Energy and exergy analysis of the drying of corn grains

被引:54
作者
da Silva, Gisele Mol [1 ,2 ]
Ferreira, Andre Guimaraes [1 ]
Coutinho, Rogerio Morouco [1 ]
Maia, Cristiana Brasil [2 ]
机构
[1] Ctr Fed Educ Tecnol Minas Gerais CEFET MG, Av Amazonas 5253, Belo Horizonte, MG, Brazil
[2] Pontificia Univ Catolica Minas Gerais PUC Minas, Av Dom Jose Gaspar 5253, Belo Horizonte, MG, Brazil
关键词
Solar drying; Energy; Exergy; Corn grains; PERFORMANCE ANALYSIS; SOLAR DRYERS; KINETICS; DESIGN; SYSTEM;
D O I
10.1016/j.renene.2020.10.116
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A mixed cabin solar dryer was designed and tested in Brazil in the spring equinox, for the drying of corn grains. The key advantage of the current design is its ability to work even in locations with no electricity because a photovoltaic module is used to power an electrical heater and fans. The analysis of the drying process was performed based on the first and second laws of thermodynamics. For average solar radi-ation and ambient temperature of 710 W/m(2) and 30 degrees C, respectively, the average thermal efficiency obtained was 21% and the exergy efficiency ranged between 10% and 66%, with an average value of 23%. It was observed that the corn grains reached the desired moisture content of 13% in 8.5 h, while a similar sample subjected to natural sun drying failed to reach this moisture content in 24 h. The PV module was also used to preheat the drying air, allowing an average increase in the airflow temperature of 14 degrees C, reaching a maximum of 27 degrees C. (C) 2020 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1942 / 1950
页数:9
相关论文
共 50 条
[41]   Exergy analysis of microwave drying process [J].
Skoneczna-Luczkow, Joanna ;
Ciesielczyk, Wlodzimierz .
PRZEMYSL CHEMICZNY, 2016, 95 (11) :2183-2185
[42]   Effect of ventilated solar-geothermal drying on 3E (exergy, energy, and economic analysis), and quality attributes of tomato paste [J].
Hadibi, Tarik ;
Boubekri, Abdelghani ;
Mennouche, Djamel ;
Benhamza, Abderrahmane ;
Kumar, Anil ;
Bensaci, Cheyma ;
Xiao, Hong-Wei .
ENERGY, 2022, 243
[43]   Energy and Exergy Analysis of Drying Process of Lemon Verbena Leaves in a Solar Dryer [J].
Moradi, M. ;
Ghasemi, J. ;
Azimi-Nejadian, H. .
JOURNAL OF AGRICULTURAL MACHINERY, 2021, 11 (02)
[44]   Prediction of energy and exergy of mushroom slices drying in hot air impingement dryer by artificial neural network [J].
Liu, Zi-Liang ;
Bai, Jun-Wen ;
Wang, Shu-Xi ;
Meng, Jian-Sheng ;
Wang, Hui ;
Yu, Xian-Long ;
Gao, Zhen-Jiang ;
Xiao, Hong-Wei .
DRYING TECHNOLOGY, 2020, 38 (15) :1959-1970
[45]   Impact of the greenhouse drying modes of two-phase olive pomace on the energy, exergy, economic and environmental (4E) performance indicators [J].
Mellalou, Abderrahman ;
Riad, Walid ;
Bacaoui, Abdelaziz ;
Outzourhit, Abdelkader .
RENEWABLE ENERGY, 2023, 210 :229-250
[46]   Energy and exergy analysis of an aromatics plant [J].
Vilarinho, A. N. ;
Campos, J. B. L. M. ;
Pinho, C. .
CASE STUDIES IN THERMAL ENGINEERING, 2016, 8 :115-127
[47]   Energy, exergy and parametric analysis of a combined cycle power plant [J].
Aliyu, Mansur ;
AlQudaihi, Ahmad B. ;
Said, Syed A. M. ;
Habib, Mohamed A. .
THERMAL SCIENCE AND ENGINEERING PROGRESS, 2020, 15
[48]   Analysis of Energy and Exergy of an Annealing Furnace [J].
Hasanuzzaman, M. ;
Saidur, R. ;
Rahim, N. A. .
MECHANICAL AND AEROSPACE ENGINEERING, PTS 1-7, 2012, 110-116 :2156-+
[49]   ENERGY & EXERGY ANALYSIS OF A PV PANEL WITH PASSIVE COOLING MECHANISM [J].
Panda, Sampurna ;
Panda, Babita ;
Kumar, Rakesh ;
Jena, Chitralekha ;
Nanda, Lipika ;
Pradhan, Arjyadhara .
SURANAREE JOURNAL OF SCIENCE AND TECHNOLOGY, 2023, 30 (06)
[50]   ENERGY AND EXERGY ANALYSIS OF A DOMESTIC REFRIGERATOR: APPROACHING A SUSTAINABLE REFRIGERATOR [J].
Shikalgar, N. D. ;
Sapali, S. N. .
JOURNAL OF THERMAL ENGINEERING, 2019, 5 (05) :469-481