Scholarly record
THEORETICAL EFFECT OF MOULDING SPEED AND PROCESSING TIME ON SAWDUST BRIQUETTES DENSITY
Abstract
The article devotes to development of mathematical model of sawdust briquetting process, establishing relationship between the briquettes density, the moulding speed and pressing effort. The study uses elastic-viscous-plastic Bingham body stress-strain equation as a rheological model of the sawdust being briquetted, the model parameters are non-linear functions of the sawdust density; classical Runge-Kutta method was used for solving the nonlinear differential stress-strain equation. The calculations results show that at a constant moulding pressure, the briquette density varies non-linearly over the processing time. At constant moulding pressure of 50 MPa, the calculated briquettes density reaches 1 g/cm3, at the pressure of 100 MPa the density approaches 1.2 g/cm3, and at the pressure of 150 MPa the density reaches 1.25 g/cm3. Basing on the calculation results, the study obtains approximate equation for estimating the briquette density depending on initial density of the briquette raw material, the moulding pressure and the working body speed, and approximate equation for estimating the required moulding pressure depending on initial and required briquette density, processing time or the moulding speed.
Publication Impact Profile
Publication details
References7
Gomonaj M.V. Proizvodstvo toplivnyh briketov. Drevesnoe syr'e, oborudovanie, tekhnologii, rezhimy raboty (Production of fuel briquettes. Wood raw materials, equipment, technologies, operating modes). Moscow, Russia. 2006. 68 p. (In Russian)
Il'yushenko D.A. Razrabotka tekhnologii proizvodstva briketov iz othodov okorki (Development of technology for production of briquettes from debarking waste) (PhD thesis). Saint-Petersburg, Russia. 2012. 135 p. (In Russian)
Korshak A.V. Obosnovanie tekhnologii proizvodstva drevesnyh briketov na pressovom oborudovanii udarnogo tipa (Substantiation of production technology of wood briquettes with press equipment of impact type) (PhD thesis). Saint-Petersburg, Russia, 2011. 151 p. (In Russian)
Chibirev O.V. Sovershenstvovanie processa briketirovaniya othodov lesopererabotki na gidravlicheskom pressovom oborudovanii (Improving the process of briquetting waste wood processing using hydraulic press equipment) (PhD thesis). Arkhangelsk, Russia. 2018. 121 p. (In Russian)
Modin N.A., Eroshkin A.N. Briketirovanie izmel'chennoj drevesiny i drevesnoj kory (Briquetting of chopped wood and bark). Moscow, Russia. 1971. 112 p. (In Russ.)
Blend D. Teoriya linejnoj vyazko-uprugosti (Theory of linear visco-elasticity). Moscow, Russia, 1965. 200 p. (In Russian)
Shamaev V.A. Modificirovanie drevesiny (Modification of wood). Voronezh, Russia, 2006. 386 p. (In Russian)
Citing literature
Number of times cited according to Crossref: 1
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
