{
  "id": "A-05",
  "title": "Dual-function ratio-reporter dye (ties to drift sensor)",
  "type": "additive",
  "gap_refs": [
    "G3",
    "G4"
  ],
  "claim_scaffold": {
    "independent": [
      "A coolant additive whose optical absorbance reports the fuel:pump ratio, enabling the composition-drift sensor of the control system."
    ],
    "dependents": "Dependents: absorbance band; sensor coupling.",
    "filed_overlap": "Nearest filed: none. DISTINCT: combination additive+sensing function."
  },
  "enabling_assets": [
    "src/screening/additive_screen.py",
    "src/analysis/fractionation_model.py"
  ],
  "novelty": {
    "score": 0.546,
    "axis": 3,
    "backends_used": [
      "openalex",
      "crossref"
    ],
    "backends_skipped": [
      "epo_ops",
      "patentsview"
    ],
    "n_examined": 20,
    "closest_art": [
      {
        "id": "https://openalex.org/W4407565418",
        "title": "Material and surface texture-dependent fluorescence behavior of liquid coolant wall films",
        "year": 2025,
        "source": "openalex",
        "url": "https://openalex.org/W4407565418",
        "venue": null,
        "snippet": "Abstract The study investigates the liquid film thickness-dependent laser-induced fluorescence of a dye in a heat transfer oil affected by wall reflections at different solid surface materials (aluminum, copper, steel) and surface textures (polished and sandblasted). A specially designed fluorescence cell allows a precise adjustment of the film thickness at a fixed temperature and allows the investigation of various substrate materials and textures. Photo-dissociation free measurements are ensured due to a closed-loop circuit, driven by a pump. The LIF signal was generated by admixture of the ",
        "cited_by": 2,
        "term_overlap": 0.3
      },
      {
        "id": "10.2172/4776349",
        "title": "THERMAL-STRESS AND STRAIN-FATIGUE ANALYSES OF THE MSRE FUEL AND COOLANT PUMP TANKS",
        "year": 1962,
        "source": "crossref",
        "url": "https://doi.org/10.2172/4776349",
        "venue": "",
        "snippet": "",
        "cited_by": 2,
        "term_overlap": 0.3
      },
      {
        "id": "10.4271/900808",
        "title": "Development of Test Stand to Measure the Effect of Coolant Composition on Engine Coolant Pump Seal Leakage",
        "year": 1990,
        "source": "crossref",
        "url": "https://doi.org/10.4271/900808",
        "venue": "SAE Technical Paper Series",
        "snippet": "<jats:p>&lt;div class=\"htmlview paragraph\"&gt;The test rig was designed and built to determine whether it is possible to objectively measure the effect of coolant composition on the performance of engine coolant pump seals. The rig uses a standard, current production, mechanical seal. A low silicate U.S. made coolant for baseline tests was selected. The effect of increased total dissolved solids (TDS) will be determined by adding twice and four times the normal recommended level (3% by volume) of supplemental coolant additive (SCA). Shakedown tests with the low silicate coolant were successful",
        "cited_by": 1,
        "term_overlap": 0.3
      }
    ],
    "retrieved": "2026-06-09",
    "known_blockers": []
  },
  "certainty": {
    "key_quantity": "system CHF (W/cm^2, est.)",
    "lead_proxy": "HFO-1336mzz-Z + vinylene carbonate 70:30 (discovery)",
    "ci90": [
      40.4,
      210.1
    ],
    "median": 105.3,
    "axis": 3,
    "calibration": "thermo sigma AAD 0.5%, Tb 0.1C (Phase-B); MC N=20k seed 7"
  },
  "urgency": {
    "score": 1.0,
    "axis": 5,
    "primary_driver": "ECHA_PFAS",
    "drivers": [
      {
        "driver": "ECHA_PFAS",
        "nearest_date": "2025-12-31",
        "citation": "ECHA Annex XV restriction report, submitted 13 Jan 2023 by DE/NL/DK/SE/NO; RAC/SEAC opinion-forming 2023-2025.",
        "applies_because": "displaces 306-94-5, 307-34-6, 311-89-7, 355-42-0, 756-13-8"
      },
      {
        "driver": "AI_DC_GROWTH",
        "nearest_date": "2026-06-09",
        "citation": "IEA Electricity 2024 / datacenter energy outlooks; rack power densities exceeding air-cooling limits drive two-phase adoption.",
        "applies_because": "secular demand"
      }
    ]
  },
  "proof": {
    "tier0_consensus": 0.2,
    "engines_min": 1,
    "limiting_component": "692-49-9",
    "md_tier": 2,
    "axis": 4,
    "md_grade": "full",
    "md_seeds": 4,
    "md_component_sigma": {
      "692-49-9": {
        "sigma_mNm": 16.06,
        "sem": 0.29,
        "n_seeds": 4
      }
    },
    "md_blend_sigma": null,
    "chf_input_rel_uncertainty": 0.25,
    "tier_status": {
      "tier0_solver_consensus": "weak",
      "tier1_md": "full",
      "tier2_cfd": "pass",
      "tier3_wetlab": "not_run"
    }
  },
  "fto_flag": "LOW",
  "fto_axis": 5,
  "fto_chart": {
    "max_overlap": 0.031,
    "heuristic_risk": "LOW",
    "n_blockers_compared": 2
  },
  "design_space_cells": null,
  "property_card": null,
  "tco": null,
  "cfd_tier2": null,
  "value_driver": "Additive+sensing royalty; ties into the moat.",
  "filing_route": "provisional",
  "score": {
    "N": 3,
    "U": 5,
    "C": 3,
    "P": 4,
    "F": 5,
    "total": 23,
    "formula": "2N+U+C+P+F (max 30)"
  },
  "status": "counsel_ready",
  "expected_casualty": false,
  "honesty": {
    "computational_not_measured": true,
    "no_best_fluid_claim": true,
    "language_doc_compliant": true
  }
}