he Efficiency of Steel Plate Biomass Briquette Stove with Variation of Aluminum Cylinder Diameter

Aluminum has been known with the properties of lightweight and not easily corroded.
It also has good thermal conductivity property. This reason motivates authors to modify
the combustion chamber of the briquette stove with the addition of an aluminum
cylinder to increase the stove performance. This research examines the thermal
efficiency of biomass briquette stove using candlenut charcoal briquettes by providing 5
variations of aluminum cylinder diameter inside the stove combustion chamber shell.
The cylinder diameter varies from 140, 150, 160, 170 and 180 mm to observe the
comparative thermal efficiency and combustion temperature character. The briquette
stove material was made of steel and the cylinder material added inside combustion
chamber was made of Aluminum. The form of briquette used is the shape of a wasp
nest. The results show that aluminum sleeve diameter of the 140 mm with candlenut
shell briquettes has an optimum thermal efficiency of 28.9% with input power and
output power of 0.40 kW, 1.40 kW respectively.