Home           Contact us           FAQs           
     Journal Home     |     Aim & Scope    |    Author(s) Information      |     Editorial Board     |     MSP Download Statistics
2011 (Vol. 3, Issue: 05)
Article Information:

Heat Balance Determination for a Gas-Fired Furnace for Melting Non-Ferrous Metals

O.A. Ighodalo and C.I. Ajuwa
Corresponding Author:  O.A. Ighodalo 

Key words:  Furnace, heat balance, non-ferrous, thermal efficiency, , ,
Vol. 3 , (05): 471-473
Submitted Accepted Published
2011 March, 08 2011 April, 07 2011 May, 25

A heat balance is usually carried out to determine the energy inflow and outflow for a thermal system and thus determine the overall system performance. The heat balance for a gas-fired furnace for melting non-ferrous metals has been determined. 50 kg of Aluminium charge was melted in the furnace and the in-furnace, walls, roof and exhaust gas temperatures were measured. Experimental measurements taken from the furnace operation were fed as input to a MATLAB program which was developed based on heat balance equations. The output from the program show that about 10% of the heat energy is lost through the walls and roof while 64% is lost through the exhaust gas. The thermal efficiency and melting efficiency determined for the furnace are 36.39 and 54.6%, respectively. The low energy loss through the walls and roof is due to use of appropriate wall thickness. The highest energy loss is through the exhaust, hence, the incorporation of a recuperator to make use of exhaust gas waste heat to preheat the combustion air or the metal charge or both, will further enhance furnace efficiency.
Abstract PDF HTML
  Cite this Reference:
O.A. Ighodalo and C.I. Ajuwa, 2011. Heat Balance Determination for a Gas-Fired Furnace for Melting Non-Ferrous Metals.  Research Journal of Applied Sciences, Engineering and Technology, 3(05): 471-473.
    Advertise with us
ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
Submit Manuscript
   Current Information
   Sales & Services
Home  |  Contact us  |  About us  |  Privacy Policy
Copyright © 2015. MAXWELL Scientific Publication Corp., All rights reserved