BibTex RIS Kaynak Göster

Exergy of Nano-Particulate Materials

Yıl 2014, Cilt: 17 Sayı: 3, 163 - 169, 24.09.2014
https://doi.org/10.5541/ijot.556

Öz

Nano-particle (NP) production processes may involve the use of significant amounts of complex chemicals. A more advanced approach for producing metallic NP materials may be the use of high voltage arc- or spark-driven systems. In addition to a reduction in chemicals use, the energy use of arcs/sparks exclusively in the form of electricity may be significantly less than the energy needs of waste stream processing from chemical usage, handling and post-treatment in nano-tech industry. Using exergy as a fundamental tool we assess the energy efficiency of NP material production, a subject obscured by lack of data and literature. One goal of this paper is to introduce a description of the exergy of NP materials and their processing. Silver, gold, copper, nickel, zinc and aluminium were taken as case studies. The results show that especially for NP material < 20 nm the surface energy of the material becomes significant. Moreover, a large energy penalty results from temperatures and enthalpies of NP condensation and solidification being lower than values for melting and evaporation of the bulk material. Comparing theoretical values with results from experiments shows that the specific electricity consumption is orders of magnitude higher than the energy penalties calculated as inevitable.

Kaynakça

  • Buonapart-e, EU FP7 project Better Up-scaling and Optimization of Nanoparticle and Nanostructure Production by Means of Electrical Discharges 201220 Available at: <http://www.buonapart-e.eu/> [Accessed 20.12.2012].
  • M. Stein, D. Kiesler, F.E. Kruis, Effect of carrier gas 20 40 60 80 100 Particle diameter D (nm) 50000 20 40 60 80 100 Ex er gy lo ss m elt v s. so lid ific at io n (J /k g) Particle diameter D (nm)
Yıl 2014, Cilt: 17 Sayı: 3, 163 - 169, 24.09.2014
https://doi.org/10.5541/ijot.556

Öz

Kaynakça

  • Buonapart-e, EU FP7 project Better Up-scaling and Optimization of Nanoparticle and Nanostructure Production by Means of Electrical Discharges 201220 Available at: <http://www.buonapart-e.eu/> [Accessed 20.12.2012].
  • M. Stein, D. Kiesler, F.E. Kruis, Effect of carrier gas 20 40 60 80 100 Particle diameter D (nm) 50000 20 40 60 80 100 Ex er gy lo ss m elt v s. so lid ific at io n (J /k g) Particle diameter D (nm)
Toplam 2 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Bölüm Invited ECOS Papers
Yazarlar

Ron Zevenhoven

Asfaw Beyene

Yayımlanma Tarihi 24 Eylül 2014
Yayımlandığı Sayı Yıl 2014 Cilt: 17 Sayı: 3

Kaynak Göster

APA Zevenhoven, R., & Beyene, A. (2014). Exergy of Nano-Particulate Materials. International Journal of Thermodynamics, 17(3), 163-169. https://doi.org/10.5541/ijot.556
AMA Zevenhoven R, Beyene A. Exergy of Nano-Particulate Materials. International Journal of Thermodynamics. Eylül 2014;17(3):163-169. doi:10.5541/ijot.556
Chicago Zevenhoven, Ron, ve Asfaw Beyene. “Exergy of Nano-Particulate Materials”. International Journal of Thermodynamics 17, sy. 3 (Eylül 2014): 163-69. https://doi.org/10.5541/ijot.556.
EndNote Zevenhoven R, Beyene A (01 Eylül 2014) Exergy of Nano-Particulate Materials. International Journal of Thermodynamics 17 3 163–169.
IEEE R. Zevenhoven ve A. Beyene, “Exergy of Nano-Particulate Materials”, International Journal of Thermodynamics, c. 17, sy. 3, ss. 163–169, 2014, doi: 10.5541/ijot.556.
ISNAD Zevenhoven, Ron - Beyene, Asfaw. “Exergy of Nano-Particulate Materials”. International Journal of Thermodynamics 17/3 (Eylül 2014), 163-169. https://doi.org/10.5541/ijot.556.
JAMA Zevenhoven R, Beyene A. Exergy of Nano-Particulate Materials. International Journal of Thermodynamics. 2014;17:163–169.
MLA Zevenhoven, Ron ve Asfaw Beyene. “Exergy of Nano-Particulate Materials”. International Journal of Thermodynamics, c. 17, sy. 3, 2014, ss. 163-9, doi:10.5541/ijot.556.
Vancouver Zevenhoven R, Beyene A. Exergy of Nano-Particulate Materials. International Journal of Thermodynamics. 2014;17(3):163-9.