| Abstrakt: |
Indonesia has the second-largest oil palm plantation in the world after Malaysia. Palm kernel shells are a byproduct of palm oil production that is often thrown away. Due to oil palm shells' hardness, difficulty, and long lifespan, this biomass waste can be utilized as a replacement for coarse aggregate. The purpose of this research was to establish a procedure for optimizing the physical and thermal qualities of hybrid briquettes made from palm kernel shells, wood sawdust, and coffee grounds blends. A briquette experiment was conducted with different palm kernel shell/wood sawdust/coffee grounds blends ratios of 75/10/5; 60/20/20; 70/10/10; and 65/10/10. A manually-operated hydraulic piston press was employed to make briquettes. The briquettes were put through studies to find out their density, compressive strength, calorific value, burning rate, and water vaporizing capacity. The mixing ratio greatly affected the physical and thermal attributes of palm kernel shell/wood sawdust/coffee grounds blend briquettes. The mixing ratio improved density, calorific value, and vaporizing water capacity while decreasing the burning rate. The 65/10/10 palm kernel shell/wood sawdust/coffee grounds blend B4 briquettes showed increased density (1.119 g.cm−3), calorific value (3719 kcal kg−1), water vaporizing capacity (0.851 L.kg−1), and low burning rate (0.846 kg.h−1). Palm kernel shell/wood sawdust/coffee grounds blend briquettes had better handling properties and are predicted to be an effective biofuel with good physical, fuel, and efficiency. [ABSTRACT FROM AUTHOR] |
