MAB's obsolete soon?????

check john kanzius hydrogen from salt water using radio waves, he was serching a cure for cancer, and found out you can split water with radio waves, don't know how much energy it takes but can't be much if it is radio waves. also united neuclear is working on a system using solar heat.
 
Hydrogen could very well be part of future energy solutions- the issue is finding a less expensive power source to produce it. Europe uses clean, safe nuclear power for electricity....heck, we wouldn't want to try that untested technology.
 
I have seen two smart cars right here on the eastern shore of Maryland within the last two weeks; they're here already and you bet more are coming. This government of ours is run by big business...don't be fooled into thinking any differently. There is nothing democratic about this republic we live in...conspiracy theorist? You bet yer a**!
 
I want to build a water powered boat. That way I have an unlimited supply of fuel.
 
Build a sailboat.

There are no engines powered only by water, but water has been used for centuries to make fires burn hotter. It's possible to use water in an engine that has an auxilliary power source, but it cannot by itself provide energy.

Recently it has been discovered that ultrasonic waves can separate water into it's components, but there is still no net energy being produced.
 
If you heat water at very high temperature, (over 500 deg. Celcius) and extreme pressure,you can thermally break the hydrogen oxygen bond,it then dissociates into Hydrogen and Oxygen,not that it is an efficient process to then subsequently oxydize the hydrogen again by running some kind of heat engine with at best 30-40% efficiency.All this is just balderash.
 
Breaking the bonds between hydrogen and oxygen in water requires exactly the same amount of energy as can be released by re-combining (burning) hydrogen with oxygen.

However, nothing is 100.00000000 percent efficient. Electrical resistance in the wiring, mechanical friction, and the like, rob some of the energy produced. Internal combustion engines are at best, about 40 percent efficient at converting the potential energy of combustion into mechanical work.

"Suppose that you add a generator to the motor and us that electricity to break down more water into Hydrogen and Oxygen? Won't THAT fix the problem?" No. Suppose that you have an electrolysis cell capable of converting 100 percent of the electrical energy to breaking the hydrogen and oxygen bonds. You feed 2 KW of electrical energy into it from the generator. You lose some of the 2 KW due to resistance in the wiring. So, 1.95 KW worth of H2 and O2 are produced. That goes to the IC engine. A little more energy is lost because of friction in the tubing, so 1.94 KW of fuel and oxygen gets to the engine. Since the internal combustion engine is only 40% efficient, you end up with 0.97 KW output from the generator. IF you feed 100 percent of this energy into the generator, since IT is only about 85% efficient, you get about 0.82 KW out, to feed the Hydrogen generator. And, the downward spiral continues. Wihthin seconds, you aren't producing enough gas to keep the engine running, and everything comes to a halt...
 
That the same energy is released is true but in any practical heat engine only a fraction of this chemical energy can be turned into work (mechanical energy).This fundamental fact is stated by the second law of thermodynamics,which relates the maximum theoretical efficiency that can be attained with a heat engine to the operating temperatures of the engine and the environment in which it operates .Large diesel engines can attain an efficiency of about 40 %,and a hydrogen powered engine could come close.
 
Exactly. And, even IF you could convert 100 percent of the energy released from burning hydrogen, AND you could somehow convert 100 percent of that energy into electrical power, AND somehow route 100 percent of that electrical power back to the mythical 100 percent efficient hydrogen electrolysis unit, there would be NO energy left over for the useful work of moving the system, because ALL the energy would be required to keep the system perpetually moving...
 
From an efficiency point of view it makes precious little sense anyway to turn high grade electrical energy first into chemical energy to run some kind of heat engine or a fuel cell, to finally produce mechanical energy with a LOUSY conversion efficiency, when this electrical energy can be converted directly into mechanical energy with a conversion efficiency of 90% or so (depending on how much you want to spend on building an efficient electrical motor).
This of course ignores the storage problem inherent in vehicular energy use.Safe hydrogen storage under high pressure is certainly not cheap.I think that advanced battery technology looks more promising and is far more efficient, an overall conversion efficiency of 70% is certainly economically attainable,two to three times more efficient than the hydrogen route would be !.Plug in hybrids are allready leading the charge.The hydrogen energy economy is just an expensive pipe dream.Then we can concentrate instead on generating electricity more efficiently and with less pollution.This could be done in part with advanced technology nuclear power plants.Other countries esp, France are allready well on their way in doing just that,but in the increasingly technologically backward US,little except talk is going on.
 
Back
Top