[PSUBS-MAILIST] Flywheel energy storage

[Tim Novak via Personal_Submersibles]

This is a really interesting concept.

 

It would make sense that the mass of the flywheel could double as a ballast block.  If the flywheel is not gimballed then there would be significant gyroscopic forces enacted on the vessel such as yaw changes resulting in roll and/or pitch forces. Perhaps two or three flywheels, fixed in place with different orientations, would zero the net gyroscopic forces. If the flywheel could be used to stabilise the vessel, would that consumption of inertial energy adversely reduce the range of the vessel in rough seas?

 

Tim

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Brian Cox via Personal_Submersibles
Sent: Sunday, March 21, 2021 9:13 AM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Flywheel energy storage

 

Might be useful as for gyro stabilizing in an ocean environment also !  

--- personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org>  wrote:

From: "Sean T. Stevenson via Personal_Submersibles" <personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
Subject: [PSUBS-MAILIST] Flywheel energy storage
Date: Sun, 21 Mar 2021 15:29:34 +0000

I was just envelope sketching a concept design, and I was struck by a thought: would a sub design using flywheel energy storage instead of batteries be feasable? I guess it would depend on design mission duration, and how frequently one could reconnect to shore power to spin it up again, but it occurs to me that if you could achieve the necessary storage capacity (kWh), there are several advantages to mechanical energy storage over chemical in the submarine environment.

Thoughts?

Sean

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