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EFFECTS OF A MIXTURE OF CuO AND Al₂O₃ NANOPARTICLES ON THE THERMAL EFFICIENCY OF A FLAT PLATE SOLAR COLLECTOR AT DIFFERENT MASS FLOW RATES

ABSTRAKT

This research experimentally investigates the effects of adding nanoparticles with a volume fraction of 0.1% on the thermal efficiency of a flat plate solar collector at different mass flow rates. CuO/water and Al₂O₃/water nanofluids were studied in mixtures with different mass ratios. The results show that the nanofluids increase the efficiency of the solar collector significantly. The best mass flow rate was obtained for each nanofluid to obtain the maximum collector efficiency. Compared with water, the solar collector efficiency at the optimal rate is increased by 50%, 16%, 15%, 8%, and 2% for CuO, Al₂O₃, 25% CuO + 75% Al₂O₃, 75% CuO + 25% Al₂O₃, and 50% CuO + 50% Al₂O₃, respectively. Because of the high thermal conductivity of the CuO nanoparticles, the energy received from the collector increases. The highest energy absorption occurs in the case of CuO nanoparticles, followed by Al₂O₃ nanoparticles. Although the Brownian motion of Al₂O₃particles can be a significant feature in the heat transfer properties, the high thermal conductivity of CuO had a greater effect. Finally, the heat loss and heat absorption through the solar collector were calculated for all of the nanofluids to confirm the results.

REFERENZEN

1. Bazdidi-Tehrani, F., Khabazipur, A., and Vasefi , S.I., Flow and Heat Transfer Analysis of TiO₂/Water Nanofluid in a Ribbed Flat-Plate Solar Collector, Renew. Energy, vol. 122, pp. 406–418, 2018. DOI: 10.1016/j.renene.2018.01.056

2. Bellos, E. and Tzivanidis, C., Performance Analysis and Optimization of an Absorption Chiller Driven by Nanofluid based Solar Flat Plate Collector, J. Clean Prod., vol. 174, pp. 256–272, 2018. DOI: 10.1016/j.jclepro.2017.10.313

3. Duffie, J.A. and Beckman, W.A. , Solar Engineering of Thermal Processes, New York: John Wiley and Sons, 2013.

4. Eastman, J.A., Choi, U.S., Li, S., Thompson, L.J., and Lee, S., , Enhanced Thermal Conductivity through the Development of Nanofluids, MRS Online Proc. Library Archive, vol. 457, 1996. DOI: 10.1557/PROC-457-3

5. Esfe, M.H., Mahian, O., Hajmohammad, M.H., and Wongwises, S., Design of a Heat Exchanger Working with Organic Nanofluids Using Multi-Objective Particle Swarm Optimization Algorithm and Response Surface Method, Int. J. Heat Mass Transf., vol. 119, pp. 922–930, 2018. DOI: 10.1016/j.ijheatmasstransfer.2017.12.009

6. Farajzadeh, E., Movahed, S., and Hosseini, R., Experimental and Numerical Investigations on the Effect of Al₂O₃/TiO₂H₂O Nanofluids on Thermal Efficiency of the Flat Plate Solar Collector, Renew. Energy, vol. 118, pp. 122–130, 2018. DOI: 10.1016/j.renene.2017.10.102

7. Genc, A.M., Ezan, M.A., and Turgut, A., Thermal Performance of a Nanofluid-Based Flat Plate Solar Collector: A Transient Numerical Study, Appl. Therm. Eng., vol. 130, pp. 395–407, 2018. DOI: 10.1016/j.applthermaleng.2017.10.166

8. Ghadimi, A., Saidur, R., and Metselaar, H.S.C., A Review of Nanofluid Stability Properties and Characterization in Stationary Conditions, Int. J. Heat Mass Transf., vol. 54, pp. 4051–4068, 2011. DOI: 10.1016/j.ijheatmasstransfer.2011.04.014

