{
  "node": {
    "id": "block:gas-fan",
    "type": "Block",
    "label": "Fan pressure curve and power",
    "properties": {
      "id": "gas-fan",
      "kind": "studio",
      "name": "Fan pressure curve and power",
      "summary": "Adds a speed-dependent pressure rise against a flow-resistance curve and accounts for input power.",
      "behavior": "Adds a speed-dependent pressure rise against a flow-resistance curve and accounts for input power.",
      "documentationSlug": "gas-fan",
      "referenceOnly": true,
      "ports": [
        {
          "name": "a",
          "direction": "conserving",
          "unit": "gas",
          "description": "Gas side A"
        },
        {
          "name": "b",
          "direction": "conserving",
          "unit": "gas",
          "description": "Gas side B"
        },
        {
          "name": "Relative fan speed",
          "direction": "input",
          "unit": "fraction",
          "description": "Relative fan speed is a directed fraction input to this component, expressed in fraction. Its binding supplies information; it is not a conserving connection."
        },
        {
          "name": "mass Flow",
          "direction": "output",
          "unit": "kg/s",
          "description": "Directed output available to compatible consumers: mass Flow."
        },
        {
          "name": "power",
          "direction": "output",
          "unit": "W",
          "description": "Directed output available to compatible consumers: power."
        },
        {
          "name": "fluid Power",
          "direction": "output",
          "unit": "W",
          "description": "Directed output available to compatible consumers: fluid Power."
        },
        {
          "name": "loss",
          "direction": "output",
          "unit": "W",
          "description": "Directed output available to compatible consumers: loss."
        }
      ],
      "parameters": [
        {
          "key": "shutoffPressurePa",
          "label": "shutoffPressurePa",
          "unit": "Pa",
          "default": 2000,
          "description": "Declared authoring field: shutoffPressurePa.",
          "min": 0,
          "max": 100000000
        },
        {
          "key": "linearResistance",
          "label": "linearResistance",
          "unit": "Pa s/m3",
          "default": 1000,
          "description": "Declared authoring field: linearResistance.",
          "min": 1e-06,
          "max": 1000000000000
        },
        {
          "key": "quadraticResistance",
          "label": "quadraticResistance",
          "unit": "Pa s2/m6",
          "default": 1000,
          "description": "Declared authoring field: quadraticResistance.",
          "min": 0,
          "max": 1000000000000
        },
        {
          "key": "speed",
          "label": "speed",
          "unit": "fraction",
          "default": 1,
          "description": "Declared authoring field: speed.",
          "min": 0,
          "max": 2
        },
        {
          "key": "efficiency",
          "label": "efficiency",
          "unit": "fraction",
          "default": 0.8,
          "description": "Declared authoring field: efficiency.",
          "min": 1e-06,
          "max": 1
        }
      ],
      "equations": [],
      "example": {
        "title": "Use this authoring component",
        "text": "Choose this component in the Studio library and configure its declared interface. This reference describes the authoring contract; it does not claim a standalone numerical validation or a measured result.",
        "url": "https://design.lemonergy.com/cosim",
        "label": "Open Studio"
      },
      "limits": [
        "The symbolic diagram describes the component and its declared interface. It is not a solved circuit or simulated output.",
        "Configured parameters and model connections determine the result. Check the complete model before interpreting its outputs."
