Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Water Injection

The Effect of Water Injection and Increasing Humidity of the Combustion Air on the Pollutants Emission from a Continuous Combustion Chamber

Abdul Kadhim M. Hasan; Abdul Sattar Jawad M; Murtadha Shubber Amran

Engineering and Technology Journal, 2015, Volume 33, Issue 9, Pages 2244-2254

The present work represents an investigation for the pollutants emission when adding water to air in a continuous combustion chamber. Direct water injection into the chamber with water/fuel ratio up to 0.8, as well as, humidifying the inlet air with water prior to the chamber by changing humidity between 20 to 100%, has been examined at different equivalence ratio with gas oil fuel. The results with fuel droplet size of 80µm and Φ=0.8, show that when water directly injected, NOx and soot will decrease by 53% and 56.6% respectively. Nevertheless, CO and UHC are to increase by 108% and 84% respectively. On the other hand, when inlet air has humidified, the decrease in NOx and soot will be 17.15% and 17.94% respectively. But, CO and UHC show an increase of 13.5% and 8.47% respectively.