Mobile Biochar System: Build Plan, Sourcing & Timeline
A phased operational blueprint for fabricating a trailer-mounted mobile pyrolytic kiln system utilizing donated implements, engineering student oversight, and core trainee sweat equity.
📦 1. Materials List & Sourcing Strategy (New vs. Reconditioned/Donated)
To maximize capital efficiency, we leverage a hybrid sourcing model: acquiring the heavy structural chassis via donation or surplus, while investing in critical heat-containment and safety components.
Chassis & Structural (Sourced / Donated)
- • Dual-Axle Flatbed Trailer: 14ft to 16ft utility trailer (rated 7,000 lbs GVWR) acquired via surplus, donation, or budget reconditioning.
- • Heavy Steel Enclosures: Salvaged heavy-gauge steel burn boxes or modified 275-gal/300-gal IBC tote inner steel cages.
- • Tool Racks & Tie-Downs: Recycled angle iron and d-rings for securement.
Core Build & Safety Components (New / Precision)
- • Refractory Insulation: High-temperature firebrick or ceramic fiber blanket lining for inner walls.
- • Airflow & Blower System: 12V DC marine bilge blowers + solar panel/battery bank for forced-air top-lit uplift (TLUD).
- • Safety & Quenching Gear: High-temp welding gloves, heavy-duty fire extinguishers, and water-spray suppression plumbing.
🎓 2. Skills Matrix & Stakeholder Collaboration
This build serves as an active intersection for our engineering advisory partners and our hands-on vocational trainees.
Engineering Students & Professors
Responsible for thermal retention modeling, airflow/draft efficiency calculations, and structural load distribution design.
Core Mechanical / Trades Trainees
Responsible for metal cutting, MIG/TIG welding, trailer deck reinforcement, axle inspection, and mechanical assembly.
Field & Environmental Volunteers
Responsible for clean-up, rust removal, prep painting, tool organization, and field testing logistics.
⏱️ 3. Realist Phased Timeline & Cost Estimates
Because material gathering happens concurrently, the build is structured in manageable milestones so operations can scale without premature bottlenecks.
Phase 1: Sourcing & Engineering Blueprints (Weeks 1-4)
Est. Cost: $200 - $500 (Permits/Hardware)Secure donated flatbed trailer chassis, collect raw steel salvage, and finalize engineering CAD schematics with university advisory partners.
Phase 2: Chassis Refurbishment & Fabrication (Weeks 5-8)
Est. Cost: $800 - $1,500 (Refractory/Steel)Trailer deck repairs, welding custom burn vessel mountings, installing firebrick insulation lining, and integrating airflow manifolds.
Phase 3: Field Testing & Safety Calibration (Weeks 9-10)
Est. Cost: $300 (Safety gear/hoses)Initial controlled burn test on storm-fall slash, temperature logging with research teams, and operator safety sign-off.