Mechanical Engineering Department, Sepuluh Nopember Institute of Technology, Surabaya 60111, Indonesia; Research Center for Energy Conversion and Conservation, The National Research and Innovation Agency, South Tangerang 15134, Indonesia.
Firdaus Mahar Tama, South Tangerang 15414, Indonesia.
Bioresour Technol. 2024 Feb;394:130212. doi: 10.1016/j.biortech.2023.130212. Epub 2024 Jan 4.
Calliandra calothyrsus and Gliricidia sepium are developed as wood energy forest plantations in degraded land. They have good survivability, are fast to be harvested, and have good calorific value to be utilized as biomass fuel. This study aims to investigate their combustion characteristics by thermogravimetric analysis and their ash-related issues by combustion experiments in drop tube furnace and ash observation. The results show that G. sepium has a better combustion performance with higher values of ignition index, comprehensive combustion index, and flammability index, while C. calothyrsus shows better ash-related issues with less risk in theoretical slagging prediction, clearer metal surface in the fouling area, and less ash deposit formation. The domination of K, Ca, and S elements in the ash deposits of both biomasses results in several sticky aggregate particles and low-melting minerals. This study provides an in-depth understanding of C. calothyrsus and G. sepium combustion for broader utilization.
金合欢和银合欢被开发为退化土地上的木能源林种植园。它们具有良好的生存能力，收获速度快，且热值高，可作为生物质燃料利用。本研究旨在通过热重分析研究它们的燃烧特性，并通过在滴流管炉中进行燃烧实验和灰分观察研究其灰分相关问题。结果表明，银合欢具有更好的燃烧性能，其着火指数、综合燃烧指数和可燃性指数更高，而金合欢则具有更好的灰分相关问题，理论结渣预测风险较低，污染区域的金属表面更清晰，灰分沉积形成较少。两种生物质灰分中 K、Ca 和 S 元素的主导地位导致了一些粘性团聚颗粒和低熔点矿物的形成。本研究为更广泛地利用金合欢和银合欢提供了对其燃烧特性的深入了解。
