Use of the Calyx Burner to Determine Combustion Conditions

Abstract

H. ROSTRON HINDLEY¹ has recently directed attention to the limitations of the calyx flame as an indicator of maximum carbon dioxide concentration in products of combustion. His letter seemed to us inconclusive, as the scale of air flow in the accompanying diagram Was arbitrary and hence gave no indication of the magnitude of the possible error in terms of air/gas ratio. There was also no indication of the relation between the peak concentration of carbon dioxide and the theoretical mixture. It cannot be assumed that these two points would coincide under the combustion conditions prevailing in the calyx burner. As we had not previously considered the calyx flame as an indicator of maximum concentration of carbon dioxide, it was thought to be worth while making further tests with this application in mind.