National Repository of Dissertations in Serbia
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   NaRDuS home
  • Универзитет у Новом Саду
  • Технолошки факултет
  • View Item
  •   NaRDuS home
  • Универзитет у Новом Саду
  • Технолошки факултет
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Prilog proučavanju mogućnosti racionalizacije tehnološkog postupka mlevenja pšenice primenom osmovaljne stolice

Study on the possibilities of the rationalization of wheat flour milling processusing the eight-roller mill

Thumbnail
2009
Disertacija.pdf (4.117Mb)
IzvestajKomisije.pdf (4.491Mb)
Author
Fišteš, Aleksandar
Mentor
Tanović, Gavrilo
Committee members
Tanović, Gavrilo
Pajin, Biljana
Mastilović, Jasna
Metadata
Show full item record
Abstract
U radu je proučavana mogućnost racionalizacije tehnološkog postupka mlevenja pšenice primenom osmovaljne stolice u fazi mlevenja griza i osevaka. Na svim ispitivanim prolazištima mlevenja griza i osevaka, pri istom razmaku između valjaka i istoj veličini otvora sejnog tkiva za odsejavanje brašna, ukupan prinos brašna u postupku sa osmovaljnom stolicom manji je nego u klasičnom postupku. Pomenuta razlika varira u zavisnosti od uzorka i prolazišta mlevenja, ali je uvek statistički značajna. Nižim vođenjem valjaka u postupku sa osmovaljnom stolicom, u poređenju sa razmacima između valjaka u klasičnom postupku, u zavisnosti od uzorka i prolazišta mlevenja se smanjuje razlika, dostiže ili prevazilazi prinos brašna u odnosu na klasični postupak. Povećanjem veličine otvora sejnog tkiva za odsejavanje brašna značajno se povećava prinos brašna u postupku sa osmovaljnom stolicom, pri čemu se pri odabiru sejnog tkiva u obzir mora uzeti i veličina svetlog otvora. Odabirom odgovarajuće veličine otv...ora sejnog tkiva može se i prevazići prinos brašna u klasičnom postupku. Niže vođenje valjaka i/ili povećanje veličine otvora sejnog tkiva za odsejavanje brašna, pri primeni osmovaljne stolice, nema za posledicu pogoršanje kvaliteta brašna (po pitanju sadržaja pepela) u odnosu na klasični postupak. Specifični utrošak energije za usitnjavanje po jedinici mase brašna, pri istom vođenju valjaka i istoj veličini otvora sejnog tkiva za odsejavanje brašna, veći je u postupku sa osmovaljnom stolicom nego u klasičnom postupku. Povećanjem izvoda brašna u postupku sa osmovaljnom stolicom, značajno se smanjuje specifični utrošak energije za usitnjavanje. Mogućnost ostvarenja bliskih efekata usitnjavanja u fazi mlevenja griza i osevaka, u klasičnom i postupku sa osmovaljnom stolicom, ukazuje da je za dalju racionalizaciju savremenog tehnološkog postupka mlevenja pšenice neophodno uključivanje osmovaljne stolice.

Rationalization of the wheat flour milling process using the eight-roller mill in the reduction system has been investigated. At the same roll gaps and same sieving conditions, a lower flour yield has been obtained using an eight-roller mill compared to a conventional one. The difference is statistically significant regardless the passage. By decreasing the roll gap in the process with the eight-roller mill, compared to the roll gap in the conventional process, it is possible to decrease the difference, obtain a similar or even exceed the flour release in the conventional system. Increasing the size of the screen aperture for sifting flour, while percent open area of the screen also needs to be observed, results in significant increase of flour yield (in some cases exceeding the flour yield in the conventional system). Adjustments of the roll gap and sieving conditions in the process with the eight-roller mill are not followed by deterioration of flour quality. At the same roll gaps an...d same sieving conditions, energy requirements for grinding are higher in the process with the eight-roller mill compared to a conventional system. With the increase of the flour release in process using the eight-roller mill, these energy requirements can be significantly reduced. The possibility of achieving similar milling results to those obtained in the conventional system, while the investment costs and overall energy requirements are significantly lower, justifies the use of the eight-roller mill in the reduction system of the wheat flour milling process.

Faculty:
Универзитет у Новом Саду, Технолошки факултет
Date:
07-09-2009
Keywords:
Mlevenje pšenice / Wheat flour milling / reduction system / eight-roller mill / processrationalization / mlevenje griza i osevaka / osmovaljna stolica / racionalizacija tehnološkog postupka
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_nardus_10377
URI
https://nardus.mpn.gov.rs/handle/123456789/10377
https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija152455371808117.pdf?controlNumber=(BISIS)71277&fileName=152455371808117.pdf&id=11237&source=NaRDuS&language=sr
https://www.cris.uns.ac.rs/record.jsf?recordId=71277&source=NaRDuS&language=sr
https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije152455370723885.pdf?controlNumber=(BISIS)71277&fileName=152455370723885.pdf&id=11236&source=NaRDuS&language=sr

DSpace software copyright © 2002-2015  DuraSpace
About NaRDus | Contact us

OpenAIRERCUBRODOSTEMPUS
 

 

Browse

All of DSpaceUniversities & FacultiesAuthorsMentorCommittee membersSubjectsThis CollectionAuthorsMentorCommittee membersSubjects

DSpace software copyright © 2002-2015  DuraSpace
About NaRDus | Contact us

OpenAIRERCUBRODOSTEMPUS