{
  "revision": "2026-11-06",
  "status": "Analytical concept; package allocations and robot duty are unverified targets",
  "constants": {
    "dryWoodLhvKwhKg": 5.2,
    "waterLhvPenaltyKwhKg": 0.68,
    "targetMoisture": 0.15,
    "rejectFraction": 0.1,
    "dryingHeatKwhKgWater": 0.9,
    "dryerElectricKwhKgWater": 0.02,
    "processingElectricKwhKgAccepted": 0.02,
    "batteryPathEfficiency": 0.9,
    "robotAverageKw": 1,
    "robotChargeEfficiency": 0.85,
    "dieselLhvKwhLitre": 9.96,
    "preparationVolumeM3": 0.4,
    "robotDockVolumeM3": 0.35,
    "fixedClearanceVolumeM3": 0.25,
    "preparedFuelBulkDensityKgM3": 220,
    "commonDryMassKg": 270
  },
  "defaults": {
    "profile": "shared",
    "collectionHours": 1,
    "moisturePct": 35,
    "dailyDemandKwh": 48,
    "reserveDays": 2,
    "payloadKg": 35,
    "radiusM": 100,
    "travelSpeedMs": 0.4,
    "handlingMinutes": 12,
    "packagingFactor": 1.25
  },
  "bounds": {
    "collectionHours": [
      0,
      8
    ],
    "moisturePct": [
      5,
      60
    ],
    "dailyDemandKwh": [
      0,
      200
    ],
    "reserveDays": [
      1,
      7
    ],
    "payloadKg": [
      5,
      100
    ],
    "radiusM": [
      10,
      500
    ],
    "travelSpeedMs": [
      0.1,
      1.5
    ],
    "handlingMinutes": [
      4,
      60
    ],
    "packagingFactor": [
      1,
      2
    ]
  },
  "profiles": [
    {
      "id": "shared",
      "name": "Reuse MSEC engine",
      "shortName": "Shared engine",
      "status": "Conditional integration",
      "description": "Wood gas supplements diesel in the existing parked engine and generator. Pilot fuel is reported separately.",
      "netAcEfficiency": 0.23,
      "recoverableHeatFraction": 0.5,
      "pilotEnergyFraction": 0.25,
      "ratedAcKw": 20,
      "maxRunHours": 6,
      "nonGeneratingWoodKwh": 4,
      "overheadNote": "Daily start/purge/oxidizer fuel allowance; not credited as useful output",
      "additionalDryMassKg": 250,
      "allocation": [
        {
          "name": "Gasifier and startup oxidizer",
          "m3": 0.25
        },
        {
          "name": "Gas cleanup and cooling",
          "m3": 0.18
        },
        {
          "name": "Heat exchangers and engine interfaces",
          "m3": 0.12
        },
        {
          "name": "Controls and electrical protection",
          "m3": 0.08
        },
        {
          "name": "Insulation, enclosure and mounts",
          "m3": 0.17
        }
      ]
    },
    {
      "id": "dedicated",
      "name": "Dedicated wood genset",
      "shortName": "Wood genset",
      "status": "Custom package target",
      "description": "An all-wood gasifier and spark-ignition genset. Adds a second engine and its cooling/service space.",
      "netAcEfficiency": 0.24,
      "recoverableHeatFraction": 0.5,
      "pilotEnergyFraction": 0,
      "ratedAcKw": 6,
      "maxRunHours": 12,
      "nonGeneratingWoodKwh": 4,
      "overheadNote": "Daily start/purge/oxidizer fuel allowance; not credited as useful output",
      "additionalDryMassKg": 400,
      "allocation": [
        {
          "name": "Gasifier and startup oxidizer",
          "m3": 0.22
        },
        {
          "name": "Gas cleanup",
          "m3": 0.14
        },
        {
          "name": "Engine and generator",
          "m3": 0.3
        },
        {
          "name": "Heat exchangers and cooling",
          "m3": 0.18
        },
        {
          "name": "Controls, enclosure and mounts",
          "m3": 0.16
        }
      ]
    },
    {
      "id": "fuelcell",
      "name": "High-temperature fuel cell",
      "shortName": "Fuel cell study",
      "status": "Research target",
      "description": "Gasification, catalytic reforming and a solid-oxide fuel cell. Assumes steady hot operation; no daily cold cycling.",
      "netAcEfficiency": 0.35,
      "recoverableHeatFraction": 0.4,
      "pilotEnergyFraction": 0,
      "ratedAcKw": 3,
      "maxRunHours": 24,
      "nonGeneratingWoodKwh": 6,
      "overheadNote": "Daily 0.25 kW thermal holding/integration allowance; cold startup is excluded",
      "additionalDryMassKg": 300,
      "allocation": [
        {
          "name": "Gasifier",
          "m3": 0.18
        },
        {
          "name": "Hot gas cleanup and catalytic reformer",
          "m3": 0.2
        },
        {
          "name": "Fuel cell hotbox and recuperator",
          "m3": 0.28
        },
        {
          "name": "Heat exchange and rejection",
          "m3": 0.12
        },
        {
          "name": "Controls, enclosure and mounts",
          "m3": 0.12
        }
      ]
    }
  ],
  "sources": [
    {
      "id": "wood",
      "title": "Forest Research · Wood as fuel",
      "url": "https://cdn.forestresearch.gov.uk/2022/02/fr_bec_wood_as_fuel_2012.pdf",
      "accessed": "2026-11-05",
      "scope": "Moisture-dependent wood heating value. The calculation uses a rounded 5.2 kWh/kg dry-wood LHV."
    },
    {
      "id": "gasification",
      "title": "Energypedia · Small-scale biomass gasification",
      "url": "https://energypedia.info/wiki/Biomass_Gasification_(Small-scale)",
      "accessed": "2026-11-05",
      "scope": "Reported wood consumption of 1.1–1.5 kg per electrical kWh; does not prove these custom package targets."
    },
    {
      "id": "flexifuel",
      "title": "European Commission · FlexiFuel-SOFC",
      "url": "https://cordis.europa.eu/project/id/641229/reporting",
      "accessed": "2026-11-05",
      "scope": "Pilot CHP operation; over-40% figure is product-gas-to-electricity. Target fuel-power range 25–150 kW; not a measured 35% net whole-wood micro-unit."
    },
    {
      "id": "hieff",
      "title": "European Commission · HiEff-BioPower",
      "url": "https://cordis.europa.eu/project/id/727330/reporting",
      "accessed": "2026-11-05",
      "scope": "Integrated gas cleaning and SOFC pilot; reported stack degradation remains a durability gap."
    },
    {
      "id": "pp30",
      "title": "ALL Power Labs · Power Pallet",
      "url": "https://www.allpowerlabs.com/product-overview/powerpallet",
      "accessed": "2026-11-06",
      "scope": "Manufacturer lists a 25 kW configuration and shipment dimensions/masses: 1.83×1.43×1.43 m and 1,406 kg, plus 0.82×0.82×1.02 m and 91 kg. Shipping envelopes are not installed volume."
    },
    {
      "id": "forwarder",
      "title": "Logbullet · Mini forestry forwarder",
      "url": "https://www.logbullet.com/",
      "accessed": "2026-11-06",
      "scope": "Reference for collecting and transporting wind-fallen wood. This is not evidence for a compact autonomous robot or its assumed cycle rate."
    },
    {
      "id": "msec",
      "title": "MSEC · Current vehicle design",
      "url": "https://msec.redgold.app/",
      "accessed": "2026-11-06",
      "scope": "Owning vehicle project. Private canonical power study retains separate mechanical-drive and series-hybrid battery architectures."
    }
  ]
}