STUDIES ON THE AIR POLLUTANT EMISSION RATE FROM PORTABLE KEROSENE SPACE HEATERS UNDER THE DECREASED INDOOR OXYGEN CONCENTRATION(PART 2)

Abstract

To estimate the indoor concentration of NOX by the usage of flue-less type combustion appliances, experimental study was carried out in a laboratory where the ventilation rate, consequently oxygen concentration was controlled. The NO generation rate decreased proportionally with the depression of oxygen concentration to a certain point, K_c, beyond which the decrease rate was much less. N0_2 showed the almost constant generation to K_c, beyond which decreased proportional to oxygen concentration. Though we could not determine K_c with radiant type heaters, the decrease of NO_x emission rate was proportional to oxygen and moderate compared to "fan heater"s.