Re: Heating Helium?

> Date: Wed, 26 Mar 2008 03:28:03 -0700
> From: duncan.rice@...
> To: the-list@...
> Subject: [Airshipworld List] Heating Helium?
>
>
> Thanks for the blog post in reply to my original question, and yes it was the
> mention of superheat on the goodyear blimp blog that got me thinking about
> this.
>
> I have been trawling through my recent internet history to try and find the
> source of a related question, but can't seem to find it. The question...
>
> Why don't we use heated helium to provide increased lift?
>
> It would seem that, as helium is an inert gas, there would be no reason why
> it couldn't be heated within an envelope. Not just in the superheat sense,
> but in a similar way to hot-air balloons or hot-air airships - why not
> hot-helium airships?
>
> Would it not be possible to increase the temperature of the lift gas in
> proporsion to the extra lift needed based on the weight of the cargo being
> carried?
>
> It seems so obvious now, there must be a reason that it wouldn't work or
> surely we would have done it long ago.
>
>
>
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