Journals / Mugla Journal of Science and Technology / 2021 / Cilt: 7 - Sayı: 1

ENERGY, ENTROPY AND EXERGY ANALYSES OF HYBRID NANOFLUID FLOW IN A TRAPEZOIDAL CHANNEL

Pages
106–116
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Furthermore, hybrid nanofluid has the lowest entropy generation value.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study presents energy, entropy, and exergy analyses of Al2O3-Cu/water hybrid nanofluid flow in a trapezoidal cross-sectioned channel under a turbulent regime ( 104<Re<105) for the first time.
📊
Key Findings & Data:Understanding the main source of the entropy generation along the channel, also obtaining the total entropy variation of hybrid nanofluid comparing to single nanofluids (Al2O3/water and Cu/water) and base fluid is pursued objective.
💡
Conclusion & Impact:Furthermore, hybrid nanofluid has the lowest entropy generation value.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Hybrid Nanofluid · CFD · Turbulent Flow

Abstract

This study presents energy, entropy, and exergy analyses of Al2O3-Cu/water hybrid nanofluid flow in a trapezoidal cross-sectioned channel under a turbulent regime (104<Re<105) for the first time. Understanding the main source of the entropy generation along the channel, also obtaining the total entropy variation of hybrid nanofluid comparing to single nanofluids (Al2O3/water and Cu/water) and base fluid is pursued objective. In other to perform these aforementioned analyses, a realistic model, in which all formulas are derived, is developed and thermodynamic concepts such as exergy efficiency and exergy destruction for hybrid nanofluid flow in a non-circular cross-sectioned channel are discussed for the first time. Results obtaining from the analyses of both hybrid and single nanofluids have been compared and discussed for volumetric concentrations of 1.0% and 2.0%. As a result, it is obtained that 2.0% volume concentration hybrid nanofluid offers the best convective heat transfer performance with 34% enhancement and best exergetic performance. Furthermore, hybrid nanofluid has the lowest entropy generation value.

🔖

Cite This Article

TEKİR, M., BAYAT, M., ARSLAN, K. (2021). ENERGY, ENTROPY AND EXERGY ANALYSES OF HYBRID NANOFLUID FLOW IN A TRAPEZOIDAL CHANNEL. Mugla Journal of Science and Technology, Cilt: 7 - Sayı: 1, 106–116. https://ajindex.com/articles/341000

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Takabi, B. and Shokouhmand, H., “Effects of Al2O3-Cu/water hybrid nanofluid on heat transfer and flow characteristics in turbulent regime,” Int. J. Mod. Phys. C, vol. 26, no. 4, p. 1550047, 2015.
  2. Selvakumar, P. and Suresh, S., “Use of Al2O3-Cu/water Hybrid Nanofluid in an Electronic Heat Sink,” IEEE Trans. Components, Packag. Manuf. Tech., vol. 2, no. 10, pp. 1600–1607, 2012.
  3. Suresh, S., Venkitaraj, K. P., Selvakumar, P., and Chandrasekar, M., "Effect of Al2O3-Cu/water hybrid nanofluid in heat transfer", Experimental Thermal And Fluid Science, 38: 54–60 (2012).
  4. Suresh, S., Venkitaraj, K. P., Selvakumar, P., and Chandrasekar, M., "Synthesis of Al2O3-Cu/water hybrid nanofluids using two step method and its thermo physical properties", Colloids And Surfaces A: Physicochemical And Engineering Aspects, 388 (1–3): 41–48 (2011).
  5. Moghadassi, A., Ghomi, E., and Parvizian, F., "A numerical study of water based Al2O3 and Al2O3-Cu hybrid nanofluid effect on forced convective heat transfer", International Journal Of Thermal Sciences, 92: 50–57 (2015).
  6. Ahammed, N., Asirvatham, L. G., and Wongwises, S., "Entropy generation analysis of graphene–alumina hybrid nanofluid in multiport minichannel heat exchanger coupled with thermoelectric cooler", International Journal Of Heat And Mass Transfer, 103: 1084–1097 (2016).
  7. Moghaddami, M., Mohammadzade, A., and Esfehani, S. A. V., "Second law analysis of nanofluid flow", Energy Conversion And Management, 52 (2): 1397–1405 (2011).
  8. Singh, P. K., Ahmed, N. Z., Das, S. K. and Shatilla, Y., “Exergy Analysis of Nanofluids In Microchannel”, 9th International Conference on Nanochannels, Microchannels, and Minichannels (ICNMM2011),
  9. Alberta, Canada, pp. 1–9, June 19-22, 2011.
  10. Bianco, V., Nardini, S. and Manca, O., “Enhancement of heat transfer and entropy generation analysis of nanofluids turbulent convection flow in square section tubes,” Nanoscale Research Letters, vol. 6, no. 252, pp. 1–12, 2011.
  11. Ji, Y., Zhang, H., Yang, X. and Shi, L., “Entropy Generation Analysis and Performance Evaluation of Turbulent Forced Convective Heat Transfer to Nanofluids,” Entropy, vol. 19, no. 108, pp. 1–18, 2017.
  12. Amirahmadi, S., Rashidi, S., and Abolfazli Esfahani, J., "Minimization of exergy losses in a trapezoidal duct with turbulator, roughness and beveled corners", Applied Thermal Engineering, 107: 533–543 (2016).
  13. London, W. M. K. and A. L., "Compact Heat Exchangers", McGraw-Hill, New York, USA, (1964).
  14. Dhariwal, S. M. F. and R. S., "Experimental and Nu