scholarly journals Experimental studies on radiation heat transfer enhancement on a standard muffle furnace

2013 ◽  
Vol 17 (2) ◽  
pp. 591-598
Author(s):  
Alina Minea ◽  
Oronzio Manca

One of the sources of increased industrial energy consumption is the heating equipment, e.g., furnaces. Their domain of use is very wide and due to its abundance of applications it is key equipment in modern civilization. The present experimental investigations are related to reducing energy consumptions and started from the geometry of a classic manufactured furnace. During this experimental study, different cases have been carefully chosen in order to compare and measure the effects of applying different enhancement methods of the radiation heat transfer processes. The main objective work was to evaluate the behavior of a heated enclosure, when different radiant panels were introduced. The experimental investigation showed that their efficiency was influenced by their position inside the heating area. In conclusion, changing the inner geometry by introducing radiant panels inside the heated chamber leads to important time savings in the heating process.

2014 ◽  
Vol 610 ◽  
pp. 1029-1033 ◽  
Author(s):  
Jiin Yuh Jang ◽  
Chien Nan Lin ◽  
Cheng Yuan Lee ◽  
Chao Hua Wang

This paper studies the chemical combustion reaction of coke oven gas coupled with radiation heat transfer in the slab reheating furnace. Three dimensional temperature distributions of the produced gases and slabs in the combustion furnace are investigates numerically. Numerical results reveal that the radiation heat transfer dominates the heating process in the combustion furnace; it is around 95% of total input heating energy. The heating efficiency is examined for the sake of energy saving in the combustion furnace.


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