Discussion Overview
The discussion centers around the design of a radial turbine intended to generate 5 watts from compressed air at high RPMs. Participants explore various approaches to turbine design, manufacturing considerations, and the challenges associated with achieving the desired efficiency and cost targets.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- Mike seeks guidance on designing a radial turbine that operates efficiently at 20,000 to 40,000 RPM using compressed air.
- APC offers assistance and inquires about the purpose of the turbine design, suggesting that the intended use may influence the design approach.
- Mike clarifies that the turbine is intended for a system operating in a harsh electromagnetic environment, aiming to eliminate electrical interconnects.
- APC mentions the possibility of using a 2D turbine design and offers to provide necessary dimensions based on their experience.
- Mike expresses concern about the cost of turbines available on the market, indicating a target price range that has not been met by existing options.
- Another participant suggests that making micro turbines may require DIY methods, mentioning chemical etching as a potential low-cost solution.
- This participant also notes that while 5 watts is a small power requirement, the cost of generators tends to be higher than expected.
- Mike, identifying as an electrical engineer, expresses confidence in managing the generator aspect but seeks advice on bearing and vibration management for durability.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the best approach to turbine design or manufacturing methods. Multiple competing views on design strategies and cost considerations remain evident throughout the discussion.
Contextual Notes
Participants mention various manufacturing techniques, including 2D turbine designs and chemical etching, but do not resolve the feasibility or effectiveness of these methods. There is also uncertainty regarding the availability of suitable turbines and the challenges of achieving the desired cost and performance metrics.
Who May Find This Useful
This discussion may be of interest to engineers and designers involved in turbine technology, particularly those focused on small-scale applications and cost-effective manufacturing methods.