Why open gas-heating? [28.07.2002]
Testing a new type of SARNES RS-40 gas burners at our furnace lab. Their design and layout have been continually developed over the last few years and are the benchmark of what is technically possible in relation to temperature profile and cost effectiveness. The basic advantages over radiant-tube burners are: a. PM dimensional accuracy - uniformity of the temperature distribution! In contrast to radiant-tube burners the heat is transferred to the muffles through a radiant gas layer surrounding the muffle. The radiant gas components CO2 and H2O transfer the heat during this corresponding to the thickness of the gas layer very uniformly to the muffle and material to be sintered. Thanks to well thought-out gas conducting, the swirl burners feed the necessary energy to this radiant gas layer. In contrast to electric heating and radiant-tube burners they transfer the energy not as discrete radiant points but as described above as a homogenous radiant layer of the waste gas components CO2 und H2O. This explains why only 6-10 RS-swirl burners are required for heating a sintering belt furnace with a throughput of parts of 19 tonnes/day. Radiating pipe constructions with 20 gas radiant-tube burners do not achieve the same homogeneity of temperature distribution! **
© 2002 Sarnes Ingenieure OHG
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