1 MW is used as a measure of power transfer. The velocity of steam, through a given opening, produced by 1 MW cannot be calculated; too few required variables are populated. You would have to know beginning and ending temperatures, to calculate required water or steam. If you start with 1 degree C water, or end with 250 degree C steam, this would effect the required fluid quantities to consume 1 MW.
mix...@bigpond.com wrote: >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 cant 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 > >
