Original scientific paper

https://doi.org/10.17559/TV-20230124000265

Characterisation of Coconut Coir Under Compaction: Determination of Pellet Density, Specific Energy and Compression Force

Juan Liu ; School of Civil Engineering, Liaoning Petrochemical University, No. 1, West Dandong Road, Wanghua District, Fushun, Liaoning Province, P.R. China
Yudi Liu ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China
Zhuoyu Yan ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China
Mingze Xu ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China
Zhixu Wang ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China
Dezhi Ren ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China
Xuewei Bai ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China *
Dejun Liu ; Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, Shenyang, Liaoning Province, P.R. China

* Corresponding author.

Abstract

Coconut coir dust has a potential utilization as bio-fuel pellet. The objective of this contribution is to understand the mechanical characterisation of coconut coir under compaction. Four moulds with hole diameter of 6, 12, 20 and 25 mm are adopted in producing coconut coir pellet. Data of unit pellet density, compression force and specific energy are analyzed with specific hole diameter, mould thickness, and ratio of compacted pellet height. It is observed that unit pellet densities are larger than 1,0 g/cm3 for hole diameter range from 6 to 12 mm except the ratio of compacted pellet height 2,5 of hole diameter 6 mm The specific energy required is 11,2 - 13,6 J/g while unit pellet density is compacted to approximate 0,7 g/cm3 the compression force goes increasingly as the plunger is moving ahead, and to the maximal value at the end of stroke in close-end mode, while in open-end mode, the peak compression force presents gradual decreasing, increasing and stable trend as the compression stroke continues over time. The Pearson correlation analysis indicated that the maximum compression force in close-end mode has little influence on the stable compression force in open-end.

Keywords

coconut coir dust; compression force; pellet density; specific energy

Hrčak ID:

320378

URI

https://hrcak.srce.hr/320378

Publication date:

31.8.2024.

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