Hybrid solar dryer for sugar‐palm vermicelli drying,Journal of Food Process Engineering

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Hybrid solar dryer for sugar‐palm vermicelli drying
Journal of Food Process Engineering ( IF 2.7 ) Pub Date : 2020-06-23 , DOI: 10.1111/jfpe.13471
Suherman Suherman ₁ , Hadiyanto Hadiyanto ₁ , Evan Eduard Susanto ₁ , Iftitania Ardita Putri Utami ₁ , Tri Ningrum ₁

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Sugar palm is an abundant palm in Indonesia and widely used for various foods, one of which is vermicelli. During vermicelli production, local farmers still implement open‐sun drying, which reduces the quality of vermicelli, requires long periods of time, and cannot be performed during poor weather. Therefore, in this study, a new method of vermicelli drying is introduced using a hybrid solar dryer, which consists of a solar dryer and an additional heater powered by liquefied natural gas. Hybrid solar drying is conducted at 40, 60, 80, and 100°C. With 2 hr of drying time, the final moisture contents of vermicelli dried using hybrid solar dryer have satisfy the standard limit, while the open‐sun drying and natural solar drying do not, indicating that hybrid solar drying is faster and more effective. Vermicelli drying occurs at the falling‐rate period and increasing drying temperature from 40 to 100°C increases dryer efficiency, energy utilization ratio, and exergy efficiency, from 13.02 to 17.02%, from 0.18 to 0.32, and from 67.4 to 83.6%, respectively. Although the overall quality of dried vermicelli is acceptable, increasing drying temperature from 40 to 100°C result in the damaged vermicelli surface as evident from SEM analysis and degradation of vermicelli whiteness value from 87.2 to 82.5.

中文翻译：

混合太阳能干燥机，用于糖棕榈粉条干燥

Indonesia棕榈在印度尼西亚是一种丰富的棕榈，广泛用于各种食品，其中一种是细面条。在生产细面条的过程中，当地农民仍在进行露天晒干，这降低了细面条的质量，需要很长的时间，并且在恶劣的天气下无法进行。因此，在这项研究中，引入了一种使用混合太阳能干燥机的细面条干燥新方法，该混合干燥机包括一个太阳能干燥机和一个由液化天然气驱动的附加加热器。混合太阳能干燥在40、60、80和100°C下进行。经过2小时的干燥时间，使用混合太阳能干燥机干燥的细面条的最终水分含量已达到标准极限，而露天干燥和自然太阳能干燥则没有，这表明混合太阳能干燥更快，更有效。细面条干燥发生在降速时期，干燥温度从40°C升高到100°C，干燥器效率，能量利用率和火用效率分别从13.02％到17.02％，0.18到0.32和67.4到83.6％。。尽管干燥面条的总体质量是可以接受的，但将干燥温度从40°C升高至100°C会导致面条表面受损，这从以下方面可以明显看出：SEM分析和细线白度值从87.2降到82.5。

更新日期：2020-06-23

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