| 顾迦毅， 金苏敏.真空管太阳能集热器热风干燥试验研究[J].轻工机械,2018,36(4):25-29 |
| 真空管太阳能集热器热风干燥试验研究 |
| Experimental Study on Hot Air Drying of Vacuum Tube Solar Collector |
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| DOI：10.3969/j.issn.1005 2895.2018.04.005 |
| 中文关键词: 干燥箱 太阳能热风干燥 控制变量法 空气流量 热风温度 |
| 英文关键词:drying oven solar hot air drying control variable method air flow rate hot air temperature |
| 基金项目: |
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| 摘要点击次数: 962 |
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| 中文摘要: |
| 随着对食品干燥的需求变多，干燥过程往往要消耗大量能源，课题组提出把真空管太阳能集热器和干燥箱结合起来，对物料进行热风干燥。设
计一个带有回风系统的干燥箱，采用控制变量法对胡萝卜热风干燥进行试验研究，分析空气流量、热风温度等因素对干燥箱干燥性能的影响。试验表明：空气流
量越大，物料的干燥速率越小；当干燥箱进口的热风温度升高时，物料的热质交换更充分，因此干燥进程得以加快。提出的真空管太阳能集热器热风干燥系统可
以达到节能目的并有效快速地对物料进行干燥。 |
| 英文摘要: |
| With the development of social economy, people′s living standard is increasing day by day, and there is more and more demand for food drying. The
drying process often consumes a lot of energy, so the vacuum tube solar collector and the drying oven were combined to dry the materials. A drying oven with return air system was
designed, using the control variable method for carrot drying experiment, and the influence of air flow rate and hot air temperature on the oven drying performance was analyzed. The
experiment shows that the larger the air flow, the lower the drying rate of materials. When the hot air temperature of the drying box increases, the heat and mass exchange will be more
sufficient, thus the drying process can be accelerated. It can be found that the hot air drying system with vacuum tube solar collector can save energy and effectively dry the materials
quickly. |
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