Nanofluids in solar collectors

Nanofluid-based direct solar collectors are solar thermal collectors where nanoparticles in a liquid medium can scatter and absorb solar radiation. They have recently received interest to efficiently distribute solar energy. Nanofluid-based solar collector have the potential to harness solar radiant energy more efficiently compared to conventional solar collectors. [1][2][3][4][5][6][7] Nanofluids have recently found relevance in applications requiring quick and effective heat transfer such as industrial applications, cooling of microchips, microscopic fluidic applications, etc. Moreover, in contrast to conventional heat transfer (for solar thermal applications) like water, ethylene glycol, and molten salts, nanofluids are not transparent to solar radiant energy; instead, they absorb and scatter significantly the solar irradiance passing through them.[8] Typical solar collectors use a black-surface absorber to collect the sun's heat energy which is then transferred to a fluid running in tubes embedded within. Various limitations have been discovered with these configuration and alternative concepts have been addressed. Among these, the use of nanoparticles suspended in a liquid is the subject of research. Nanoparticle materials including aluminium,[9] copper,[10] carbon nanotubes[11] and carbon-nanohorns have been added to different base fluids and characterized in terms of their performance for improving heat transfer efficiency.[12]

  1. ^ Sreekumar, S.; Shah, N.; Mondol, J.; Hewitt, N.; Chakrabarti, S. (February 2022). "Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: A comprehensive review". Nano Futures. 103 (2): 504–515. Bibcode:2022NanoF...6b2002S. doi:10.1088/2399-1984/ac57f7. S2CID 247095942.
  2. ^ Taylor, Robert A.; Otanicar, Todd; Rosengarten, Gary (2012). "Nanofluid-based optical filter optimization for PV/T systems". Light: Science & Applications. 1 (10): e34. Bibcode:2012LSA.....1E..34T. doi:10.1038/lsa.2012.34.
  3. ^ Otanicar, Todd P.; Phelan, Patrick E.; Prasher, Ravi S.; Rosengarten, Gary; Taylor, Robert A. (1 May 2010). "Nanofluid-based direct absorption solar collector". Journal of Renewable and Sustainable Energy. 2 (3): 033102. doi:10.1063/1.3429737. Retrieved 2 December 2022.
  4. ^ Taylor, Robert A.; Phelan, Patrick E.; Otanicar, Todd P.; Walker, Chad A.; Nguyen, Monica; Trimble, Steven; Prasher, Ravi (1 March 2011). "Applicability of nanofluids in high flux solar collectors". Journal of Renewable and Sustainable Energy. 3 (2): 023104. doi:10.1063/1.3571565. Retrieved 2 December 2022.
  5. ^ "Journal of Applied Physics".
  6. ^ Khullar, Vikrant; Tyagi, Himanshu; Hordy, Nathan; Otanicar, Todd P.; et al. (2014). "Harvesting solar thermal energy through nanofluid-based volumetric absorption systems". International Journal of Heat and Mass Transfer. 77: 377–384. Bibcode:2014IJHMT..77..377K. doi:10.1016/j.ijheatmasstransfer.2014.05.023.
  7. ^ Amir Moradi; Elisa Sani; Marco Simonetti; Franco Francini; Eliodoro Chiavazzo & Pietro Asinari (2015). "Carbon-nanohorn based nanofluids for a direct absorption solar collector for civil application (Carbon-nanohorn Nanofluids)". Journal of Nanoscience and Nanotechnology. 15 (5): 3488–3495. doi:10.1166/jnn.2015.9837. PMID 26504968.
  8. ^ Phelan, Patrick; Otanicar, Todd; Taylor, Robert; Tyagi, Himanshu (2013). "Trends and Opportunities in Direct-Absorption Solar Thermal Collectors". Journal of Thermal Science and Engineering Applications. 5 (2): 021003. doi:10.1115/1.4023930.
  9. ^ Dongsheng Wen; Yulong Ding (2005). "Experimental investigation into the pool boiling heat transfer of aqueous based γ-alumina nanofluids". Journal of Nanoparticle Research. 7 (2–3): 265–274. Bibcode:2005JNR.....7..265W. doi:10.1007/s11051-005-3478-9. S2CID 98076428.
  10. ^ Min-Sheng Liu; Mark Ching-Cheng Lin; C.Y. Tsai; Chi-Chuan Wang (August 2006). "Enhancement of thermal conductivity with Cu for nanofluids using chemical reduction method". International Journal of Heat and Mass Transfer. 49 (17–18): 3028–3033. Bibcode:2006IJHMT..49.3028L. doi:10.1016/j.ijheatmasstransfer.2006.02.012.
  11. ^ Dongsheng Wen & Yulong Ding (2004). "Effective Thermal Conductivity of Aqueous Suspensions of Carbon Nano tubes (Carbon Nanotube Nanofluids)". Journal of Thermophysics and Heat Transfer. 18 (4): 481–485. doi:10.2514/1.9934.
  12. ^ Taylor, Robert A.; Phelan, Patrick E. (November 2009). "Pool boiling of nanofluids: Comprehensive review of existing data and limited new data". International Journal of Heat and Mass Transfer. 52 (23–24): 5339–5347. Bibcode:2009IJHMT..52.5339T. doi:10.1016/j.ijheatmasstransfer.2009.06.040.