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1
- #1
ProEDesigner00
Mechanical
- Oct 17, 2003
- 203
Greetings
Please have patience in teaching this old dog a new trick!
Problem: making green sawdust burn with out any electricity One source of information of someone allready doing it check out
With out going into alot of boring detail I was asked to copy an appliance to burn green sawdust. I built 2 of these appliances one on a whim of no investigation, the second copying exactly what was being produced. I confirmed by witnessing the use of this fellows appliance, I have met with this fellow 3 times to discuss why his worked and mine didnt. He is Amish and cannot explain what he has found, and cannot explain why mine wont work. He has produced a couple hundred of these units and has since quit due to pour health.
Now I was given a formula that does not make sense as I look at his design. Formula is: Theoretically 564 kg of air is needed to burn 100kg of sawdust. Taking density of air = 0.9kg/m³. So theoretically about 6.27m³ of air is required for combustion of 1kg of sawdust. Taking 100% extra, practically you need 12.5m³ of air/kg of sawdust.
I know I need to apply this to a ratio of cross sectional openings for the intake and exhaust. and the amount of air gatting through the fluid bed (material)or around it to make this work. I am certain some sort of velocity needs to be applied. Can any one in plan english explain this to me so I can make sure this works? I am certain his cross sections are to small unless velocity is put into place.
Please have patience in teaching this old dog a new trick!
Problem: making green sawdust burn with out any electricity One source of information of someone allready doing it check out
With out going into alot of boring detail I was asked to copy an appliance to burn green sawdust. I built 2 of these appliances one on a whim of no investigation, the second copying exactly what was being produced. I confirmed by witnessing the use of this fellows appliance, I have met with this fellow 3 times to discuss why his worked and mine didnt. He is Amish and cannot explain what he has found, and cannot explain why mine wont work. He has produced a couple hundred of these units and has since quit due to pour health.
Now I was given a formula that does not make sense as I look at his design. Formula is: Theoretically 564 kg of air is needed to burn 100kg of sawdust. Taking density of air = 0.9kg/m³. So theoretically about 6.27m³ of air is required for combustion of 1kg of sawdust. Taking 100% extra, practically you need 12.5m³ of air/kg of sawdust.
I know I need to apply this to a ratio of cross sectional openings for the intake and exhaust. and the amount of air gatting through the fluid bed (material)or around it to make this work. I am certain some sort of velocity needs to be applied. Can any one in plan english explain this to me so I can make sure this works? I am certain his cross sections are to small unless velocity is put into place.