9. Hajabdollahi, F. and Premnath, K., Numerical Study of the Effect of Nanoparticles on Thermoeconomic Improvement of a Solar Flat Plate Collector, Appl. Therm. Eng., vol. 127, pp. 390–401, 2017. DOI: 10.1016/j.applthermaleng.2017.08.058

10. Hajabdollahi, H. and Hajabdollahi, Z., Assessment of Nanoparticles in Thermoeconomic Improvement of Shell and Tube Heat Exchanger, Appl. Therm. Eng., vol. 106, pp. 827–837, 2016. DOI: 10.1016/j.applthermaleng.2016.06.061

11. Hajabdollahi, H. and Hajabdollahi, Z., Investigating the Effect of Nanoparticle on Thermo-Economic Optimization of Fin and Tube Heat Exchanger, Proc. Inst. Mech. Eng., Part E, vol. 231, pp. 1127–1140, 2017a. DOI: 10.1177/0954408916656677

12. Hajabdollahi, H. and Hajabdollahi, Z., Numerical Study on Impact Behavior of Nanoparticle Shapes on the Performance Improvement of Shell and Tube Heat Exchanger, Chem. Eng. Res. Des., vol. 125, pp. 449–460, 2017b. DOI: 10.1016/j. cherd.2017.05.005

13. Hajabdollahi, H., Economic Optimization of Shell and Tube Heat Exchanger Using Nanofluid, World Academy of Science, Engineering and Technology, Int. J. Mech., Aerospace, Industry, Mech. Manufact. Eng., vol. 11, pp. 1350–1354, 2017. DOI: 1999.8/10007734

14. Hajabdollahi, H., Investigating the Effect of Nanofluid on Optimal Design of Solar Flat Plate Collector, in Renewable Energy: Generation and Applications (ICREGA), 2018 5th International Conf., pp. 188–191, IEEE, 2018.

15. Hajabdollahi, Z., Hajabdollahi, H., and Fu, P.F., The Effect of Using Different Types of Nanoparticles on Optimal Design of Fin and Tube Heat Exchanger, Asia-Pac. J. Chem. Eng., vol. 12, pp. 905–918, 2017. DOI: 10.1002/apj.2128

16. Hawwash, A.A., Ali, K., Abdel Rahman, S.A., and Ookawara, S., Numerical Investigation and Experimental Verification of Performance Enhancement of Flat Plate Solar Collector Using Nanofluids, Appl. Therm. Eng., vol. 130, pp. 363–374, 2018. DOI: 10.1016/j.applthermaleng.2017.11.027

17. Hay, J.E., Calculation of the Solar Radiation Incident on Inclined Surfaces, in Proc. First Canadian Solar Radiation Data Workshop, Toronto, Ontario, Canada, 1978.

18. He, Q., Zeng, S., and Wang, S., Experimental Investigation on the Efficiency of Flat-Plate Solar Collectors with Nanofluids, Appl. Therm. Eng., vol. 88, pp. 165–171, 2015. DOI: 10.1016/j.applthermaleng.2014.09.053

19. Jouybari, H.J., Saedodin, S., Zamzamian, A., Nimvari, M.E., and Wongwises, S., Effects of Porous Material and Nanoparticles on the Thermal Performance of a Flat Plate Solar Collector: An Experimental Study, Renew. Energy, vol. 114, pp. 1407– 1418, 2017. DOI: 10.1016/j.renene.2017.07.008

20. Kiliç, F., Menlik, T., and Sözen, A., Effect of Titanium Dioxide/Water Nanofluid Use on Thermal Performance of the Flat Plate Solar Collector, Solar Energy, vol. 164, pp. 101–108, 2018. DOI: 10.1016/j.solener.2018.02.002

21. Laukkanen, T. and Seppälä, A., Interplant Heat Exchanger Network Synthesis Using Nanofluids for Interplant Heat Exchange, Appl. Therm. Eng., vol. 135, pp. 133–144, 2018. DOI: 10.1016/j.applthermaleng.2018.01.114

