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Red clover drying coefficient dependences on air velocity at constant drying temperature

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dc.contributor.authorAboltins, A.
dc.contributor.authorTomsu, J.
dc.contributor.authorKic, P.
dc.date.accessioned2018-04-19T11:10:13Z
dc.date.available2018-04-19T11:10:13Z
dc.date.issued2018
dc.descriptionArticleeng
dc.description.abstractThe clover is widely used as feed of animals and preservation of fodder is an important problem. This paper informs about the experimental and theoretical investigations of red clover ( Trifolium pratense ) drying by force d convection. This research is focused on verification of influence of different air velocities on the drying process of red clover in thin layer in mild temperatures (22 °C ) and rather high relative humidity of air (70 % ). The initial moisture content of clover was determined by gravimetric method using the hot air drying in the electric oven. Special device for convection drying with air flow passing through material from the bottom through supporting trays with a sieve (dimensions of mesh 3 x 4 mm) by co nstant temperature was used for drying when the air velocity 0.7 m s - 1 , 1.0 m s - 1 , 1.2 m s - 1 and 2.0 m s - 1 . These results was compared with drying by free convection. Changes of clover samples were determined from the measured values of weight using the gr avimetric method. The function of drying coefficient K(t) is determined (using thin layer theory) and theoretical results are compared with experimental results. Using experimental results were determined relationships between air velocity and parameters i ncluded in function of drying coefficient. This allows theoretically to predict the drying process depending on the air velocity.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2018, vol. 16, no. 2, pp. 313-319eng
dc.identifier.urihttp://hdl.handle.net/10492/3913
dc.identifier.urihttp://dx.doi.org/10.15159/ar.18.093
dc.rights.holderCopyright 2009 by Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, incl. photocopying, electronic recording, or otherwise without the prior written permission from the Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestryeng
dc.subjectclovereng
dc.subjectconservationeng
dc.subjectdrying theoryeng
dc.subjectfoddereng
dc.subjectforced dryingeng
dc.subjectnatural dryingeng
dc.subjectarticleseng
dc.titleRed clover drying coefficient dependences on air velocity at constant drying temperatureeng
dc.typeArticleeng

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2018, Vol. 16, No. 2