Energy and exergy analysis of freeze‐drying of mint leaves,Journal of Food Process Engineering

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Energy and exergy analysis of freeze‐drying of mint leaves
Journal of Food Process Engineering ( IF 2.7 ) Pub Date : 2020-09-11 , DOI: 10.1111/jfpe.13528
Tuğba Kovacı ₁ , Erkan Dikmen ₁ , Arzu Şencan Şahin ₁

Affiliation

In this study, the energy and exergy analysis of the drying process of mint leaves was carried out. Long drying times in freeze‐drying lead to high‐energy consumption. While the energy consumption of the freeze‐dryer was evaluated by the energy analysis, the freezing and drying conditions that allow maximizing the exergy efficiency and minimizing the exergy losses was specified by exergy analysis. The total energy consumption has decreased due to increasing temperature and decreasing pressure; thus, the exergy losses have decreased. The chamber surface temperature which minimizes the exergy losses was 30°C. Decreasing the temperature of the cooling source has increased the exergy losses. Obtained results from this study will ensure insight into the optimization of the drying system.

中文翻译：

薄荷叶冷冻干燥的能量和火用分析

在这项研究中，对薄荷叶干燥过程进行了能量和火用分析。冷冻干燥中较长的干燥时间会导致高能耗。尽管通过能量分析评估了冷冻干燥机的能耗，但通过火用分析确定了允许最大化火用效率和最小化火用损失的冷冻和干燥条件。由于温度升高和压力降低，总能耗降低了；因此，火用损失减少了。使能动损失最小的腔室表面温度为30℃。降低冷却源的温度已经增加了火用损失。这项研究获得的结果将确保深入了解干燥系统的优化。

更新日期：2020-11-09

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