      ],
      "evidence": [
        "docs/glossary/studio-help-catalog.json"
      ],
      "caseIds": [],
      "sourceRepository": "battery-design",
      "sourceRevision": "e248d21a9902225f1075624f23e7628b54cdb7cc",
      "reviewed": "2026-10-30",
      "type": "gas-fan",
      "implementationId": "gas-fan",
      "url": "https://lemonergy.com/learn/glossary/blocks/gas-fan/",
      "documentationUrl": "https://lemonergy.com/learn/glossary/blocks/gas-fan/",
      "sourceFile": "studio-help-catalog.json",
      "studioHelp": {
        "type": "gas-fan",
        "namespace": "physical",
        "slug": "gas-fan",
        "canonicalSlug": "gas-fan",
        "existing": false,
        "dynamic": false,
        "scene": {
          "kind": "component",
          "componentId": "reference",
          "type": "gas-fan",
          "name": "Fan pressure curve and power",
          "domain": "gas",
          "family": "fan",
          "operation": "Adds a speed-dependent pressure rise against a flow-resistance curve and accounts for input power.",
          "mechanism": [
            "Speed command",
            "Fan pressure rise",
            "Gas flow and power"
          ],
          "ports": [
            {
              "id": "a",
              "domain": "gas",
              "kind": "conserving",
              "label": "Gas side A",
              "net": null,
              "peers": []
            },
            {
              "id": "b",
              "domain": "gas",
              "kind": "conserving",
              "label": "Gas side B",
              "net": null,
              "peers": []
            }
          ],
          "terms": [
            {
              "type": "gas-duct",
              "label": "Gas resistive duct"
            },
            {
              "type": "gas-sensor",
              "label": "Pressure / temperature sensor"
            }
          ],
          "symbol": [
            {
              "tag": "circle",
              "attrs": {
                "cx": 100,
                "cy": 40,
                "r": 32
              }
            },
            {
              "tag": "path",
              "attrs": {
                "d": "M10 40H68M132 40H190M100 40C65 10 115 5 100 40C145 30 140 65 100 40C85 80 60 45 100 40"
              }
            }
          ],
          "selection": {},
          "commands": [
            {
              "id": "speed",
              "label": "Relative fan speed",
              "quantity": "fraction",
              "unit": "fraction",
              "active": true,
              "summary": "Relative fan speed is a directed fraction input to this component, expressed in fraction. Its binding supplies information; it is not a conserving connection.",
              "source": null,
              "target": null
            }
          ],
          "outputs": [
            {
              "id": "massFlow",
              "quantity": "mass-rate",
              "declared": true,
              "consumers": [],
              "label": "mass Flow",
              "unit": "kg/s"
            },
            {
              "id": "power",
              "quantity": "power",
              "declared": true,
              "consumers": [],
              "label": "power",
              "unit": "W"
            },
            {
              "id": "fluidPower",
              "quantity": "power",
              "declared": true,
              "consumers": [],
              "label": "fluid Power",
              "unit": "W"
            },
            {
              "id": "loss",
              "quantity": "power",
              "declared": true,
              "consumers": [],
              "label": "loss",
              "unit": "W"
            }
          ],
          "parameters": [
            {
              "id": "shutoffPressurePa",
              "default": 2000,
              "unit": "Pa",
              "min": 0,
              "max": 100000000,
              "value": 2000
            },
            {
              "id": "linearResistance",
              "default": 1000,
              "unit": "Pa s/m3",
              "min": 1e-06,
              "max": 1000000000000,
              "value": 1000
            },
            {
              "id": "quadraticResistance",
              "default": 1000,
              "unit": "Pa s2/m6",
              "min": 0,
              "max": 1000000000000,
              "value": 1000
            },
            {
              "id": "speed",
              "default": 1,
              "unit": "fraction",
              "min": 0,
              "max": 2,
              "value": 1
            },
            {
              "id": "efficiency",
              "default": 0.8,
              "unit": "fraction",
              "min": 1e-06,
              "max": 1,
              "value": 0.8
            }
          ]
        }
      }
    }
  },
  "incoming": [
    {
      "id": "edge:usesBlock/term:power/block:gas-fan",
      "type": "usesBlock",
      "source": "term:power",
      "target": "block:gas-fan",
      "properties": {
        "sourceFile": "studio-help-catalog.json",
        "scope": "Declared interface quantity or semantic operation; not a numerical validation claim"
      }
    }
  ],
  "outgoing": [],
  "neighbors": [
    {
      "id": "term:power",
      "type": "Term",
      "label": "Power",
      "properties": {
        "id": "power",
        "name": "Power",
        "section": "topic-units",
        "definition": "The rate at which a cell delivers or absorbs energy: voltage times current, in watts. Power is limited by internal resistance and temperature long before capacity runs out.",
        "formula": "P = V × I",
        "unit": "W",
        "related": [
          "watt",
          "specific-power",
          "state-of-power",
          "internal-resistance"
        ],
        "example": {
          "title": "Separate power from energy",
          "text": "A 100 W load running for 30 min uses 50 Wh. Power tells you how fast energy is transferred; the duration determines how much energy is transferred."
        },
        "url": "https://lemonergy.com/learn/glossary/power/",
        "mentions": []
      }
    }
  ]
}