O3 > Al2O3 > MWNTs. The effective absorption ratio achieves 1.16 enhanced by Fe2O3 nanofluid of 0.020 wt%. For the ultrasonic field of single frequency, the higher the frequency, the higher the effective absorption ratio. The mixed ultrasonic field results in better effects than the single ultrasonic field. Under the mixed ultrasonic field of 20-28-40 kHz, the effective absorption ratio reaches 1.11. Finally, the effect of combined actions of nanofluid and ultrasonic field are tested. The effective absorption ratio is 1.22 with the ultrasonic field of 20-28-40 kHz and nanofluid of 0.020 wt% Fe2O3.

REFERENCES

  1. Cadwell, L.H., Morris, R.C., and Moulton, W.G., Normal and Superconducting Properties of the Mixed Hexagonal Tungsten Bronze RbxCsyWO3, Phys. BC, vol. 107, pp. 525-526,1981.

  2. Cerezo, J., Bourouis, M., Valles, M., Coronas, A., and Best, R., Experimental Study of an Ammonia-Water Bubble Absorber Using a Plate Heat Exchanger for Absorption Refrigeration Machines, Appl. Therm. Eng., vol. 29, pp. 1005-1011,2009.

  3. Chen, X., Wang, R.Z., and Du, S., An Improved Cycle for Large Temperature Lifts Application in Water-Ammonia Absorption System, Energy, vol. 118, pp. 1361-1369,2017a.

  4. Chen, X., Wang, R.Z., Wang, L.W., and Du, S., A Modified Ammonia-Water Power Cycle Using a Distillation Stage for More Efficient Power Generation, Energy, vol. 138, pp. 1-11,2017b.

  5. Du, S., Wang, R.Z., and Chen, X., Development and Experimental Study of an Ammonia Water Absorption Refrigeration Prototype Driven by Diesel Engine Exhaust Heat, Energy, vol. 130, pp. 420-432,2017.

  6. Fard, A.M., Mirjalily, S.A.A., and Ahrar, A.J., Influence of Carbon Nanotubes on Pressure Drop and Heat Transfer Rate of Water in Helically Coiled Tubes, J. Enhanc. Heat Transf, vol. 26, pp. 217-233,2019.

  7. Fernandez-Seara, J., Sieres, J., Rodriguez, C., and Vazquez, M., Ammonia-Water Absorption in Vertical Tubular Absorbers, Int. J. Therm. Sci., vol. 44, pp. 277-288,2005.

  8. Guo,Z., Heat Transfer Enhancement-A Brief Review of 2018 Literature, J. Enhanc. Heat Transf., vol. 26, pp. 429-449,2019.

  9. Jiang, W., Li, S., Yang, L., and Du, K., Experimental Investigation on Performance of Ammonia Absorption Refrigeration System with TiO2 Nanofluid, Int. J. Refrig, vol. 98, pp. 80-88,2019.

  10. Kim, J.-K., Jung, J.Y., andKang, Y.T., Absorption Performance Enhancement by Nano-Particles and Chemical Surfactants in Binary Nanofluids, Int. J. Refrig, vol. 30, pp. 50-57,2007.

  11. Kumar Dhawan, P., Upadhyay, S., Verma, S.K., Wan, M., Yadav, R.R., and Joshi, B., Size and Temperature Dependent Ultrasonic Properties of Thermoelectric Nanowires, Mater. Lett., vol. 114, pp. 15-18,2014.

  12. Kumar, S., Kothiyal, A.D., Bisht, M.S., and Kumar, A., Effect of Nanofluid Flow and Protrusion Ribs on Performance in Square Channels: An Experimental Investigation, J. Enhanc. Heat Transf., vol. 26, pp. 75-100,2019.

  13. Kuppa, R. and Moholkar, V.S., Physical Features of Ultrasound-Enhanced Heterogeneous Permanganate Oxidation, Ultrason. Sonochem., vol. 17, pp. 123-131,2010.

  14. Legay, M., Gondrexon, N., Le Person, S., Boldo, P., and Bontemps, A., Enhancement of Heat Transfer by Ultrasound: Review and Recent Advances, Int. J. Chem. Eng., vol. 2011, pp. 1-17,2011.

  15. Ma, X., Su, F., Chen, J., Bai, T., and Han, Z., Enhancement of Bubble Absorption Process Using a CNTs-Ammonia Binary Nanofluid, Int. Commun. Heat Mass Transf., vol. 36, pp. 657-660,2009.

  16. Matula, T.J. and Roy, R.A., Comparisons of Sonoluminescence from Single-Bubbles and Cavitation Fields: Bridging the Gap, Ultrason. Sonochem., vol. 4, pp. 61-64,1997.

  17. Richards, W.T. and Loomis, A.L., The Chemical Effects of High Frequency Sound Waves, J. Mech. Sci. Technol, vol. 49, pp. 3086-3088,1927.

  18. Shahriari, A., Javaran, E.J., and Rahnama, M., Simulation of Natural Convection of an Al2O3/Water Nanofluid in a Complex Wavy-Wall Cavity Using the Lattice Boltzmann Method, Heat Transf. Res., vol. 50, pp. 1513-1530,2019.

  19. Siddiqui, M.U. and Said, S.A.M., A Review of Solar Powered Absorption Systems, Renew. Sustain. Energy Rev., vol. 42, pp. 93-115,2015.

  20. Wu, W., Wang, B., Shi, W., and Li, X., An Overview of Ammonia-Based Absorption Chillers and Heat Pumps, Renew. Sustain. Energy Rev., vol. 31, pp. 681-707,2014.

  21. Wu, W.D., Liu, G., Chen, S.X., and Zhang, H., Nanoferrofluid Addition Enhances Ammonia/Water Bubble Absorption in an External Magnetic Field, Energy Build., vol. 57, pp. 268-277,2013.

  22. Wu, X., Liu, J., Xu, S., and Wang, W., Effect of Vibration Parameters on the Bubble Absorption Characteristics of Working Fluids R134a-DMAC in a Vertical Tube, Int. J. Refrig, vol. 99, pp. 234-242, 2019.

  23. Wu, X., Xu, S., and Jiang, M., Development of Bubble Absorption Refrigeration Technology: A Review, Renew. Sustain. Energy Rev, vol. 82, pp. 3468-3482,2018.

  24. Yao, Y., Research and Applications of Ultrasound in HVAC Field: A Review, Renew. Sustain. Energy Rev., vol. 58, pp. 52-68,2016.


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