Open Source Portable Forced Induction Thermoelectric Solid Fuel Stove
From Open Source Ecology
- It seems the more technical name is:
- A Portable Stove Using Solid Fuel (Mainly Biomass , Charcoal , Pelletized Fuel
- It uses a fan to force air through the combustion area making the Fuel to Air Ratio better, and thus increasing heat, burnable material, and reducing smoke/carbon monoxide
- Also has a thermoelectric module to allow for self-powering the fan, and/or external usage of the power
- Essentially Device Similar to the "Biolite" stoves
- EXCEPT that it is maintainable, modular, (and perhaps better preforming (don't boast this till we can) )
Biolite Campstove 1 and 2
- The backpacking marketed one
- Marketed for barbecues (the northern usa definition of the event with burgers etc, not the southern usa definition of a type of smoked food...), and was sold in a similar form as a smokeless stove, and low level energy source for underdeveloped areas
- Uses the fan to make a smokeless fire pit
- DOES NOT have a teg module, and is thus battery powered
EcoFire Wood Burning Campstove
Smokehouse Products "Mini-Moto"
Misc Small Products
Existing Open Source Design
- Various teg desings (these tend to be of the lesser quality DIY/LIFEHACK type spam etc)
Minimum Viable Product
- Soup can/standard biolite design size
- Rocket Stove Size
- Log Sized (~3 logs perhaps?)
- ALL MODELS have the TEG (the log sized biolite one DOES NOT, may be an advantage)
- Perhaps devise method of removing ash better?
- Power Unit is modular, so betteries dieing do not "brick" the unit
- Fan mode adjustable from off to power generating minimum, to max heat/burn (perhaps even Solid Fuel Wok level, may be another good market (food enthusiasts) )
- Arduino nano perhaps (as simple control as possible)
- As many TEGs as possible to maximise the electricity generated
- Perhaps use the air inlet/fan as an air heatsink (at least partially) for the TEGs to preheat air, and cool the "cold side"
- Optional ceramic hearth (either ots or even printed with the d3d ceramic printer (Shatter risk, but increased heat retention and tolerance
- Uses the OSE Modular Battery
- Either a usb, or a car style barrel jack for DC output
- User buildable, and maintainable
- Ruggedized (won't rust, can handle some water (can't be submerged, but splashes and rain) , shock protection (may rule out ceramic, but if it's modular...) ) for backpackers etc to be able to ACTUALLY use it
- The modularity may lend itself to backpacking etc too due to being able to "spread out" the weight amongst packs (and not bring what you don't need)
- A Simplified Diagram (Doesn't go into detail on the combustion chamber, and fittings between modules)
- Small, yet powerful bldc motor?
- Needs to have high efficieny low speed capability, and relitivly high flow modes
- CAN drone motors etc do low speed (especially efficiently?)
- Welded stainless steel? Strong Plastic?
- Either some sort of metal (most likely stainless steel), or ceramic (would lining with high temp mortar/cement work?)
- You can just capture heat from the walls, but much of the heat will exit with the Flue Gas
- You could use an "S Shaped Pipe" to capture more of the heat, but in the spirit of leaving the system "open" and having the flames shooting up the top, a prong sticking into the flame/center of the burn area can be used
- This is the approach of the Biolite Campstove 2
- Could also make an add-on for the flame adsorber?
- May be able to use Heat Pipes , but we need to see what their maximum operating temperature is
- If they would burst, simple metal rods can be used
- Arduino nano, or a some other VERY small board of some sort
- WIFI and all that is not needed, and would just take up space and power
- Thermal Probe for hearth, air intake, and both sides of the TEGs (and perhaps ambient?)
- Not really needed, but some may want an integrated battery instead of an external one
- Make it a clip on module that goes over the power output?
- A simple supercapacitor, or nothing would work for most use cases (smooth out the variation, especially if a cheap power unit is used, yet not add mass/space
- Indicator LEDs
- On/off switch
- Dial for modes?
- Should essentially be a relitively simple thermostat of sorts, along with leds for various data, and the different selectable "modes"