The effect of grain mass variations on drying time by adding a pipe heat exchanger to a fluidized bed dryer

PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019 Pub Date : 2019-12-23 DOI:10.1063/1.5141298

Syahrul, A. Cahyono, M. Mirmanto, H. S. Tira, Sukmawaty, G. Putra

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引用次数: 1

Abstract

Drying is one way of post-harvest handling to extend the shelf life, especially for agricultural crops. In general, post-harvest drying is only done naturally by using heat from solar energy or commonly called conventional drying. In this study, the grain was dried using a fluidized bed dryer. However, the fluidized bed dryer was modified by adding a pipe heat exchanger. The purpose of this study was to find the effect of grain mass and air intake temperatures on drying time. The Indonesian government has carried out SNI provisions for milling the maximum water content in the material which is 14%. In this study, the grain used was the newly harvested grain where the water content was about 20% with a tolerance of ± 1%. The mass variations in this study were 0.4 kg, 0.6 kg and 0.8 kg and the temperature variations applied were 55°C, 60°C, and 65° C. The results showed the highest heat loss occurs at the highest mass because the air velocity is not able to circulate properly.Drying is one way of post-harvest handling to extend the shelf life, especially for agricultural crops. In general, post-harvest drying is only done naturally by using heat from solar energy or commonly called conventional drying. In this study, the grain was dried using a fluidized bed dryer. However, the fluidized bed dryer was modified by adding a pipe heat exchanger. The purpose of this study was to find the effect of grain mass and air intake temperatures on drying time. The Indonesian government has carried out SNI provisions for milling the maximum water content in the material which is 14%. In this study, the grain used was the newly harvested grain where the water content was about 20% with a tolerance of ± 1%. The mass variations in this study were 0.4 kg, 0.6 kg and 0.8 kg and the temperature variations applied were 55°C, 60°C, and 65° C. The results showed the highest heat loss occurs at the highest mass because the air velocity is not able to circulate properly.

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通过在流化床干燥器中加入管式换热器，研究了颗粒质量变化对干燥时间的影响

干燥是收获后处理延长保质期的一种方法，特别是对农作物。一般来说，收获后的干燥只能通过利用太阳能的热量自然完成，或者通常称为常规干燥。在本研究中，使用流化床干燥器对谷物进行干燥。然而，流化床干燥器通过增加管式换热器进行了改进。本研究的目的是找出籽粒质量和进风温度对干燥时间的影响。印尼政府已执行SNI规定，研磨材料中的最大含水量为14%。在本研究中，使用的谷物为新收获的谷物，含水量约为20%，公差为±1%。本研究的质量变化为0.4 kg, 0.6 kg和0.8 kg，应用的温度变化为55°C, 60°C和65°C。结果表明，由于空气速度不能正常流通，最大的热损失发生在最大的质量处。干燥是收获后处理延长保质期的一种方法，特别是对农作物。一般来说，收获后的干燥只能通过利用太阳能的热量自然完成，或者通常称为常规干燥。在本研究中，使用流化床干燥器对谷物进行干燥。然而，流化床干燥器通过增加管式换热器进行了改进。本研究的目的是找出籽粒质量和进风温度对干燥时间的影响。印尼政府已执行SNI规定，研磨材料中的最大含水量为14%。在本研究中，使用的谷物为新收获的谷物，含水量约为20%，公差为±1%。本研究的质量变化为0.4 kg, 0.6 kg和0.8 kg，应用的温度变化为55°C, 60°C和65°C。结果表明，由于空气速度不能正常流通，最大的热损失发生在最大的质量处。

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PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON BIOSCIENCE, BIOTECHNOLOGY, AND BIOMETRICS 2019

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