Vortia 3DTools
Everything you can use without opening the app: quick calculators, the calculation method with its sources and case studies worked from start to finish.
Calculators
A quick number, with the same formulas as the app.
Duct air velocity calculator
Velocity, velocity pressure and equivalent Ø from the airflow and the section. And the standard diameter for the velocity you want.
Open the calculator →Duct pressure drop calculator
Pressure drop per metre and per run with Darcy-Weisbach and Colebrook, plus fittings with their ζ. Circular or rectangular.
Open the calculator →Airflow converter
m³/h, l/s, m³/s, m³/min and CFM instantly. And the airflow for a room from the air changes per hour.
Open the calculator →Rectangular to circular duct calculator
Equivalent Ø of a rectangular duct (Huebscher) and the side you need to replace a circular one.
Open the calculator →Method and case studies
How Vortia 3D calculates, checked by hand, and five projects from start to finish: offices, joinery workshop, restaurant kitchen, dwelling and shop. Each one opens in the app.
How Vortia 3D calculates
Air properties, Colebrook, fittings with their sources, terminals and noise, checked against a hand-worked example.
Read →Case study: supply ventilation for an office floor
6,000 m³/h offices: sizing, damper balancing, silencer and fan.
See the case →Case study: dust extraction in a joinery workshop
4 machines and a bag filter: transport velocity, dampers, fan and ATEX.
See the case →Case study: restaurant kitchen extract
3 m canopy and roof fan: capture, diameter, noise and fire code.
See the case →Case study: dwelling ventilation (Spanish CTE DB-HS 3)
3-bedroom dwelling: DB-HS 3 airflows, duct size, valves and night-time noise.
See the case →Case study: ventilation of a 2-floor shop
2-floor clothes shop: IDA 3 airflows, fitting rooms, riser, fire damper and heat recovery.
See the case →Example report
The full 11-page PDF the app generates for the office case study.
Download the PDF →