Generalizing Carnot To Include Fuel Cells
in [Math]
|
Prev: THE MYSTERY OF THE CARROT. OH PARSNIP, WHEREFORE ART THOU?
Next: limit((sum(exp((-1)^k*(Sum(ln(k0-1)/(-1)^k0, k0 = 2 .. k))), k= 2 .. n))/s
From: Ivar S. Ertesvåg on 28 Feb 2010 12:32 Bret Cahill wrote: >>>Carnot is almost two centuries old and only covers heat engines. > > > The Pythagorean Theorem is over two millennia old and only covers > right triangles. > > >>Is a fuel cell a heat engine? > > > Is a 4 - 5 - 6 triangle a right triangle? > > Someone came up with the law of cosines to cover _any_ triangle. > > Similarly someone needs to come up with a maximum limit formula/law/ > equation that will cover _any_ mechanism that oxidizes fuel to > ultimately produce mechanical work. > > Bret Cahill This "came up" decades ago.... One of its forms are known as exergy analysis of reacting systems. Take a look in a thermo-textbook or search for combinations of "exergy analysis" AND "fuel cell" or "reacting system"
From: Bret Cahill on 28 Feb 2010 21:26 > >>>Carnot is almost two centuries old and only covers heat engines. > > > The Pythagorean Theorem is over two millennia old and only covers > > right triangles. > > >>Is a fuel cell a heat engine? > > > Is a 4 - 5 - 6 triangle a right triangle? > > > Someone came up with the law of cosines to cover _any_ triangle. > > > Similarly someone needs to come up with a maximum limit formula/law/ > > equation that will cover _any_ mechanism that oxidizes fuel to > > ultimately produce mechanical work. > > > Bret Cahill > > This "came up" decades ago.... > One of its forms are known as exergy analysis of reacting systems. > Take a look in a thermo-textbook or search for combinations of > "exergy analysis" AND "fuel cell" or "reacting system" We need a combination of "fuel cell" + "heat engine." And anything else that can get mechanical work from fuel. Bret Cahill
From: jimp on 28 Feb 2010 21:41 In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote: >> >>>Carnot is almost two centuries old and only covers heat engines. >> >> > The Pythagorean Theorem is over two millennia old and only covers >> > right triangles. >> >> >>Is a fuel cell a heat engine? >> >> > Is a 4 - 5 - 6 triangle a right triangle? >> >> > Someone came up with the law of cosines to cover _any_ triangle. >> >> > Similarly someone needs to come up with a maximum limit formula/law/ >> > equation that will cover _any_ mechanism that oxidizes fuel to >> > ultimately produce mechanical work. >> >> > Bret Cahill >> >> This "came up" decades ago.... >> One of its forms are known as exergy analysis of reacting systems. >> Take a look in a thermo-textbook or search for combinations of >> "exergy analysis" AND "fuel cell" or "reacting system" > > We need a combination of "fuel cell" + "heat engine." > And anything else that can get mechanical work from fuel. All fully understood but not by you it appears. -- Jim Pennino Remove .spam.sux to reply.
From: Bret Cahill on 28 Feb 2010 23:58 > >> >>>Carnot is almost two centuries old and only covers heat engines. > > >> > The Pythagorean Theorem is over two millennia old and only covers > >> > right triangles. > > >> >>Is a fuel cell a heat engine? > > >> > Is a 4 - 5 - 6 triangle a right triangle? > > >> > Someone came up with the law of cosines to cover _any_ triangle. > > >> > Similarly someone needs to come up with a maximum limit formula/law/ > >> > equation that will cover _any_ mechanism that oxidizes fuel to > >> > ultimately produce mechanical work. > > >> > Bret Cahill > > >> This "came up" decades ago.... > >> One of its forms are known as exergy analysis of reacting systems. > >> Take a look in a thermo-textbook or search for combinations of > >> "exergy analysis" AND "fuel cell" or "reacting system" > > > We need a combination of "fuel cell" + "heat engine." > > And anything else that can get mechanical work from fuel. > > All fully understood You still think Reynolds number is irrelevant to aerodynamics? Bret Cahill
From: jimp on 1 Mar 2010 01:11
In sci.physics Bret Cahill <BretCahill(a)peoplepc.com> wrote: > >> >> >>>Carnot is almost two centuries old and only covers heat engines. >> >> >> > The Pythagorean Theorem is over two millennia old and only covers >> >> > right triangles. >> >> >> >>Is a fuel cell a heat engine? >> >> >> > Is a 4 - 5 - 6 triangle a right triangle? >> >> >> > Someone came up with the law of cosines to cover _any_ triangle. >> >> >> > Similarly someone needs to come up with a maximum limit formula/law/ >> >> > equation that will cover _any_ mechanism that oxidizes fuel to >> >> > ultimately produce mechanical work. >> >> >> > Bret Cahill >> >> >> This "came up" decades ago.... >> >> One of its forms are known as exergy analysis of reacting systems. >> >> Take a look in a thermo-textbook or search for combinations of >> >> "exergy analysis" AND "fuel cell" or "reacting system" >> >> > We need a combination of "fuel cell" + "heat engine." >> > And anything else that can get mechanical work from fuel. >> >> All fully understood > > You still think Reynolds number is irrelevant to aerodynamics? > > > Bret Cahill One more time. I never said Reynolds number is irrelevant to aerodynamics. What I said was Reynolds number is irrelevant to the landing orientation of your falling, magic pixie dust laser reflectors. If you actually knew what the term "Reynolds number" means, you would know that it is a determining factor in how fast your magic pixie dust laser reflectors would fall, but has nothing to do with their orientation, either while they are falling or once they hit the ground. And now we know that you also have no clue to the meaning of the terms "heat engine" or "fuel cell". -- Jim Pennino Remove .spam.sux to reply. |