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Exergy concept and its implementation in the recycling of metals

Eksergijski koncept i njegova primena u recikliranju metala

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2017
0351-94651701100M.pdf (388.6Kb)
Authors
Marković, Branislav
Sokić, Miroslav
Ilić, Ilija
Manojlović, Vaso
Gulišija, Zvonko
Živković, Dragana
Štrbac, Nada
Article (Published version)
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Abstract
Modern industrial product design implies presence of many different materials. Consequently, in the recycling process, shredding and separation procedures are applied. However, all materials cannot be completely separated; therefore, there is a contamination in the recycling streams. The quality of the materials streams can be reduced in each of the following recycling steps. These qualitative losses cannot be described by material balance. This paper presents the concept of exergy as a measure of quality losses, and gives the methods for the calculation of the exergy content and the exergy loss. Losses attributed to the recycling or material losses, material contamination losses and dilution requirements can be used as indicators for the materials quality loss as well as for the resource efficiency in the production systems. In this paper, the example of calculations on the steel scrap is presented.
Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu.
Keywords:
exergy concept / recycling / contamination / quality losses / eksergijski koncept / reciklaža / kontaminacija / kvalitativni gubici
Source:
Zaštita materijala, 2017, 58, 1, 100-103
Publisher:
  • Engineering Society for Corrosion, Belgrade, Serbia
Funding / projects:
  • Developing technological processes for nonstandard copper concentrates processing with the aim to decrease pollutants emission (RS-34023)
  • The development of casting technologies under the influence of electromagnetic field and technologies of hot plastic forming of 7000 series aluminium alloys for special purposes (RS-34002)

DOI: 10.5937/ZasMat1701100M

ISSN: 0351-9465

[ Google Scholar ]
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3528
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Marković, Branislav
AU  - Sokić, Miroslav
AU  - Ilić, Ilija
AU  - Manojlović, Vaso
AU  - Gulišija, Zvonko
AU  - Živković, Dragana
AU  - Štrbac, Nada
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3528
AB  - Modern industrial product design implies presence of many different materials. Consequently, in the recycling process, shredding and separation procedures are applied. However, all materials cannot be completely separated; therefore, there is a contamination in the recycling streams. The quality of the materials streams can be reduced in each of the following recycling steps. These qualitative losses cannot be described by material balance. This paper presents the concept of exergy as a measure of quality losses, and gives the methods for the calculation of the exergy content and the exergy loss. Losses attributed to the recycling or material losses, material contamination losses and dilution requirements can be used as indicators for the materials quality loss as well as for the resource efficiency in the production systems. In this paper, the example of calculations on the steel scrap is presented.
AB  - Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Exergy concept and its implementation in the recycling of metals
T1  - Eksergijski koncept i njegova primena u recikliranju metala
EP  - 103
IS  - 1
SP  - 100
VL  - 58
DO  - 10.5937/ZasMat1701100M
ER  - 
@article{
author = "Marković, Branislav and Sokić, Miroslav and Ilić, Ilija and Manojlović, Vaso and Gulišija, Zvonko and Živković, Dragana and Štrbac, Nada",
year = "2017",
abstract = "Modern industrial product design implies presence of many different materials. Consequently, in the recycling process, shredding and separation procedures are applied. However, all materials cannot be completely separated; therefore, there is a contamination in the recycling streams. The quality of the materials streams can be reduced in each of the following recycling steps. These qualitative losses cannot be described by material balance. This paper presents the concept of exergy as a measure of quality losses, and gives the methods for the calculation of the exergy content and the exergy loss. Losses attributed to the recycling or material losses, material contamination losses and dilution requirements can be used as indicators for the materials quality loss as well as for the resource efficiency in the production systems. In this paper, the example of calculations on the steel scrap is presented., Dizajn modernih industrijskih proizvoda je takav da oni predstavljaju kompleksne spojeve različitih materijala. Zbog toga se u postupku reciklaže materijala primenjuju procesi usitnjavanja i razdvajanja. Međutim materijali se ne mogu u potpunosti razdvojiti i zbog toga dolazi do kontaminacija u reciklažnim tokovima. Zbog toga se kvalitet materijala može smanjivati u svakom narednom reciklažnom koraku. Ovakvi kvalitativni gubici ne mogu se opisati masenim bilansom, i u radu je prikazan eksergijski koncept kao merilo gubitaka kvaliteta, odnosno dat je metod za izračunavanje eksergijskog sadržaja i eksergijskog gubitka. Gubici pripisani reciklaži ili tačnije materijalni gubici, gubici usled kontaminacije drugim metalima i posledično potreba za razblaživanjem, mogu se koristiti kao indikatori gubitka kvaliteta materijala i efikasnosti korišćenja resursa u proizvodnim sistemima. U radu je dat primer proračuna na čeličnom otpadu.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Exergy concept and its implementation in the recycling of metals, Eksergijski koncept i njegova primena u recikliranju metala",
pages = "103-100",
number = "1",
volume = "58",
doi = "10.5937/ZasMat1701100M"
}
Marković, B., Sokić, M., Ilić, I., Manojlović, V., Gulišija, Z., Živković, D.,& Štrbac, N.. (2017). Exergy concept and its implementation in the recycling of metals. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 58(1), 100-103.
https://doi.org/10.5937/ZasMat1701100M
Marković B, Sokić M, Ilić I, Manojlović V, Gulišija Z, Živković D, Štrbac N. Exergy concept and its implementation in the recycling of metals. in Zaštita materijala. 2017;58(1):100-103.
doi:10.5937/ZasMat1701100M .
Marković, Branislav, Sokić, Miroslav, Ilić, Ilija, Manojlović, Vaso, Gulišija, Zvonko, Živković, Dragana, Štrbac, Nada, "Exergy concept and its implementation in the recycling of metals" in Zaštita materijala, 58, no. 1 (2017):100-103,
https://doi.org/10.5937/ZasMat1701100M . .

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