hvac_duct_size

io.github.vanakenj45/x402-agent-api · Verify this server

Answers "What size duct for 1,000 CFM at 0.08 in. w.g./100 ft?", "What is the velocity and friction in a 24×12 duct at 2,000 CFM?" and "What height do I need with a 10 in depth limit?" for duct design and checking. Give any two of a duct size (round diameter, or rectangular width × height), airflow, velocity and friction rate (equal-friction sizing); a single width or height is held as a fixed side. Returns the exact round diameter and a rectangular equivalent (ASHRAE/Huebscher equivalent diameter for equal friction, or equal area for a velocity design), the nearest standard round and rectangular sizes with the velocity and friction of each, the friction loss per 100 ft (Darcy-Weisbach with Colebrook-White, galvanized steel, standard air), velocity pressure, Reynolds number, and design checks for velocity, friction and aspect ratio. IP (in, CFM, FPM) or SI (mm, L/s, m/s, Pa/m, metric sizes). Every result includes `steps` with the equations and numbers. You are only charged when a result is returned: invalid input (400) and upstream failures (4xx/5xx) are not settled. Costs $0.002 USDC per call via x402. Paid per call with x402 inside MCP (see the server instructions).