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Show at the same ratio of heating value to heating value required to maintain a stable flame. Combustion and destruction efficiency were measured near the stability limit on both the FSF and FTF. If the scaling criteria developed on the FTF held for the FSF, the measured combustion and destruction efficiency should have been the same. Since the combustion and destruction efficiencies are different, we conclude that results from the FSF can not be scaled to the FTF or commercial flare heads. CONCLUSION This study examined the flame structure, flame stability, and combustion and destruction efficiencies of flames burned on nozzles from 1/16 inch OD tubes (0.042 inch) to 12 inch commercial flare heads. The result showed that nozzles less than 1-1/2 through 2 inches in diameter have longer flame lengths, poorer flame stability, and different combustion efficiency than larger flare heads. We conclude that measurements made on nozzles less than 1-1/2 through 2 inches in diameter will be difficult to extrapolate to determine the structure, stability or emission from commercial flare heads. DISCLAIMER "Although the research described in this article has been funded wholly or in part by the United States Protection Agency, under contract No. 68-02-3661 to Energy and Environmental Research Corp., it has not been subjected to the agency's required peer and policy review and therefore does not necessarily reflect the views of the Agency and no official endorsement should be inferred." 23 |