Math & Numbers
Thermal Comfort PMV-PPD (ISO 7730 / Fanger)
Compute the thermal comfort indices PMV (Predicted Mean Vote, −3 cold..+3 hot) and PPD (Predicted Percentage Dissatisfied, %) per ISO 7730 / ASHRAE 55, using the Fanger equations. Inputs: air temperature Ta, mean radiant temperature Tr, relative air velocity v_ar, relative humidity φ, metabolic rate M (met; 1 met = 58.2 W/m²), clothing insulation Icl (clo; 1 clo = 0.155 m²·K/W), and external work W (defaults to 0). The clothing surface temperature Tcl is solved iteratively. Returns a 7-level ASHRAE sensation label.
Quick start
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/thermal-comfort-pmv' \
-H 'Content-Type: application/json' \
-d '{"ta":22,"tr":22,"tempUnit":"°C","var":0.1,"rh":50,"met":1.2,"clo":1,"work":0,"decimalPlaces":3}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
POST https://api.elysiatools.com/en/api/tools/thermal-comfort-pmvParameters
| Name | Type | Required | Description |
|---|---|---|---|
| ta | number | Yes | Dry-bulb air temperature Ta, in the selected Temperature Unit. |
| tr | number | Yes | Mean radiant temperature Tr, in the selected Temperature Unit. |
| tempUnit | select | No | — |
| var | number | Yes | Relative air velocity v_ar in m/s. Typical office 0.1 m/s. 0–3 m/s. |
| rh | number | Yes |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-thermal-comfort-pmv": {
"name": "thermal-comfort-pmv",
"description": "Compute the thermal comfort indices PMV (Predicted Mean Vote, −3 cold..+3 hot) and PPD (Predicted Percentage Dissatisfied, %) per ISO 7730 / ASHRAE 55, using the Fanger equations. Inputs: air temperature Ta, mean radiant temperature Tr, relative air velocity v_ar, relative humidity φ, metabolic rate M (met; 1 met = 58.2 W/m²), clothing insulation Icl (clo; 1 clo = 0.155 m²·K/W), and external work W (defaults to 0). The clothing surface temperature Tcl is solved iteratively. Returns a 7-level ASHRAE sensation label.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=thermal-comfort-pmv",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "thermal-comfort-pmv",
"arguments": {
"ta": 22,
"tr": 22,
"tempUnit": "°C",
"var": 0.1,
"rh": 50,
"met": 1.2,
"clo": 1,
"work": 0,
"decimalPlaces": 3
}
}
}