THERMAL SCIENCE
International Scientific Journal
SAVING ENERGY THROUGH IMPROVING CONVECTION IN A MUFFLE FURNACE
ABSTRACT
Incompressible forced convection heat transfer problems normally admit an extremely important simplification: the fluid flow problem can be solved without reference to the temperature distribution in the fluid. Thus, it can first find the velocity distribution and then put it in the energy equation as known information and solve for the temperature distribution. In this paper it is intended to expand the theoretic researches concerning heat processes intensification and their use in industrial practice. In conclusion the fundamental research with concrete technical applications represents a significant contribution to the development of knowledge in domain. By centralizing the experimental results, there can be said that there has been obtained an energetic saving of approximate 20% by using radiant panels. By fitting the experimental data there has been obtained an optimum of the panels' positioning of x = 118.71 mm. In conclusion, changing the working space by introducing some radiant panels inside the furnace leads to important energy savings in the heating process, by increasing the heating rate of charge and by decreasing its residence time in the thermal equipment.
KEYWORDS
PAPER SUBMITTED: 2008-01-30
PAPER REVISED: 2008-04-04
PAPER ACCEPTED: 2008-04-18
THERMAL SCIENCE YEAR
2008, VOLUME
12, ISSUE
Issue 3, PAGES [121 - 125]
- Minea, A. A, Mass and Energy Transfer, Editura Cermi, Iasi, Romania, 2005
- Minea, A. A., Sandu, I. G, Heat Treating Optimization on AlCuMg Aluminum Alloy, Revista de Chimie, 6 (2006), 57, pp. 586-590
- Minea, A. A., Metallurgical Implications of Heat Treating of Aluminum Alloys in Electrical Furnaces, Proceedings, National Conference of Metallurgy and Material Science - ROMAT, Bucharest, 2006, pp. 311-315
- Stoecker, W. F., Design of Thermal Systems, 3rd ed., McGraw-Hill, New York, USA, 1989
- Jaluria, Y., Lombardi, D., Use of Expert Systems in the Design of Thermal Equipment and Processes, Res. Eng. Des., 2 (1991) 4, pp. 239-253