Development Of A Spent OilFired 100 Kg Crucible Furnace For Small Scale Foundry Industries

Akim A.Golorunnishola; Ebenezer K. Ojaomo and GbengaL. Onibon

doi:https://doi.org/10.14445/22315381/IJETT-V67I4P221

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Volume 67 | Issue 4 | Year 2019 | Article Id. IJETT-V67I4P221 | DOI : https://doi.org/10.14445/22315381/IJETT-V67I4P221

Development Of A Spent OilFired 100 Kg Crucible Furnace For Small Scale Foundry Industries

Akim A.Golorunnishola, Ebenezer K. Ojaomo and GbengaL. Onibon

Citation :

Akim A.Golorunnishola, Ebenezer K. Ojaomo and GbengaL. Onibon, "Development Of A Spent OilFired 100 Kg Crucible Furnace For Small Scale Foundry Industries," International Journal of Engineering Trends and Technology (IJETT), vol. 67, no. 4, pp. 103-107, 2019. Crossref, https://doi.org/10.14445/22315381/IJETT-V67I4P221

Abstract

A 100 kilogram capacity crucible furnace fired with spent engine oil was developed. The spent engine oil otherwise regarded as waste in Nigeria was converted to heating energyfor the developed crucible furnace. This work was aimed at reducing the cost of melting iron in Nigeria. Bulk of the materials used in the construction were sourced locally from metal scraps. The furnace drum which has an overall capacity of 0.1404m3.was fitted with a chimney to allow the escape of combustion gases. From the design, 0.3 m3/s volume of air supplied to the crucible furnace with an available volumetric capacity of 0.1404 m3 at the rate of 2119.38W/m2 produced an estimated melting heat of 113271.2 KJ/hr with a melting rate of 100 kg/hr. The crucible furnace was designed to use the spent engine oil with a heating energy content of 45948 kJ/kg. The designed operating temperature of the crucible furnace was 1400oc while the experimental temperature of 1280oc was achieved. The experimental efficiency of the crucible furnace was 59.4 % as against the designed efficiency of 63 %. It is thus recommended that this design can be used as a foundation for building better and cheaper crucible furnace for foundry industries in Nigeria.

Keywords

Spent engine oil, crucible furnace,foundry industries, melting heat, rate of heat transfer.

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