Let me start by saying what a wonderful resource this forum is. I only discovered gasification a few months ago, and after an inadequate amount of reading I purchased Ben Peterson’s book and was gathering materials to begin a build following his schematics; a fairly expensive, involved project. After coming here to hopefully find answers to some questions I had, and reading a good deal more, I’m instead going to begin building one of Gary Gilmore’s Simple Fire units (hopefully this weekend). Most of the parts have arrived; I only have to stop by a supply house to pick up a steel coupling and some valves. However, I had a few questions:
1.) Will stepping down to 3/4" for valves have an appreciable impact on flow?
2.) Additionally, what about stepping down to 3/4" for the nozzle tip? The pdf suggests a 1" nipple, but I’m fairly keen on the alumina oxide TIG tips some fellows have been using to mitigate oxidation and slag buildup.
(Edit) 3.) The plans say to have the inlet 3" from the floor of the vessel. Is that 3" to the center of the inlet, or 3" between the bottom of the inlet and the bottom of the vessel?
For reference, I plan to use this initial build to power a 13hp, 7250w Predator brand generator, at most.