Design and Construction of an Oil Fired Crucible Furnace
Journal Title: International Journal of Research and Review - Year 2018, Vol 5, Issue 2
Abstract
The study carried out a design and construction of an oil-fired crucible furnace. The study focused on ensuring a high efficiency in melting of aluminum, by effectively minimizing heat losses, and maximizing heat generation. To achieve this, a composite refractory material consisting of cement, asbestos, and clay in a ratio of 2:1:1 was used, and diesel fuel was atomized at the rate of 6.31x10-5 m3/min, using an Air compressor of 50kPa, volumetric air flow rate of 2 CFM, and power rating of 1hp. This generated a heat of 42.6 MJ at a working pressure of 0.4122 Mpa. 18.02% of the heat generated was lost due its interaction with the environment. Changes in the furnace geometry were negligible indicating a long service life potential. With a useful heat input of 34.92 MJ, the furnace is able to melt 56 kg of aluminum at a pouring temperature of 720 0C, leaving its efficiency at 81.98%. The design is considered safe since the working pressure does not exceed the working stress of its casing which is made of mild steel.
Authors and Affiliations
Beneth. C. Chukwudi
Keywords
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