22. Mirzaei, M., Experimental Investigation of the Assessment of Al₂O₃–H₂O and CuO–H₂O Nanofluids in a Solar Water Heating System, J. Energy Storage, vol. 14, pp.71–81, 2017. DOI: 10.1016/j.est.2017.09.012

23. Mirzaei, M., Hosseini, S.M.S., and Kashkooli, A.M.M., Assessment of Al₂O₃ Nanoparticles for the Optimal Operation of the Flat Plate Solar Collector, Appl. Therm. Eng., vol. 134, pp. 68–77, 2018. DOI: 10.1016/j.applthermaleng.2018.01.104

24. Moghadam, A.J. Farzane-Gord, M., Sajadi, M., and Hoseyn Zadeh, M., Effects of CuO/Water Nanofluid on the Efficiency of a Flat-Plate Solar Collector, Exp. Therm. Fluid. Sci., vol. 58, pp. 9–14, 2014. DOI: 10.1016/j.expthermfl usci.2014.06.014

25. Murshed, S.M.S., Leong, K.C., and Yang, C., Investigations of Thermal Conductivity and Viscosity of Nanofluids, Int. J. Therm. Sci., vol. 47, pp. 560–568, 2008. DOI: 10.1016/j.ijthermalsci.2007.05.004

26. Sarsam, W.S., Kazi, S.N., and Badarudin, A., A Review of Studies on Using Nanofluids in Flat-Plate Solar Collectors, Solar Energy, vol. 122, pp. 1245–1265, 2015. DOI: 10.1016/j.solener.2015.10.032

27. Sharafeldin, M.A. and Gróf, G., Evacuated Tube Solar Collector Performance Using CeO₂/Water Nanofluid, J. Clean Prod., vol. 185, pp. 347–356, 2018a. DOI: 10.1016/j.jclepro.2018.03.054

28. Sharafeldin, M.A. and Gróf, G., Experimental Investigation of Flat Plate Solar Collector Using CeO₂–Water Nanofluid, Energy Convers. Manage., vol. 155, pp. 32–41, 2018b. DOI: 10.1016/j.enconman.2017.10.070

29. Sharafeldin, M.A., Gróf, G., and Mahian, O., Experimental Study on the Performance of a Flat-Plate Collector Using WO₃/Water Nanofluids, Energy, vol. 141, pp. 2436–2444 2017. DOI: 10.1016/j.energy.2017.11.068

30. Sint, N.K.C., Choudhury, I.A., Choudhury, H.H.M., and Aoyama, H., Theoretical Analysis to Determine the Efficiency of a CuO–Water Nanofluid Based-Flat Plate Solar Collector for Domestic Solar Water Heating System in Myanmar, Solar Energy, vol. 15, pp. 608–619, 2017. DOI: 10.1016/j.solener.2017.06.055

31. Suresh, S., Venkitaraj, K.P., Selvakumar, P., and Chandrasekar, M., Synthesis of Al₂O₃–Cu/Water Hybrid Nanofluids Using Two Step Method and Its Thermophysical Properties, Colloids Surf. A Physicochem. Eng. Asp., vol. 388, pp. 41–48, 2011. DOI: 10.1016/j.colsurfa.2011.08.005

32. Verma, S.K., Arun Kumar, T., and Durg Singh, C., Experimental Evaluation of Flat Plate Solar Collector Using Nanofluids, Energy Convers. Manage., vol. 134, pp. 103–115, 2017. DOI: 10.1016/j.enconman.2016.12.037

33. Verma, S.K., Arun, K.T., Sandeep, T., and Durg, S.C., Performance Analysis of Hybrid Nanofluids in Flat Plate Solar Collector as an Advanced Working Fluid, Solar Energy, vol. 167, pp. 231–241, 2018. DOI: 10.1016/j.solener.2018.04.017