Evaluation of a Dual-Chamber Kerosene Heater Combustion Technology

摘要

A kerosene heater equipped with a dual-chamber combustor was procured, tested, and technically evaluated to determine its applicability to natural gas combustion. The kerosene heater was found to have nitric oxide (NO), nitrogen dioxide (NO2), and carbon monoxide (CO) emissions of 0.0)2, 0.006 and 0.02 lb/10 to the 6th power Btu input, respectively, much lower than those of blue-flame natural-gas combustors. A basic study was conducted to understand the interaction between kerosene combustion and the surrounding metal sleeves forming the dual chamber. Combustion characteristics of kerosene and natural gas were compared to formulate potential designs of low-emitting natural gas combustors. Three concepts were developed for low emitting burners: an atmospheric burner to replace the kerosene wick in the dual-chamber; the same concept with a powered vent; and a two-stage system equipped with a powered vent.