Mathematical Modeling of Solar Tunnel Dryer for Ginger Drying

IF 1.204 Q3 Energy Applied Solar Energy Pub Date : 2024-01-16 DOI:10.3103/S0003701X23600947
Assefa Tesfaye Hailu
{"title":"Mathematical Modeling of Solar Tunnel Dryer for Ginger Drying","authors":"Assefa Tesfaye Hailu","doi":"10.3103/S0003701X23600947","DOIUrl":null,"url":null,"abstract":"<p>The drying of fruits, vegetables, ginger, tea, coffee, fish flesh, and herbs can be accomplished with a solar tunnel dryer. It was mathematically modeled for drying ginger products. The solar tunnel dryer comprises of a transparent UV-stabilized plastic-coated chamber and a flat plate solar collector covered in glass. An exhaust fan with solar photovoltaic modules is provided to evacuate the moist air from the dryer. The designed dryer has length, and width area of 8.5, 2 m, and 11 m<sup>2</sup>, respectively. The average daily efficiency of the solar collector over eight hours was about 32%. The dryer can dry 50 kg of ginger per batch. The ginger has a starting moisture content of 90.4% (w.b) and the ultimate moisture level is about 11.8% (w.b). Ginger was selected because it is a major agricultural commodity in Ethiopia, where it is utilized both fresh and dried forms. The dried ginger is utilized for commercial applications. It is used as a local medication and as a flavoring spice in most families. It is quite important in the country’s traditional eating patterns. The ginger was sliced into average length of 9.5 cm, thickness of 1.5–2 mm, and a weight of 7.5–9.2 g pieces. The design improved the Cost of fuel and electricity saved per season. A non-linear regression analysis was used to develop drying models for ginger. The models were compared using the correlation coefficient (<i>R</i><sup>2</sup>), the residual sum square (RSS), and standard error of estimates (SEE) analysis to determine the one that best represented the thin layer drying characteristics of ginger. The results show that the Page model satisfactorily described the drying of ginger with <i>R</i><sup>2</sup> of 0.995, the Standard error of estimate (SEE) is 0.003 and the residual sum square (RSS) is also 0.006. The drying time of the dryer is 3.33 days. The overall efficiency of the dryer is about 36%.</p>","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":null,"pages":null},"PeriodicalIF":1.2040,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Solar Energy","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.3103/S0003701X23600947","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Energy","Score":null,"Total":0}
引用次数: 0

Abstract

The drying of fruits, vegetables, ginger, tea, coffee, fish flesh, and herbs can be accomplished with a solar tunnel dryer. It was mathematically modeled for drying ginger products. The solar tunnel dryer comprises of a transparent UV-stabilized plastic-coated chamber and a flat plate solar collector covered in glass. An exhaust fan with solar photovoltaic modules is provided to evacuate the moist air from the dryer. The designed dryer has length, and width area of 8.5, 2 m, and 11 m2, respectively. The average daily efficiency of the solar collector over eight hours was about 32%. The dryer can dry 50 kg of ginger per batch. The ginger has a starting moisture content of 90.4% (w.b) and the ultimate moisture level is about 11.8% (w.b). Ginger was selected because it is a major agricultural commodity in Ethiopia, where it is utilized both fresh and dried forms. The dried ginger is utilized for commercial applications. It is used as a local medication and as a flavoring spice in most families. It is quite important in the country’s traditional eating patterns. The ginger was sliced into average length of 9.5 cm, thickness of 1.5–2 mm, and a weight of 7.5–9.2 g pieces. The design improved the Cost of fuel and electricity saved per season. A non-linear regression analysis was used to develop drying models for ginger. The models were compared using the correlation coefficient (R2), the residual sum square (RSS), and standard error of estimates (SEE) analysis to determine the one that best represented the thin layer drying characteristics of ginger. The results show that the Page model satisfactorily described the drying of ginger with R2 of 0.995, the Standard error of estimate (SEE) is 0.003 and the residual sum square (RSS) is also 0.006. The drying time of the dryer is 3.33 days. The overall efficiency of the dryer is about 36%.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
用于生姜干燥的太阳能隧道式干燥机的数学建模
摘要 利用太阳能隧道干燥机可实现水果、蔬菜、生姜、茶叶、咖啡、鱼肉和草药的干燥。针对生姜产品的干燥对其进行了数学建模。太阳能隧道干燥器由一个透明的紫外线稳定塑料涂层室和一个玻璃覆盖的平板太阳能集热器组成。配有太阳能光伏组件的排气扇可将潮湿空气排出干燥器。设计的干燥器长宽面积分别为 8.5 米、2 米和 11 平方米。太阳能集热器 8 小时的日平均效率约为 32%。烘干机每批可烘干 50 公斤生姜。生姜的起始含水量为 90.4%(湿重),最终含水量约为 11.8%(湿重)。之所以选择生姜,是因为生姜是埃塞俄比亚的主要农产品,新鲜和干制生姜均可使用。干姜用于商业用途。在大多数家庭中,生姜被用作当地的药物和调味香料。它在该国的传统饮食模式中占有相当重要的地位。姜片平均长度为 9.5 厘米,厚度为 1.5-2 毫米,重量为 7.5-9.2 克。该设计提高了每季节省的燃料和电力成本。采用非线性回归分析来建立生姜干燥模型。使用相关系数 (R2)、残差平方和 (RSS) 和估计标准误差 (SEE) 分析对模型进行比较,以确定最能代表生姜薄层干燥特性的模型。结果表明,佩奇模型对生姜干燥的描述令人满意,R2 为 0.995,估计标准误差(SEE)为 0.003,残差和平方(RSS)也为 0.006。干燥机的干燥时间为 3.33 天。烘干机的总体效率约为 36%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Applied Solar Energy
Applied Solar Energy Energy-Renewable Energy, Sustainability and the Environment
CiteScore
2.50
自引率
0.00%
发文量
0
期刊介绍: Applied Solar Energy  is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.
期刊最新文献
Exploring Energy Performance of Taraxacum Leaves Undergoing Hybrid Forced Convection Solar Dryer Solar Water Heating Systems Performance with Different Enhancement Techniques: A Detailed Review Analysis of Dye-Sensitized Solar Cells Based on ZnO and ZnO–Ni Photoanodes with Various Ni Concentrations Experimental Investigation of a Parabolic Solar Trough Collector with Titanium-Coated Receiver to Heat Water in a Tank for Domestic Uses Plasma Vacuum-Arc Treatment Technology for the Metal Pipe Surfaces of Solar Thermal Power Plants
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1