Energy and exergy analyses in drying process of porous media using hot air

被引：78

作者：

Prommas, Ratthasak ^{[1
]}

Rattanadecho, Phadungsak ^{[1
]}

Cholaseuk, Dulyachot ^{[1
]}

机构：

[1] Thammasat Univ, Fac Engn, Dept Mech Engn, Res Ctr Microwave Utilizat Engn RCME, Pathum Thani 12120, Thailand

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2010年 / 37卷 / 04期

关键词：

Energy; Exergy; Drying porous medium; Capillary pressure; DRYER;

D O I：

10.1016/j.icheatmasstransfer.2009.12.006

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper the energy and exergy analyses in drying process of porous media using hot air was investigated. Drying experiments were conducted to find the effects of particle size and thermodynamics conditions on energy and exergy profiles. An energy analyses was performed to estimate the energy utilization by applying the first law of thermodynamics. An exergy analyses was performed to determine the exergy inlet, exergy outlet, exergy losses and efficiency during the drying process by applying the second law of thermodynamics. The results show that energy utilization ratio (EUR) and exergy efficiency depend on the particle size as well as hydrodynamic properties. Furthermore, the results of energy and exergy presented here can be applied to other porous drying processes which concern effect of porosity as well as grain size. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：372 / 378

页数：7

共 18 条

[1] Ahern J.E., 1980, EXERGY METHOD ENERGY
[2] The first and second law analyses of thermodynamic of pumpkin drying process
Akpinar, EK
Midilli, A
Bicer, Y
[J]. JOURNAL OF FOOD ENGINEERING, 2006, 72 (04) : 320 - 331
[3] Energy and exergy of potato drying process via cyclone type dryer
Akpinar, EK
Midilli, A
Bicer, Y
[J]. ENERGY CONVERSION AND MANAGEMENT, 2005, 46 (15-16) : 2530 - 2552
[4] Energy and exergy analyses of drying of red pepper slices in a convective type dryer
Akpinar, EK
[J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2004, 31 (08) : 1165 - 1176
[5] Bejan A., 1998, ADV ENG THERMODYNAMI
[6] Energy and exergy analysis of timber dryer assisted heat pump
Ceylan, Ilhan
Aktas, Mustafa
Dogan, Hikmet
[J]. APPLIED THERMAL ENGINEERING, 2007, 27 (01) : 216 - 222
[7] Performance analysis of drying of green olive in a tray dryer
Colak, Neslihan
Hepbasli, Arif
[J]. JOURNAL OF FOOD ENGINEERING, 2007, 80 (04) : 1188 - 1193
[8] A new model for thermodynamic analysis of a drying process
Dincer, I
Sahin, AZ
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2004, 47 (04) : 645 - 652
[9] DRYING BEHAVIOR OF SPHERICAL GRAINS
DUTTA, SK
NEMA, VK
BHARDWAJ, RK
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1988, 31 (04) : 855 - 861
[10] Understanding energy and exergy efficiencies for improved energy management in power plants
Kanoglu, Mehmet
Dincer, Ibrahim
Rosen, Marc A.
[J]. ENERGY POLICY, 2007, 35 (07) : 3967 - 3978

← 1 2 →