Design and Construction of A 50kg Capacity Furnace

Abstract

The design and development of a 50Kg charcoal fired crucible furnace for melting aluminium and its alloys are presented. Importance of Metal melting furnaces cannot be overemphasized in industrialized and under industrialized countries. A detailed designed analysis was conducted to determine the various component sizes of the crucible furnace so to pave way for its construction. Majority of the materials used for the furnace construction were obtained locally. The blower capacity was determined to be air to ratio of 400:1 and 0.05m³/min. The designed furnace of overall volumetric capacity of 0.57m³ accommodates a crucible pot which had a height and volume of 0.577m and 0.0155m³ respectively. The designed operating temperature of the furnace was 1200^oC and maintained a heat transfer rate of 494.2W/m² across the wall. The designed efficiency of the charcoal fired furnace was 59.35%.

Keywords: Crucible, furnace, Charcoal, Volumetric capacity, Design, Efficiency

DOI: 10.7176/ISDE/12-2-03

Publication date: April 30^th 2021