Analysis of Wood Pellet Quality from Calliandra Callothyrsus, Gliricida Sepium, and Sawdust as New and Renewable Energy

Rahayu, Susi and Hilyana, Siti and Suryani, Embun and Sari, Nazmi Herlina and Ali, Muhamad (2020) Analysis of Wood Pellet Quality from Calliandra Callothyrsus, Gliricida Sepium, and Sawdust as New and Renewable Energy. Proceedings International Conference on Science and Technology (ICST), 1. pp. 110-115. ISSN 2722-7375

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Abstract

Abstract Wood pellets are an new and renewable energy sources evolved in several developed countries such as Europe, America and Japan. Raw materials of the pellets can be obtained from various types of biomass, including agricultural waste and various types of wood. The purpose of this study is to analyze the quality of the wood pellet from Calliandra Callothyrsus, Gliricida Sepium, and sawdust waste. The pelleting method is applied in creating the pellet by utilizing a Russian-made pellet machine with a capacity of 500 kg in a day. In this case, the quality of the wood pellets is identified from physical and chemical test results. It is then adjusted to the SNI 8021-2014 c standard quality. Physically, the test variables identified are pellet diameter, pellet length, L/D ratio, moisture content, particle density, bulk density, combustion rate, and calorific value. The results of pellets’ physical analysis demonstrate homogeneous shapes and sizes, and the water content, density, and calorific value that have satisfied the SNI standard. In terms of calorific value, the wood pellet from Calliandra Callothyrsus provides the highest caloric with 4387 cal/g compared to the other sources. It is followed by Gliricida Sepium with 4351 cal/g. Then, Sawdust is the lowest calorie around 4206 cal/g. From the chemical point of view, the quality of the wood pellets is able to be identified due to ash content, levels of flying matter, and the amount of carbon bound based on ASTM D. 5142-02. The basic material type influences the amount of ash content in the wood pellet. The higher the ash content is, the poorer the quality of the pellet is. Meanwhile, The highest ash content is obtained in Gliricida Sepium which is 1.11%. This could be inversely proportional to the proportion of carbon bound. The higher the amount of carbon bound is, the higher the calorific value is. In fact, the better the quality of the wood pellet is. The highest amount of bound carbon was found in wood pellets of Calliandra Callothyrsus, which was 10.83%. Overall, the three types of the wood pellet fulfill the quality of SNI standards. However, the best quality wood pellets are wood pellets made of Calliandra Callothyrsus

Item Type: Article
Keywords (Kata Kunci): Keywords: renewable energy, wood pellet, calorific value
Subjects: Q Science > Q Science (General)
Divisions: Fakultas Pertanian
Depositing User: Dr Sitti Hilyana
Date Deposited: 04 Jan 2023 02:39
Last Modified: 04 Jan 2023 02:39
URI: http://eprints.unram.ac.id/id/eprint/34185

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