{
  "release": "DGTE public research update 2026-10-20 R7",
  "authors": {
    "seed_original": "BD / Bojan Dobrečevič",
    "MV_VL2_R3": "Claude",
    "verification_scenarios_economics_and_public_synthesis": "GPT"
  },
  "status": "Reduced numerical model, not measured plant performance or installed quote",
  "common": {
    "heat_input_W": 1000000.0,
    "coolant_in_C": 25,
    "coolant_out_C": 30,
    "condensing_C": 35,
    "minimum_source_HX_approach_K": 5,
    "assumed_external_auxiliary_kW": 5,
    "eta_turbine": 0.85,
    "eta_generator": 0.93,
    "C0": 1.2
  },
  "scenarios": [
    {
      "id": "S60-F",
      "hot_in_C": 60,
      "hot_out_C": 50,
      "R3_gas_C": 45,
      "R3_H_m": 10,
      "R3_D_m": 0.8,
      "R3_reproduced_gross_kW": 15.1349510303,
      "R3_reproduced_net_kW": 10.1349510303,
      "GPT_1K_1kPa_025_net_kW": 7.1927013,
      "GPT_1K_1kPa_slip_net_range_kW": [
        3.4725754,
        7.1927013
      ],
      "conditional_total_CAPEX_range_EUR": [
        22704,
        47027
      ]
    },
    {
      "id": "S90-F",
      "hot_in_C": 90,
      "hot_out_C": 70,
      "R3_gas_C": 65,
      "R3_H_m": 40,
      "R3_D_m": 0.6,
      "R3_reproduced_gross_kW": 35.32087543,
      "R3_reproduced_net_kW": 30.32087543,
      "GPT_1K_1kPa_025_net_kW": 27.9850329,
      "GPT_1K_1kPa_slip_net_range_kW": [
        17.9968116,
        27.9850329
      ],
      "conditional_total_CAPEX_range_EUR": [
        117667,
        182972
      ]
    }
  ],
  "sensitivity_scope": "Fixed corresponding R3 geometries, assumed slip range 0.25/0.5/1 m/s; selected omitted terms added, not reoptimized maxima or confidence intervals.",
  "economics": {
    "full_load_hours_year": 8000,
    "electricity_value_EUR_kWh": 0.12,
    "years": 15,
    "real_discount_rate": 0.08,
    "annual_maintenance_fraction_total_CAPEX": 0.03,
    "NPV0_EUR_per_net_kW": 6538.193661,
    "simple_5year_payback_EUR_per_net_kW": 4173.913043,
    "excluded": "taxes, financing, purchased heat, exceptional replacement costs; input value is a scenario, not a current market quote"
  },
  "exclusions": [
    "validated drift/heat transfer closure",
    "full coupled carrier and condensate enthalpy/mixing closure",
    "NCG",
    "separator constitutive law",
    "dynamic stability",
    "hardware net electrical measurement",
    "matched installed cost quote"
  ],
  "reproducibility": {
    "python": "3.12.14",
    "CoolProp": "8.0.0",
    "EOS_revision": "ae81610e7d23efc57f9d051c8e70a4d66e87537f",
    "Claude_R3_original_sha256": "1ede72128eaf293405e4cf1c69fbc266b5eefd1e2c605afe83ae5efb4ef5b023",
    "scope": "Independent author-code execution and separate numerical integration, using the same EOS and unvalidated drift closures; not independent physical validation."
  }
}