具有纳米流体再循环的太阳能收集器用于对流干燥机的原型

IF 2.4 Q3 ENERGY & FUELS
Denis del Sagrario García-Márquez, I. Andrade‐González, A. Chávez-Rodríguez, M. Montero-Cortes, V. S. Farias-Cervantes
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引用次数: 0

摘要

太阳能集热器是一种可以捕获太阳能并将其转化为热能的热装置。这种热量可以用于不同的工业应用,例如,食品干燥是太阳能集热器最有用的应用之一。这项工作的目的是设计和建造一个利用纳米流体对食物进行对流干燥的太阳能集热器。太阳能集热器的尺寸为1平方米乘20厘米,倾角为45°。收集器由9毫米厚的钢化玻璃和一个热交换器组成,纳米流体在热交换器中循环。以菜籽油和Al2O3、CuO的纳米粉末(> ~ 50 nm)以及两者的1:1 (w/w)混合物为基础,设计了纳米流体。热剖面采用差示扫描量热法(DSC)测定。使用Agricos®装置记录太阳能集热器温度。菜籽油和Al2O3、CuO和1:1混合物组成的纳米流体离开集热器的最高温度分别为39.1℃、44℃、54℃和47.1℃,最高效率为65.09%。与单独使用菜籽油相比,使用纳米流体观察到出口空气温度的升高
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prototype of a Solar Collector with the Recirculation of Nanofluids for a Convective Dryer
Solar collectors are thermal devices that can trap solar energy and convert it to heat. This heat can be used for different industrial applications, for example, the drying of food is one of the most useful applications of solar collectors. This work aims to design and build a solar collector using nanofluids for the convective drying of food. The dimensions of the solar collector were 1 m2 by 20 cm with an angle of inclination of 45°. The collector was composed of 9-mm thick tempered glass and a heat exchanger in which the nanofluids circulate. Nanofluids were designed based on canola oil and nanopowders (>50 nm) of Al2O3, CuO, and a 1:1 (w/w) mixture of both. Thermal profiles were determined using differential scanning calorimetry (DSC). The solar collector temperatures were recorded using an Agricos® unit. The maximum temperatures of the air leaving the collector were 39.1°C, 44°C, 54°C, and 47.1°C for canola oil, and the nanofluids composed of Al2O3, CuO, and the 1:1 mixture, respectively, with a maximum efficiency of 65.09%. An increase in the outlet air temperature was observed using the nanofluids compared to canola oil alone
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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