View source for Open Source Portable Forced Induction Thermoelectric Solid Fuel Stove

=Basics=
*It seems the more technical name is:
**[[Forced Induction]] [[Top-Tit Updraft Gasifier]] (With Integrated [[Thermoelectric Generator]] )
*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) )

=Industry Standards=
== [[Biolite]] ==
===Biolite Campstove 1 and 2===
*The backpacking marketed one
*[https://www.bioliteenergy.com/products/campstove-2]

===Biolite Basecamp===
*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
*[https://www.bioliteenergy.com/products/basecamp-pizzadome-bundle]

===Biolite FirePit===
*Uses the fan to make a smokeless fire pit
*DOES NOT have a teg module, and is thus battery powered

==EcoFire Wood Burning Campstove==
*Seems to be a failed kickstarter, for essentially something similar to the biolite firepit, but in the size of the campstove (ie fan + enclosure only)
*[https://www.werd.com/35198/ecofire-wood-burning-campstove/ A Page of "Werd . com" on the device]
*[https://www.ippinka.com/blog/ecofire-portable-fireplace/ A IPPINKA BLOG Post on the device]

==Smokehouse Products "Mini-Moto" ==
*Seems comprable to the BioLite Campstove, short of the Thermoelectric Generator
*It also has an "interchangable burn chambers" allowing for "hot swapping" of fuel (not certain ease of use due to heat of metal cylenders?, a tab to grab with a hook would be nice)
*They also have an intresting "Infared Heater" attachment
*[https://www.smokehouseproducts.com/pages/mimimoto Their Webpage on the Product]
*[https://www.smokehouseproducts.com/products/mimi-moto?variant=3642119421992 Their Sales Page for the Product]
*[https://www.amazon.com/Smokehouse-Products-Mimi-Moto-Stove/dp/B07BYM9SQL/ref=sr_1_665?brr=1&dchild=1&qid=1611875833&rd=1&s=outdoor-recreation&sr=1-665 Amazon Source for the Mini-Moto] (~125USD)

==Misc Small Products==
*The odd 20USD or so stuff you can get from Alibaba / Ali-express, or those odd amazon sellers that don't have a product, and moreso just resell odd stuff
*[https://www.amazon.com/BRS-BRS-116-Outdoor-Multi-functional-Cookware/dp/B01HPZ8JP0 "BRS BRS-116 Outdoor Multi-functional Cooking Camping Wood Burning Stove with Air Blower Outdoor Cookware" ] (Seems to be called the BRS-116 in most reviews, not very complex but does what it says it does and has a few reviews) (~45USD)
*[https://www.amazon.com/Shipping%E3%80%91-High-Efficiency-Smoke-Free-Emergency-Preparation/dp/B08M5K42KF/ref=sr_1_207?brr=1&dchild=1&qid=1611875553&rd=1&s=outdoor-recreation&sr=1-207 "【DHL Shipping】 Portable High-Efficiency Smoke-Free Wood Burning Camping Stove with USB Powered Blower for Survival,Car Camping,Garden BBQ and Emergency Preparation" ] (Looks like a paint can with a centrifugal pc fan attached to the side) 

=Existing Open Source Design=
*Various teg desings (these tend to be of the lesser quality DIY/LIFEHACK type spam etc)

=Minimum Viable Product=
* Models:
**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)

=Basic Design=
==Diagrams==
*[https://drive.google.com/file/d/1jGapZ8YAVfwNCc2S-d9nr9qAVGT0gH8Y/view?usp=sharing A Simplified Diagram] (Doesn't go into detail on the combustion chamber, and fittings between modules)

==Fan Module==
*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?)

==Frame==
*Welded stainless steel? Strong Plastic?

==Hearth==
*Either some sort of metal (most likely stainless steel), or ceramic (would lining with high temp mortar/cement work?)

==Heat Adsorber==
*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

==Piping==
*Low Tech: [[Tin Cans]] / [[Steel Cans]] crudely attached together / [[Brazed]] together?
*Medium Tech: Metal Piping + Screw Fittings (Also can use PVC pipe for low temperature sections via [[PVC Pipe to Metal Pipe Connections]] )
*High Tech: Welded Square Tubing

==Control Module==
*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?)

==Battery Module==
*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

==IO==
*Indicator LEDs
*On/off switch
*Dial for modes?

