DESIGN PARAMETERS OF A CENTRIFUGAL FAN FOR A 200KG CRUCIBLE FURNACE

¹Musa Dalil Bello ²Abubakar Jibrin Abdullahi, ³Igbax Saanyol Ityokumbul

¹Department of Works, Tudun Wada main Campus, Federal Polytechnic,

^2&3Department of Mechanical Engineering, College of Engineering, Federal Polytechnic, Kaduna.

E-Mail:abdrauf35@yahoo.com

ABSTRACT

Centrifugal blowers are applicable in furnaces such as crucible, Rotary and cupola furnace, the efficiency of these furnaces depend on the blast rate and air delivery from a well design blower. This paper discuss the design of a centrifugal blower for a crucible furnace which will give the required manometric efficiency that will aid adequate combustion as   required.  The blower was designed to convert ‘driver’ energy to kinetic energy in the fluid by accelerating it to the outer rim of the revolving device known as the impeller. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips. The amount of energy given to the fluid corresponds to  the velocity at the edge or vane tip of the impeller.

Keywords: Impeller, Blower, Manometric efficiency, crucible furnace