Build · 2023-04-05
Water check valve, short demo
The question
If excess pressure is bled off through a water check valve, does the remaining 1 cubic inch of air oscillate faster?
The answer
Yes. Venting the extra pressure through the water check valve lets the small air volume oscillate more quickly.
- Kind
- Build
- Status
- Built
- Date
- 2023-04-05
- Working volume
- ~1 in³ air
- Valve
- Water check valve
Video
What it is
A thermoacoustic engine fitted with a water check valve to remove excess internal air pressure so the ~1 in³ working volume oscillates faster.
Results
None yet.
Related
Does the design still work scaled to 3 feet?Yes. It runs at 3 ft, and it's the channel's most-watched build.See more →Can the clamp itself be the heat sink?In simulation, yes. About 2× the heat rejection in still air. Not yet built.See more →What happens when you inject air mid-run?Amplitude and speed both shift as internal pressure rises.See more →
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