Downdraft gasifier review
Reduction depth: 240 mm · nozzle estimate: 10.0 m/s · effective AFR: 0.32
Never operate indoors. Producer gas can contain lethal carbon monoxide, tar, condensate, fire, explosion, and engine-backfire hazards. This tool does not certify clean or tar-free gas.
Acoustic ullage & pipe observation
Estimated liquid fraction: 60% · lid opening not required
Pipe relative shift: 10.0% · pressure calibration required
Tank shape, wall material, temperature, contents, mounting, and sensor placement can dominate acoustic results.
Frost line & root-zone buffer
Frost-depth estimate: 0.29 m · root buffer index: 6.0
Use local code, soil, drainage, snow, groundwater, and utility data for foundations and buried water lines.
Compass-tape traverse
Example closed-loop area: 80.0 m² · Bowditch corrections staged: -0.111 m, 0.044 m
Record azimuths, slope distances, instrument uncertainty, datum, and closure before generating a property boundary.
Visual cryptography & local proof
Two-share overlay: yes · single share plaintext absent: yes · WebGPU optional · CPU fallback allowed
Physical overlay and optical handling require review. Private witnesses remain local; proof verification is required.