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Show The tests were conducted on a fairly regular basis over several months, and we have no reason to suspect any error in our testing or cataloging of data. Although we cannot argue with the results, we are not prepared at this time to draw a final conclusion as to just why the results are what they are. We are continuing our research in this area in an effort to pinpoint the exact reason for the results. Our research will include a complete study of the chemical reactions involved and how they may be affected by the burner design. Figure 14 indicates N0X versus total heat release and heat release per cubic foot of furnace for oil at 1% and 2% excess oxygen, and gas at 1% and 2% excess oxygen. It is quite apparent that furnace size relative to total furnace heat release can have a dramatic effect on the N0X baseline emission. Our data support other data that indicate burner size as critical to N0X development. This, of course, tends to support a direction of "larger quantities of smaller burners" as future design criteria. It further substantiates the need for furnace manufacturers, process designers, burner manufacturers, users, and engineering contractors to better coordinate each application prior to design. Oxides of Sulfur (S0y) The operators of combustion equipment have maintenance as well as environmental needs for reducing S0X, and we, as combustion engineers and burner developers, had to determine the most practical and cost effective way to control 12-34 |
