In reply to  Akira Shirakawa's message of Thu, 06 Oct 2011 11:43:40 +0200:
Hi,
[snip]
>On 2011-10-04 19:18, Akira Shirakawa wrote:
>> Hello group,
>
>More from New Energy Times on this matter:
>
>http://blog.newenergytimes.com/2011/10/06/nasa-wont-confirm-relationship-with-rossi-2/

"“You can’t deliver one megawatt of steam through a 2½-inch pipe unless you go
hypersonic,” the expert said.

So observers of the big 1 megawatt demonstration that Rossi promised for October
should look for steam exiting the shipping container in excess of 768 mph."

Surely this is only true if the pipe is opened to the air. If the steam remains
under pressure (and e.g. drives a turbine), then it need not be hypersonic, if
I'm not mistaken. (e.g. at 84 atm the speed would only be 83 mph).
Regards,

Robin van Spaandonk

http://rvanspaa.freehostia.com/project.html

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