Dynamic Modeling and a Parametric Study of an Indirect Solar Cabinet Dryer

被引:24
作者
Sami, Samaneh [2 ]
Rahimi, Amir [1 ]
Etesami, Nasrin [2 ]
机构
[1] Univ Isfahan, Fac Engn, Dept Chem Engn, Esfahan, Iran
[2] Isfahan Univ Technol, Dept Chem Engn, Esfahan, Iran
关键词
Efficiency; Mathematical modeling; Solar cabinet dryer; Solar energy; Thermal storage; OPEN SUN; DRYING CHARACTERISTICS; PERFORMANCE ANALYSIS; TUNNEL DRYER; LAYER; DRIER; QUALITY; STORAGE; DESIGN; SLICES;
D O I
10.1080/07373937.2010.545159
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A dynamic mathematical model for drying of agricultural products in an indirect cabinet solar dryer is presented. This model describes the heat and mass transfer in the drying chamber and also considers the heat transfer and temperature distribution in a solar collector under transient conditions. For this purpose, using conservation laws of heat and mass transfer and considering the physical phenomena occurring in a solar dryer, the governing equations are derived and solved numerically. The model solution provides an effective tool to study the variation of temperature and humidity of the drying air, drying material temperature, and its moisture content on each tray. The predicted results are compared with available experimental data. It is shown that the model can predict the performance of the cabinet solar dryer in unsteady-state operating conditions well. Furthermore, the effect of some operating parameters on the performance and efficiency of dryer is investigated and compared with selected published data.
引用
收藏
页码:825 / 835
页数:11
相关论文
共 38 条
[31]   Experimental studies on hemi cylindrical walk-in type solar tunnel dryer for grape drying [J].
Rathore N.S. ;
Panwar N.L. .
Applied Solar Energy, 2009, 45 (4) :269-273
[32]   Solar drying of foods: Modeling and numerical simulation [J].
Ratti, C ;
Mujumdar, AS .
SOLAR ENERGY, 1997, 60 (3-4) :151-157
[33]   Analysis of Energy and Environmental Parameters during Solar Cabinet Drying of Apple and Carrot [J].
Romano, G. ;
Kocsis, L. ;
Farkas, I. .
DRYING TECHNOLOGY, 2009, 27 (04) :574-579
[34]   Experimental investigation of the performance of the solar tunnel dryer for drying aonla pulp [J].
Sevda, M. S. ;
Rathore, N. S. .
INTERNATIONAL JOURNAL OF GLOBAL ENERGY ISSUES, 2009, 31 (02) :183-192
[35]   HEAT-TRANSFER, PRESSURE-DROP AND PERFORMANCE RELATIONSHIPS FOR IN-LINE, STAGGERED, AND CONTINUOUS PLATE HEAT-EXCHANGERS [J].
SPARROW, EM ;
LIU, CH .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1979, 22 (12) :1613-1625
[36]   LONG-WAVE RADIATION FROM CLEAR SKIES [J].
SWINBANK, WC .
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 1963, 89 (381) :339-348
[37]   Mathematical modeling of thin layer solar drying of sultana grapes [J].
Yaldiz, O ;
Ertekin, C ;
Uzun, HI .
ENERGY, 2001, 26 (05) :457-465
[38]   Thin layer solar drying of some vegetables [J].
Yaldiz, O ;
Ertekin, C .
DRYING TECHNOLOGY, 2001, 19 (3-4) :583-597