Analytical Investigation of Exergetic Analysis of Louvered fin Automobile Radiator using Nano Fluids as Coolants

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2018 by IJETT Journal
Volume-59 Number-2
Year of Publication : 2018
Authors : Mr.Krishnpal Singh Tomar, Dr. Suman Sharma
  10.14445/22315381/IJETT-V59P215

MLA 

Mr.Krishnpal Singh Tomar, Dr. Suman Sharma"Analytical Investigation of Exergetic Analysis of Louvered fin Automobile Radiator using Nano Fluids as Coolants", International Journal of Engineering Trends and Technology (IJETT), V59(2),84-95 May 2018. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
It is said that the traditional methods for analysis and design of heat exchanger using first law of thermodynamics emphasized that the energy is conserved quantity wise and disregards the quality of energy. It means it takes no account of wastage of useful energy (available energy) during the heat transfer process. Conventional approach recognizes only the total amount of energy supplied to the system and as a result, this yields the substantive design rather than the thermodynamically efficient one. In the second law analysis all loses are treated as the source of entropy production. It is thus possible to compare and sum them. Second law of thermodynamics is believed to be the supreme law of nature. . Energy waste, appearing in whatever forms, results in reducing the available work from the assigned energy resources. Second law or exergetic viewpoint accounts for this destruction of useful potential work and results in thermodynamically efficient analysis rather than substantive viewpoint of first law. Today, heat exchangers are widely used in automotive industries. The design of a heat exchanger involves consideration of both the heat transfer rates between the fluids and the mechanical power expended to overcome fluid friction and to move the fluids through the heat exchanger. The second law analysis allows the heat exchanger designer to consider both the factors simultaneously as the same is not possible with first law analysis. Therefore, there is a need for systematic design of heat exchangers using a second law based procedure The present research work investigates the exergetic analysis of an automotive radiator having louvered fin-geometry that uses nano-fluids as coolant. The four types of nano-particles (Al2O3, CuO, MgO and ZnO ) are mixed in water by volume. A computer code in C++ language was developed to calculate the second law efficiency with the variation in mass flow rate of air, and coolant, inlet temperature of air and coolant and volume concentration of nano-particles. It is seen that nano-fluids have higher second law efficiency as compared to base fluids water only. About 5% to 7% increment achieved in the second law efficiency with the use of nano-particles (Al2O3, CuO, MgO and ZnO) in water base fluid as compared to base fluid water only. MgO based nano fluid has highest second law efficiency as compared to other nano fluids. However, CuO and ZnO based nano fluids showed almost same second law efficiency. Irreversibility decreased by 4% to 7% by using nano fluids as compared to water coolant only.