=BOM=
== [[V-BOM]] ==
*[https://docs.google.com/presentation/d/1OJ1We3bWd4PYLV26uUYKATCtsKpu_aFhlALyRg42oi0/edit?usp=sharing Link to the google doc]

==Fan==
*[https://www.amazon.com/Kingwin-CF-012LB-Efficient-Excellent-Ventilation/dp/B002YFP8BK/ref=sr_1_5?dchild=1&keywords=pc+fan&qid=1611970615&s=electronics&sr=1-5 "Kingwin 120mm Silent Fan for Computer Cases, Mining Rig, CPU Coolers, Computer Cooling Fan, Long Life Bearing, and Provide Excellent Ventilation Black CF-012LB" ] (~4.99 USD per fan)

==Heat Pipe(s)==
*[https://www.amazon.com/Mxfans-Computer-Cooling-Length-Thick/dp/B07FK8GPHL/ref=sr_1_1?dchild=1&keywords=copper+heat+pipe&pd_rd_r=aa005df3-01f6-41ce-a897-1564de2a0602&pd_rd_w=CNquG&pd_rd_wg=Bnwtj&pf_rd_p=9dad86ae-1554-484b-9cc0-f9673b44705e&pf_rd_r=KZJDMB4C7XYKS1DJQP2C&qid=1611970965&sr=8-1 "Mxfans Flat Heat Pipe Computer CPU Cooling 80mm Length 3mm Thick 8mm Width" ] 
**Maximum operating temperature?

==Heatsink==
*[https://www.amazon.com/Binchil-Cooler-Without-Fanless-Heatsink/dp/B08V5DBC6R/ref=sr_1_3?dchild=1&keywords=cpu+heatsink+without+fan&qid=1611969999&s=pc&sr=1-3 "Binchil 12cm CPU Cooler Without Fan 6 Heat Pipe Fanless CPU Heatsink for 775/1150/1155/1156/1366 for All" ] (~31.99 USD per unit)

==TEGs==
*[https://www.tegmart.com/thermoelectric-modules/5w-5v-35m-teg-module "5-WATT TEG MODULE, 5V OUPTUT, 35MM SQUARE" ] (~18.99 USD per chip)
**Max Temp: "Module can operate continuously at 330 °C (626 °F) and intermittently up to 400 °C (752 °F)"

=CAD=
*

=Code=
*Should essentially be a relitively simple thermostat of sorts, along with leds for various data, and the different selectable "modes"

=Internal Links=
*[[Biolite]]
*[[Rocket Stove]]

=External Links=
*[http://edge.rit.edu/content/P10461/public/Home Some form of Government and/or Colledge/University Study Making A Design, and A Generation or two based of of reviews? ]
*[https://www.slideshare.net/bitmaxim/ethos-2015-presentation-advances-in-tlud-and-other-microgasifier-stoves-during-2014 A 2015 Presentation from the 2015 ETHOS	Conference in Seattle-Kirkland,	WA, USA titled "Advances in TLUD and Other Micro-gasifier Stoves During	2014" ]
*[https://www.researchgate.net/publication/325469475_Environmental_Impacts_ER_CO2_of_an_Improved_Multi-Fuel_Gasifier_Forced_Air_Cookstove_in_the_City_of_Kinshasa A 2018 Study Titled "Environmental Impacts (ER CO<sub>2</sub>) of an Improved Multi-Fuel Gasifier Forced Air Cookstove in the City of Kinshasa" ] (It has a design for such a device)
*[https://www.sciencedirect.com/science/article/abs/pii/S0360544218321777 A 2019 Study Titled "Design of energy utilization test for a biomass cook stove: Formulation of an optimum air flow recipe" ] (Will be of use for fan selection, as well as coding for that "thermostat" of sorts)
*[https://steemit.com/engineering/@sonnyboy/rice-husk-gasifier-stove-a-good-replacement-or-alternative-to-lpg-stoves A Steemit Article Titled "RICE HUSK GASIFIER STOVE a good replacement or alternative to LPG Stoves" ] (Probably should make a page for this use case?)
*[https://www.researchgate.net/publication/232874600_Single_Particle_and_Packed_Bed_Combustion_in_Modern_Gasifier_Stoves-Density_Effects A 2011 Study Titled "Single Particle and Packed Bed Combustion in Modern Gasifier Stoves—Density Effects" ] (May be of use somewhat for design, but mainly for "burn time" estimates]

[[Category: Biofuel]] [[Category: Energy]]