Are Electric Superchargers Worth the Energy Storage Concerns?

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Discussion Overview

The discussion revolves around the viability and challenges of electric superchargers in automotive applications, focusing on energy storage concerns, power requirements, and comparisons to traditional turbocharging methods. The scope includes technical explanations and conceptual clarifications regarding the mechanics and efficiency of electric superchargers.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • Some participants express concerns that the average automotive battery voltage is too low for effective use of electric superchargers.
  • Others argue that the size and weight of the motors needed for sufficient air compression are significant drawbacks.
  • One participant highlights the high power requirements for compressing air at necessary pressure and flow rates, suggesting that electric superchargers may not be as effective as mechanically coupled systems like turbochargers.
  • A participant mentions that some manufacturers, like Audi and Volvo, are experimenting with motor/generator systems instead of traditional mechanical links.
  • Another viewpoint suggests that electric superchargers could be beneficial for quickly spooling up larger turbos, indicating a potential niche application.
  • One post introduces a fuel/O2 gas powered turbo system, which is questioned for its relevance to the main topic of electric superchargers.

Areas of Agreement / Disagreement

Participants generally express skepticism about the practicality of electric superchargers, with multiple competing views on their efficiency and application. The discussion remains unresolved regarding their overall worth compared to traditional systems.

Contextual Notes

Participants note limitations related to battery voltage, motor size, and power requirements, but do not resolve these issues or provide definitive solutions.

Ryuk1990
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Does anyone here have any experience with electric superchargers? From the limited information I've read on the Internet, it seems energy storage is the biggest issue with them. For one, the average automotive vehicle tends to have a battery with too low of a voltage. Also, the motors that provide enough compression are too heavy/big.
 
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The limiting factor goes back to power requirements- a lot of power is required to compress air at the pressure and flow rate required to run an engine. Paired with the fact that an electric supercharger requires its own energy storage and motor to drive the compressor, it's really a losing proposition compared to mechanically coupling to the engine either through belt drive or exhaust turbine drive (as in a turbocharger).
 
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Audi has prototypes and some volvo trucks run a motor/generator instead of mechanical linking as in a turbo compound engine.
 
In short bursts, they can function at low boost levels. Probably their best use though would be to quickly spool up a larger turbo. Of course, electric-assist turbos do the same thing. :biggrin:
 
densifier

I am working on a fuel/O2 gas powered turbo system. Any thoughts?
 
I'm thinking that has nothing to do with this thread's topic...
 

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