Reference
1. J. Koo and C. Kleinstreuer, A new thermal conductivity model for nanofluids. Journal of Nanoparticle Research (2004) 6:577-588.
2. Wei Yu and Huaqing Xie: A Review on Nanofluids: Preparation, Stability Mechanisms, an applications, Journals of nano materials Volume 2012, Article ID 435873, 17 pages doi:10.1155/2012/435873.
3. K. Manjunathand S.C. Kaushik, Second Law Efficiency Analysis of Heat Exchangers. 2013 Wiley Periodicals, Inc. Heat Trans Asian Res; Published online in Wiley Online Library (wileyonlinelibrary.com/journal/htj). DOI 10.1002/htj.21109.
4. Jung-Yang San , Chin-Lon Jan Second-law analysis of a wet cross flow heat exchanger Energy 25 (2000) 939±955.
5. Gabriela Huminic , Angel Huminic Application of nanofluids in heat exchangers: A review, Renewable and Sustainable Energy Reviews 16 (2012) 5625–5638.
6. R. Saidur , K.Y. Leong , H.A. Mohammad A review on applications and challenges of nanofluids Renewable and Sustainable Energy Reviews 15 (2011) 1646–1668.
7. Maiga, S.E.B., C. T. Nguyen, N. Galanis, and G. Roy. Heat transfer behaviours of nanofluids in a uniformly heated tube. superlattices and microstructures 35 (2004) 543-557.
8. J. Sarkar, S. Bhattacharyya, M.R. Gopal, Transcritical CO2 heat pump system: exergy analysis including heat transfer and fluid flow effect, Energy Conversion and Management 46 (2005) 2053-2067.
9. J. Dong, J. Chen, Z. Chen, W. Zhang, Y. Zhou, Heat transfer and pressure drop correlations for the multi-louvered fin compact heat exchangers, Energy Conversion and Management, 48 (2007) 1506–1515.
10. T. H. Tsai, R. Chein, Performance analysis of nanofluid-cooled micro channel heat sinks, International Journal of Heat and Fluid Flow,28 (2007) 1013-1026.
11. W. Yu, D. M. France, S. U. S. Choi, J. L. Routbort, Review and Assessment of Nanofluid Technology for Transportation and Other Applications (No. ANL/ ESD/07-9). Energy System Division, Argonne National Laboratory, Argonne, (2007).
12. P. Gupta, P.K. Kush, A. Tiwari, Second law analysis of counter flow cryogenic heat exchanger in presence of ambient heat-in-leak and longitudinal conduction through wall, International Jopurnal of Heat and Mass Transfer 50 9 (2007) 0 4754-4766.
13. A. Gupta, S.K. Das, Second law analysis of cross-flow heat exchanger in the presence of axial dispersion in one fluid, Energy 32 (2007) 664-672.
14. V. Vasu, K. Rama Krishna and A.C.S. Kumar, Application of nanofluids in thermal design of compact heat exchanger, International Journal of Nanotechnology and Applications, 2(1) (2008), pp. 75-87.
15. V. Velagapudi, R.K Konijeti, C.S.K Aduru, Empirical Correlations to predict thermo physical and heat transfer characteristics of nanofluids, Thermal Science Vol. 12 (2008) no. 2, pp. 27-37.
16. S.M.S Murshed, K.C Leong, C. Yang, Investigation of thermal conductivity and viscosity of nanofluids, International Journal of Thermal Science 47 (2008) 560-568.
17. R S Vajjha, D K Das, Experimental determination of thermal conductivity of three nanofluids and development of new correlations, international journal of heat and mass transfer, 52 (2009) 4675-4682.
18. R S Vajjha, D K Das, Specific heat measurement of three nanofluids and development of new correlations, journal of heat transfer, july (2009), vol. 131/071601-1.
19. R Strandberg, D.K Das, Finned tube performance evaluation with nano fluids and conventional heat transfer fluids, International Journal of Thermal Sciences, 49 (2010) 580-588.
20. K.Y Leong, R Saidur ,S.N Kazi, A.H Mamun, Performance investigation of an automotive car radiator operated with nanofluid-based coolant(nanofluid as a coolant in a radiator), Applied Thermal Engineering, 30 (2010) 2685-2692.
21. M Moosavi, E.K Goharshadi, A. Youssefi, Fabrication, characteristics, and measurement of some physicochemical properties of ZnO nanofluids, International Journal of Heat and Fluid Flow, 31 (2010) 599-605.
22. L.S Sundar, K.V Sharma, Turbulent heat transfer and friction factor of Al2O3 Nanofluid in circular tube with twisted tape insrts, International Journal of Heat and Mass Transfer, 53 (2010) 1409-1416.
23. S. M. Peyghambarzadeh , S. H. Hashemabadi , S. M. Hoseini , M. Seifi Jamnani, Experimental study of heat transfer enhancement using water/ethylene glycol based nanofluids as a new coolant for car radiators, International communication of Heat and Mass transfer ,Article in press (2011).
24. M. Kole, T.K Dey, Thermophysical and pool boiling characteristics of ZnO-ethylene glycol nanofluids , International Journal of Thermal Sciences, 62 (2012) 61-70.
25. L S Sundar, Md. H Farooky, S N Sarada, M.K Singh, Experimental thermal conductivity of ethylene glycol and water mixture based low volume concentration of Al2O3 and CuO nanofluids, International Communications in Heat and Mass Transfer 41(2013) 41-46.
26. A.K Tiwari, P Ghosh, J Sarkar, Performance comparision of the plate heat exchanger using different nanofluids, Experimental Thermal and Fluid Science 49 (2013) 141-151.
27. M.A Khairul, R. Saidur, M.M Rahman, M.A Alim, A Hossain,Z Abdin, Heat transfer and thermodynamic analysis of a helical coiled heat exchanger using different types of nanofluids, International Journal of Heat and Mass Transfer, 67 (2013) 398-403.
28. L S Sundar, E.V. Ramana, M.K. Singh,A.C.M. Sousa, Thermal conductivity and viscosity of stabilized ethylene glycol and water mixture Al2O3 nano-fluids for heat transfer application: An experimental study, International Communications in Heat and Mass Transfer, 56 (2014) 86-95
29. .A.M. Hussein, R.A Bakar, K. Kadirgama, K.V Sharma, Heat transfer enhancement using nanofluids in an automotive cooling system, International Communications in Heat and Mass Transfer, 53 (2014) 195-202.
30. S.A Angayarkanni, J. Philip, Review on thermal properties of nanofluids: Recent developments, Advances in Colloid and Interface Science, 225 (2015) 146-176.
31. Suyitno, D.D.P Thanjana,Sutarmo,S Hadi,A. Emhemed, Effect of the concentration of Zinc oxide nano fluid for enhancing the performance of stirling engine, Advance Materials Research, Vol. 1123 (2015) pp 274-280.
32. Arun kumar Tiwari, Pradyumna Ghosh, Jahar Sarkar, Particle concentration levels of various nanofluids in plate heat exchanger for best performance. International Journal of heat and mass transfer 89 (2015) 1110-1118.
33. R.A Gadekar, K.K Thakur, S. Kumbhare, ZnO a nanofluids in radiator to increase thermal conductivity based on ethylene glycol, IJARIIE-ISSN (O)-2395-4396.

Keywords
Nanofluid, effective thermal conductivity, mathematical modelling, exergetic analysis.