DETERMINATION OF THE HEAT DISTRIBUTION IN THE RAW COTTON PACKED IN THE COIL

Rahib Aqaqul Sailov, Fazil Ali Veliev, Qusni Kadir Kerimov

Abstract


As a result of experimental studies, a special mathematical model of raw cotton is developed. The effect of density change on the thermal conductivity coefficient is determined. A nonlinear differential equation of heat propagation in coils is obtained. The dependence of the density of raw cotton on the coil height is determined experimentally. The heat flux is intense propagating from denser layers of raw cotton to less dense ones. In a saturated form, the effect of density changes on the propagation of heat is less than in the coils. Pocket spontaneous heating occurs locally with sharp boundaries.

An expression is found, which is the general solution of the mathematical model of heat propagation in raw cotton in coils, on the basis of which a number of physical real models can be constructed.

The model allows to preliminarily give an estimation of the likely picture of the temperature field in the given microvolumes of raw cotton.

Keywords


raw cotton; spontaneous heating; oil content; thermal conductivity coefficient; mathematical model of heat propagation; temperature field

Full Text:

PDF

References


Issledovanie voprosov i razrabotka obespechenija sohrannosti kachestva hlopka-syrca pri skladirovanii i hranenii (otchet po hozdogovornoj teme). (2009). Tashkent: TITLP, 86.

Klenareva L. A. (2010). Pervichnaja obrabotka hlopka. Available at: http://t-stile.info/pervichnaya-obrabotka-xlopka/

Sushka hlopka-syrca. Available at: http://www.activestudy.info/sushka-xlopka-syrca/

Ustanovlenie dopustimogo procenta vlazhnosti hlopka-syrca pri ego normirovanii i hranenii. (2010). Otchet NIIH proma, 16.

Budanov, G. G. (2008). Mashiny dlja sushki hlopka-syrca i semjan hlopchatnika. Tashkent, 247.

Izuchenija prochnosti i vlazhnosti volokna pri hranenii hlopka-syrca v buntah. (2012). Tashkent: Otchet NIIH proma.

Transactions of the ASAE. (2005). doi: 10.13031/issn.0001-2351

The Cotton gin and mill press. Available at: http://www.worldcat.org/title/cotton-gin-and-oil-mill-press/oclc/5577612

Vlijanie samosogrevanija pri hranenii hlopka-syrca na ego prjadil'nye svojstva. Bjuleten' NITI, 9.

Nazyev, Zh. M. (2013). Teplotehnika. Baku, 368.

Lykov, A. V. (1968). Teorija sushki. Moscow: Jenergija, 465.

Sailov, R. A. (2008). Izuchenija teplofizicheskih svojstv hlopka-syrca s povyshennoj vlazhnosti pered hraneniem. Azerbajdzhanskij Tehnicheskij Universitet. Nauchnye trudy, 2, 90–92.

Sailov R. A. (2015). «Opredelenie granicy ob#ema istochnika tepla pri samosogrevanie hlopka-syrca v bunte». Estestvennye i tehnicheskie nauki, 2, 122–126.

Sailov, R. A., Veliev, F. A. (2015). Teoreticheskie polozhenija processov vozduhopronicaemosti hlopka-syrca. Teoreticheskaja i prikladnaja mehanika, 2, 124–128.




DOI: http://dx.doi.org/10.21303/2461-4262.2017.00359

Refbacks

  • There are currently no refbacks.


Bookmark and Share


Copyright (c) 2017 Rahib Aqaqul Sailov, Fazil Ali Veliev, Qusni Kadir Kerimov

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN 2461-4262 (Online), ISSN 2461-4254 (Print)