Drying Efficiency of Betung Bamboo Strips (Dendrocalamus asper) Based on Different Solar Drying Oven Designs

Q2 Engineering

Journal of the Korean wood science and technology Pub Date : 2024-01-01 DOI:10.5658/wood.2024.52.1.1

I. Sumardi, Anggit Kusuma Dewan Daru, Alfi Rumidatul, R. Dungani, Y. Suhaya, Neil Prihanto, Rudi Hartono

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引用次数: 0

Abstract

Betung bamboo ( Dendrocalamus asper ) is used as a building and handicraft material in Indonesia; however, bamboo needs to be dried to increase its stability. This study aimed to evaluate the efficiency of drying bamboo using solar energy and different drying oven designs. The betung bamboo pieces were dried using a direct solar dryer (direct drying) and an indirect solar dryer (indirect drying) and then the decrease in levels that occurred based on the relative humidity (RH) and temperature values achieved in the two dryers were compared. The highest average temperature in the direct indirect drying oven compartment was 60.1 ± 13.1℃ with 19.9 ± 16.4% RH and 60.2 ± 11.9℃ with 19.5 ± 15.5% RH, respectively. The drying defect in indirect drying was lower than that in direct drying, and indirect drying had a 61.7% greater average water loss than direct drying with significant difference (95%, analysis of variance) based on water loss/compartment volume parameters. Thus, the solar drying oven can be used to air-dry bamboo (14%) for 7 d from an initial moisture content of 70%–80% in bamboo strips. The results of this research can be used for small-scale bamboo processing industries that have limited use of electrical energy with quite good results.

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基于不同太阳能干燥炉设计的贝东竹条（Dendrocalamus asper）干燥效率

竹子（Dendrocalamus asper）在印度尼西亚被用作建筑和手工艺品材料，但竹子需要经过干燥才能提高其稳定性。本研究旨在评估利用太阳能和不同烘干炉设计烘干竹子的效率。使用太阳能直接烘干机（直接烘干）和太阳能间接烘干机（间接烘干）对槟榔竹片进行烘干，然后比较了两种烘干机达到的相对湿度（RH）和温度值的降低程度。在直接间接干燥箱中，最高平均温度分别为 60.1 ± 13.1℃（相对湿度为 19.9 ± 16.4%）和 60.2 ± 11.9℃（相对湿度为 19.5 ± 15.5%）。间接干燥的干燥缺陷低于直接干燥，间接干燥的平均失水率比直接干燥高 61.7%，根据失水率/隔室容积参数，差异显著（95%，方差分析）。因此，太阳能干燥箱可用于对初始含水量为 70%-80% 的竹条进行 7 天的风干竹材（14%）。该研究成果可用于电能使用有限的小型竹材加工业，并取得了相当好的效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Korean wood science and technology Materials Science-Materials Science (miscellaneous)

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally. The abbreviated and official title of the journal is ''J. Korean Wood Sci. Technol.''. All submitted manuscripts written in Korean or English are peer-reviewed by more than two reviewers. The title, abstract, acknowledgement, references, and captions of figures and tables should be provided in English for all submitted manuscripts.