85% eficiency?
producing work on 2º gradient
only published in mother earth journal
humm
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85% eficiency?
producing work on 2º gradient
only published in mother earth journal
humm
Works, as demonstrated by Mythsbusters !!
This is not, however, a perpetuum mobile since you have to keep adding energy to maintain a certain water temperature.
yeah who cares man if this was widely used there would be no need for petrol
the only reference is mather nature magazine which told it as a solar wheel
i dont blame my teachers after all both my folks are teacher i balme the parasitic petrol companies which tentacles reaches what gets taught and what not
I don't think you understand - it is not possible to operate any kind of vehicle on this. Even if it were, you would still need a source of fuel to keep the water heated, so you really gain nothing. In fact, it stands to reason that a car engine is probably much more energy efficient than this Minto wheel.
a car engine is 15% eficient minto wheel 85% according his author
electric cars should work on mintos thermic generators of electricity
you could use this to ehat the water:
Last edited by luxtpm; March 4th, 2012 at 01:33 PM.
Where did you hear the 85% efficiency figure? It is grossly wrong.
IEEE Xplore - The Thermodynamics Analysis of Thermal Efficiency of the Minto Engine
85% was the authors figure, minto
anyway i dont see so revolutionary its eficiency as its working with just 2 degree gradient
Then the authors ary idiots or lying
Maybe you should be complaining because your teachers are not teaching you critical thinking. Read the IEEE article I referenced above. The Carnot efficiency is 17% operating between 293.15 K and 353.15 K. With a 2 degree gradient, the efficiency would be far worse. Mother Earth News and Mythbusters both tried it and said it was useless. It was invented by the Iske brothers in 1881, reinvented by Minto in 1976, and nobody has found any use for it yet.
well so ill be critical with both education and myself and obtain eficiency myself:
http://energy.sdsu.edu/testhome/Test/solve/basics/tables/tablesPC/TSatR12.html
the vapur pressure with a gradient of five degrees its 100 kpa
this means the wheel can work with 10 m diametrum on a 5 º gradient
how much work is that for kg of r12?
1*10*10=100 J
whats the internal energy difference for 5 º
around 5 J/kg
U variation=Q-W
5=Q-100
Q=105
eficiency=w/q=100/105=95% eficiency
negelcting a ten percent of mechanical lost it gives the 85% figure matching the claimed author eficiency
whats wrong?
well i saw it:
whats the internal energy difference for 5 º
around 2000 J/kg in the best case
around 5000 j/kg in the worst case
U variation=Q-W
2000=Q-100
Q=2100
eficiency=w/q=100/2100=4.7% eficiency
in the worst case: 100/5100=2%
maximum eficiency for carnot?
1-cold focus/hot focus=1.3%
It doesn't look like you learned any thermodynamics either.
Look at equation 3 here. Carnot cycle - Wikipedia, the free encyclopedia
The Carnot thermodynamic efficiency is 1-Tc/Th
For a 5 degree difference, assume Tc is 293K and Th is 298K. This gives 1-293/298 = .017. That's 1.7 percent efficiency.
i rectified that in my next post check it out
the eficiency of this cycle is equal to carnots if not bigger
...which is a far cry from those 85% you initially suggested. In either case, totally insufficient to run a car on, unless of course you are in the Sahara dessert with a water reservoir the size of an olympic swimming pool on your roof !
I for my part will stick to the good old petrol engine until such time when something better and cheaper comes along for general use. It seems doubtful that this will take the form of a Minto wheel though...
Now a mentho/coke wheel....that's a different story![]()
and what if i build it and they send me to a secret island?
i was gonna ask my teacher about this but seeing in the worse case eficiency is better than carnot i better shut up
btw ill build it when all stock markets fall leaders get in jail and all info except weapons gets declasified and people starts living in natural cohoperatives were mnoey is useless
ill work on the cohoperative building these wheels to have enrgy for internet in the tomato filed
edit:
oh my stomcah still itches with the diefinition of funtionable according thermo
two ingeneers propose two different thermal engines which works and which doesnt:
A)an engine which works on love with eficiency under 1-(t1/t2)
B)a minto wheel with eficiency slightly over 1-(t1/t2)
note due to probability acountant if you get it wrong you get negative score
Much as I wish they would, I can see no reason why they would. (And who are "they", anyway?)
Or maybe your teacher will help you understand where you went wrong in your calculation.i was gonna ask my teacher about this but seeing in the worse case eficiency is better than carnot i better shut up
Or find out you are right and help you publish a paper that leads to you getting a Nobel prize.
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