{
  "fluid": "R410A",
  "fluid_backend": "CoolProp",
  "circuits": [
    {
      "id": 0,
      "components": [
        { "type": "IsentropicCompressor", "name": "comp", "isentropic_efficiency": 0.70, "t_cond_k": 313.15, "t_evap_k": 276.15, "superheat_k": 5.0, "emergent_pressure": true, "displacement_m3": 5.0e-5, "speed_hz": 50.0, "volumetric_efficiency": 0.92 },
        { "type": "Condenser", "name": "cond", "ua": 2000.0, "emergent_pressure": true, "subcooling_k": 5.0 },
        { "type": "IsenthalpicExpansionValve", "name": "exv", "t_evap_k": 276.15, "emergent_pressure": true },
        { "type": "Evaporator", "name": "evap", "ua": 1800.0, "emergent_pressure": true, "secondary_fluid": "Water" },
        { "type": "BrineSource", "name": "evap_water_in", "fluid": "Water", "p_set_bar": 2.0, "t_set_c": 12.0, "m_flow_kg_s": 0.5 },
        { "type": "BrineSink", "name": "evap_water_out", "fluid": "Water", "p_back_bar": 2.0 }
      ],
      "edges": [
        { "from": "comp:outlet", "to": "cond:inlet" },
        { "from": "cond:outlet", "to": "exv:inlet" },
        { "from": "exv:outlet", "to": "evap:inlet" },
        { "from": "evap:outlet", "to": "comp:inlet" },
        { "from": "evap_water_in:outlet", "to": "evap:secondary_inlet" },
        { "from": "evap:secondary_outlet", "to": "evap_water_out:inlet" }
      ]
    },
    {
      "id": 1,
      "components": [
        { "type": "BrineSource", "name": "ws", "fluid": "Water", "p_set_bar": 2.0, "t_set_c": 30.0, "m_flow_kg_s": 0.9 },
        { "type": "ThermalLoad", "name": "load", "design_mass_flow_kg_s": 0.9 },
        { "type": "BrineSink", "name": "wsk", "fluid": "Water", "p_back_bar": 2.0 }
      ],
      "edges": [
        { "from": "ws:outlet", "to": "load:inlet" },
        { "from": "load:outlet", "to": "wsk:inlet" }
      ]
    }
  ],
  "thermal_couplings": [
    { "hot_circuit": 0, "hot_component": "cond", "cold_circuit": 1, "cold_component": "load", "ua": 2000.0, "efficiency": 1.0 }
  ],
  "solver": { "strategy": "fallback", "max_iterations": 300, "tolerance": 1e-6 }
}
