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3E analysis and mathematical modelling of garlic drying process in a hybrid solar-electric dryer
Renewable Energy ( IF 9.0 ) Pub Date : 2021-02-09 , DOI: 10.1016/j.renene.2021.02.029
Tarik Hadibi , Abdelghani Boubekri , Djamel Mennouche , Abderrahmane Benhamza , Naji Abdenouri

The current study aims to explore the hybrid solar-electric drying (HSED) of garlic cloves, tests were carried out at three different temperatures 50, 60 and 70 °C under natural convection mode and forced convection mode. Drying air velocity of 4.1 and 6.9 m s−1 have been studied experimentally in forced convection mode. Midilli-Kucuk model can be used to predict the drying behaviour of garlic cloves. The energy payback time of the forced convection dryer are 0.62 and 0.32 years and the net CO2 mitigation was 72.61 and 140.81 ton for air velocity of 4.1 and 6.9 m s−1, respectively. The highest exergy efficiency of 89.86% was achieved at 50 °C drying temperature in natural convection, with a range of 69.61–89.86%. The highest environmental impact factor of 40.35 was observed for the lowest exergy efficiency. The proposed HSED in Algeria has a significant payback period of only 0.08 years compared to Morocco with 0.7 years. The effect of air velocity on the total phenol compound and 2-diphenyl-1-picryl hydrazyl (DPPH) was found to be significant, and the highest values were recorded for HSED under natural convection mode. The proposed HSED in Algeria was found to be sustainable both environmentally and economically.



中文翻译:

混合太阳能干燥机中大蒜干燥过程的3E分析和数学建模

当前的研究旨在探索蒜瓣的混合太阳能电干燥(HSED),在自然对流模式和强制对流模式下,分别在50、60和70°C的三种不同温度下进行了测试。已经在强制对流模式下对4.1和6.9 m s -1的干燥空气速度进行了实验研究。Midilli-Kucuk模型可用于预测大蒜的干燥行为。强制对流干燥机的能量回收时间分别为0.62和0.32年,对于空气流速为4.1和6.9 m s -1的净CO 2缓解量为72.61和140.81吨, 分别。在自然对流条件下,在50°C的干燥温度下,最高能效效率为89.86%,范围为69.61–89.86%。观察到最高的环境影响因子40.35,而最低的火用效率。拟议的阿尔及利亚HSED的投资回收期仅为0.08年,而摩洛哥为0.7年。发现风速对总酚化合物和2-二苯基-1-吡咯酰肼(DPPH)的影响是显着的,并且在自然对流模式下记录了最高的HSED值。阿尔及利亚拟议的HSED在环境和经济上都是可持续的。

更新日期:2021-02-19
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