Bottom Lit Updraft Gasifier-Burner with Syngas Tap-Off
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Basics
- This page aims to explore the viability of, then design and development of a Bottom Lit, Updraft Gasifier with varying function as either a Furnace-Boiler, or as a Gasifier for Syngas production depending on demand.
Design Decisions/Principles
Overall
- Bottom Lit was chosen to have the granular fuel (either Wood Chips or a Pellet Fuel / Granular Activated Carbon etc) act as a Packed Bed Filter for the Syngas/Exhaust Gas
- Syngas will either flow into a collection device for use in a Gas Burner Stove, Use in a Gen-Set, Use in Mantle Lamps, or Storage etc, OR flow past this into a combustion area
- Using some amount of this syngas for reaction vessel heating/the gasification reaction via Tuyere injecting etc may not be ruled out per se
- ”Backup Filters” may be worthwhile (akin to a Pre-Motor Filter in a Vacuum Cleaner etc, but for all intensive purposes only Bottom Ash (and the occasional cleanup/maintainance based Economizer Ash ) will be produced
- External Fuel Storage shall be modular
- With both Manual Airlocks/Hatches, and Automated Systems such as Rotary Airlocks / Augers etc being options
- Overall size/dimensions are targeted to be about the size of a (North American market) Refrigerator or Hot Water Heater etc
- Control shall be computerized with redundant sensors + and easily understood lockouts/fault conditions
- IE Ease of Use + Maintenance is desirable above all else
- NOT unclear lockouts/no means of declaring what sensor is broken etc
- Sintered / Slag ash is preferred, but may not be viable at the small scale
- If so, dry ash collection with a well sealed hopper + potentially vacuum based removal (to reduce dust emissions) is preferred to a Wet Ash Hopper system due to the limitations of decentralized industrial wwt
- Explosion Proof may be overkill, but that and/or Intrinsically Safe may be preferable when dealing with Syngas
Materials
- Aluminum / Aluminum Alloy (preferably Hard Anodized ) for non-high temperature, non-high corrosion risk structural parts wherever possible
- Stainless Steel or better for High Temperature/High Corrosion Risk Areas
- Minimal Plastic, but Slow-Biodegradable If Required
- Such as PLA etc
- Lead Free Brass for any pipe fittings etc
- EMT or better based Electrical Routing
- Widespread Grounding + Bonding + EM Noise Shielding
- High Ingress Prevention rating preferably