Abstract

Wood combustion has an important role in a household for cooking and heating purpose. In some countries this type of fuel is still applied among other fuels such as gas and kerosene. In Timor-Leste most household apply eucalyptus firewood for their daily usage. This study was conducted to understand the characteristic of eucalyptus wood combustion in different models of improved cooking stove. Firewood mass of 1.5kg was combusted, the flame and water temperature and time applied during combustion was recorded. The results show that the cooking stove with one and two holes for the secondary air space has a higher temperature and lowest burning time than smokeless cooking stove or without secondary air mixing. The burning time and flame temperature for water temperature reaching at 91 oC was 9 min and 345 oC, 9 min and 378 oC and 36 min and 107 oC respectively.

Keywords:Cooking stove; Eucalyptus firewood; Flame temperature; Water temperature