I have managed to build my pilot project cherry pit gasifier and it is working with the wet pits! - well at least it is producing gas that is burning reliably.
Now I have a couple of questions: 1) My question is regarding the color of the flame. It appears to be blue-ish yellow near the base, but turns yellow near the top. The yellow is not a deep orange color, but rather a bright yellow. There is little to no sooting off the flame and no visible smoke. I have made two different burner designs as I was concerned about proper air introduction into the gas prior to combustion with little to no change Either I am not cracking the tar adequately, or there is a lot of sodium in the pits. Any thoughts? No I do not have a temperature probe in the reaction zone. As I will be burning the gas in a boiler, I am not overly concerned about the gas, but I do not want to have excessive tar buildup if it can be avoided. 2) The gasifier was producing a lot of moisture and tar for the first hour of operation but it's production slow substantially after that. I did quite a bit of tweaking in that hour. 3) Should I be using some coal or char at the base to help improve the cracking? Will the ash left from the first burn be adequate? I'll post a photo/video somewhere once I get the files off the camera. -Derek _______________________________________________ The Gasification list has moved to [email protected] - please update your email contacts to reflect the change. Please visit http://info.bioenergylists.org for more news on the list move. Thank you, Gasification Administrator
