Episode 11: A duct fan for a heat exchanger, driven by AI prompts

Name: Episode 11: A duct fan for a heat exchanger, driven by AI prompts
Uploaded: 2026-10-01T08:00:00+02:00
Duration: 9 min 44 s
Description: Designing the fan of a heat-pump exchanger from its flow rate and pressure drop: a locally connected AI assistant drives Heliciel with prompts — ducted fan model, rotation speed found for the target pressure, pressure and efficiency against rpm, 5, 7 or 9 blades at equal thrust, and the limit of a single axial stage at 10,500 Pa.

Heliciel video tutorial, episode 11

Designing the fan of a heat-pump exchanger from its flow rate and pressure drop: a locally connected AI assistant drives Heliciel with prompts — ducted fan model, rotation speed found for the target pressure, pressure and efficiency against rpm, 5, 7 or 9 blades at equal thrust, and the limit of a single axial stage at 10,500 Pa.

Chapters

0:00 Introduction
0:28 Connecting the AI assistant to Heliciel
1:03 The specification, in a prompt
1:31 The ducted fan model in the gallery
2:25 First fan: 1,000 m³/h, 420 Pa
3:27 Second fan: 3,000 m³/h, 3,700 Pa
4:19 Pressure and efficiency against rpm
4:47 Wider chords: the cost in efficiency
5:41 Undoing a design point
5:58 5, 7 or 9 blades at equal thrust
6:48 The second fan in 3D
7:12 Third point: the limit of an axial stage
8:13 Revising the exchanger, third fan
9:07 Conclusion

Also on YouTube, with English and French audio tracks and subtitles: https://youtu.be/_fvNpUCLALU

Going further: fans and ventilation

Previous episode: Episode 10: Wind and tidal turbines with Heliciel

The whole series: Heliciel video tutorials