OBJECTIVES

• build a 'Simple Survival System' (SSS) for 'Carbon negative' WASH and cooking food using 'Appropriate Carbon Removal Technology' (ACRT) (see web page) producing and using 'biochar' for 'Carbon Removal in a Cascade of Uses' (CRCU)
• design principles
  • simple
  • modular
  • scalable units (numbers of units needed and size of units eg. larger units using the same mainframe could be built)
  • durable/rugged eg. High quality steel such as 304 where possible
  • standalone without electronics (with possible add on 'Tubular Thermo Electric Generator' (TTEG) for power bank charging)
  • 'Do It Yourself' (DIY) parts with an angle grinder (burner, wok ring) and basic hand tools where needed (cone)
  • 'Off the shelf' (OTS) parts ideally with stable supply chains eg. Local 4" chimney flue fabrication

What it is...

An independent circular (sub)system for clean water and cooking fuelled by biomass pellets eg. wood, rice husk and more, which convert to biochar pellets during pyrolysis/a burn. No biomass pellets? It will also work with environmental biomass fuel, either placed in the 4" burner for small pieces or for larger pieces, no burner needed - it can be directly burnt inside the bucket.

The SSS is as follows:

Large full water container (dirty)-->pour ~7L into a 'Permafilter 3 bucket' for pre-filtration->full 7.6L stockpot (at the bottom of the filter, with visible water level/visual feedback) ->pasteurize water in the full 7.6L stockpot on a Navigator 'Hormuz' V1 TLUD (see below)->fill up second water container (clean) + use remaining flame to cook food with your favorite cookware 

= safe water, cooked food and biochar!

The Biochar pellets from the stove can be collected and used to replace the Biochar pellets (unmilled + milled) in 'Bucket 2' in the 'Permafilter 3 bucket' as needed..which is still a work in progress on the 'Permafilter Systems' page. The used biochar pellets/powder can be used for:
sanitation eg.1s and 2s (with bokashi)->compost->growing systems->fresh food->cooked on the Navigator 'Hormuz' V1 TLUD stove

TECH SPECS

• 12L SS heavy duty bucket
  • 27cm high, 30cm top diameter

  • '5 in 1'
    - bucket
    - heat shield
    - wind shield
    - quench collector
    - stovetop support

• 2 mild steel blocks (50x125x12, laser cut, leftover from my 'Kon-Tiki 'Rolls' operation) + DIY cone insert (304 2mm x 2mm aperture mesh, can buy it in 200x300 sheets, made from a 200x200 sheet section)
• 4" Navigator burner (10,20,150,160,230)
  • 10/20 primary air slots
  • 150/160 secondary air slots
  • 70 chimney
  • 230 height
  • 10 tertiary air
  • modded wok ring, 35 high
  • total tertiary air: 45
• 28cm stainless heavy duty round grill (nests within top 20mm of bucket) for a stable stovetop
• modded stainless wok ring (18cm top diameter/21cm bottom diameter)
• biomass pellets or environmental fuel options

ACCESSORIES

• 7.6L stainless stockpot (Anko)

• • water pasteurization
    
    • 23cm wide
• 10.25" (25.6cm) cast iron 'Lodge' skillet (got it for half price)
  • frying
• bedourie 10" (25cm)
  • soups, stews, curries
• kadhai 9.5" (23.75cm)
• more...

WATER FILTRATION

• 2 x 5L (modded) food grade PE buckets + grill (from the stove) + stockpot for the 'Permafilter 3 bucket'

OPERATION

•  assemble the plates, cone and burner in the bucket

• fill burner with biomass pellets up to 2cm below secondary air slots
• add firelighter gel on top of pellets
• install grill in place
• light end of skewer (with small dob of gel on end) then light gel on top of pellets (passing skewer through a grill gap)
• wait 5 minutes to start the burn then place cookware on top of grill
• ready to pasteurize or cook!

QUENCH

•  when the flame goes out and smokes, pour water into bucket 3cm high then pour water into the burner (mind the steam). Maybe need a couple of pours to completely stop the smoke

• put on a gardening glove, remove the wok ring and grill
• use a C clamp on the top edge of the burner and lift up, tap on the inside of the bucket to completely remove the Biochar pellets, put aside
• lift up the cone using a tab, tip the biochar pellets into the water then put aside
• stir all the Biochar pellets into the water
• in 10m, pour bucket contents onto a bucket with mesh top
• remove the plates and put aside
• do what you want with the Biochar and the collected water is now 'smoke water' and can be used for promoting seedling growth

Reassemble the stove for the next burn...

• Bucket, 4" Burner (10, 20, 150, 160, 230) + plates/cone insert + grill + wok ring

Burn 1

• 500g (30 burns per 15kg bag, $25 (cost of bag)/30=83cents/burn/day for 1 month), 130 fuel height, 17degsC ambient temperature, 1h16m burn time, 100% Biochar recovery, good flame cap, slightly unstable flame, small amount of smoke at base near the end of the burn

Burn 2

• 500g, 130 fuel height, 18degsC ambient temperature, a bit gusty, 1h27m burn time, 100% Biochar recovery, OK flame cap, slightly unstable flame, smoke at base near the end of the burn (last 5m)

Burn 3

• 500g, 130 fuel height, 18 degsC ambient temperature, 1h22m burn time, 100% Biochar recovery, flame cap OK, slightly unstable flame, small amount of smoke for last 10m at base near the end of the burn
  • test time for 7L water pasteurization (3cm below top of stockpot)(71degsC) 58m
  • breakfast: sausages