BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI

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116 Vlad Marţian et al În concluzie se poate afirma că bateriile solide de tipul Li-ion necesită o răcire, iar aceasta depinde de puterea extrasă. Pachetul OpenModelica este un mediu de simulare util, care permite crearea şi simularea, în diferite condiţii, a modelelor fizice cu uşurinţă şi cu evitarea erorilor de calcul. În continuare se va încerca dezvoltarea unor modele de răcire mai complicate şi care să reflecte cât mai aproape de adevăr realitatea.
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică „Gheorghe Asachi” din Iaşi Tomul LVIII (LXII), Fasc. 3, 2012 Secţia MATEMATICĂ. MECANICĂ TEORETICĂ. FIZICĂ MODELING ON HEAT TRANSFER DURING MALT DRYING PROCESS BY PETRU CÂRLESCU ∗ , VASILE DOBRE, IOAN ŢENU and RADU ROŞCA “Ion Ionescu de la Brad” University of Agricultural Science and Veterinary Medicine of Iasi, Department of Pedotehnics Received: June 5, 2012 Accepted for publication: 3 July, 2012 Abstract. Development of computers and software made possible CFD (Computational Fluid Dynamics) modeling of heat transfer phenomena in drying of malt. Validation of mathematical model of heat transfer process in a porous medium was achieved by measuring the temperature of the malt in several points in the malt layer. Simultaneously with the temperature profile, obtained by CFD simulation of air velocity profile is obtained in the drying process. Modeling and simulation enables optimization of the drying process by increasing dry product quality and lower power consumption. Key words: numerical simulation, heat transfer, drying process, malt. 1. Introduction Malt drying operation is important in the process of brewing. This process involves high energy consumption and management according to the drying process resulting in the final of malt and beer quality. The malt is produced from barley and drying operations are carried out by following malt bed of warm air flow. Hot air flow through the porous layer malt bottom-up heating products and takes a certain amount of moisture in it and drains with air. The loss of moisture is lost and a significant amount of heat particularly where air is not recovered. Knowing the temperature distribution in the malt bed ∗ Corresponding author: e-mail: pcarlescu@yahoo.com
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BULETINUL INSTITUTULUI POLITEHNIC D
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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI

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