Metal Hydride Tanks

As a testament to why you must copy and paste every word in this site here is some data  saved from 2006 no god from the web

Our new Smart Tank® storage system has been installed in our Corvette test vehicle.
The Smart Tanks® feature additional storage capacity, faster hydrogen release time, integrated internal temperature monitoring, and auto shut-off if air or water is detected at the inlet. The new tank also incorporates a "scrubber" to provide additional protection from contamination in case sub-standard Hydrogen is introduced, or a fueling error occurs.

These are the first 4 Smart Tanks® manufactured...waiting to be installed in our Corvette test vehicle.
Using the existing "Standard Range" H2 tanks in the Corvette, we consistently got between 345 and 365 miles between fills.
We're now expecting a range of approximately 450 miles using the new tanks.
If all goes as expected, Smart Tanks® will become standard equipment in all our Hydrogen Fuel Kits.

RESULT AFTER 20 YEARS ????????

Currently in its final testing phase, and will shortly be producing
Hydrogen Fuel System Conversion Kits & Hydrogen Generators for several late model, fuel injected, Gasoline powered vehicles.

Tank placement in the Mitsubishi Endeavor. Mounting the tanks along the inside wall conserves
space and still allows adequate room for hauling for large objects.

Powering a vehicle by Hydrogen is by no means a new idea, and in fact, almost all automobile manufacturers are currently developing a new generation of vehicles that run on Hydrogen as opposed to Gasoline. This new generation of vehicles are essentially electric cars that use a Fuel Cell instead of a battery to run the electric motor. Using a chemical process, Fuel Cells in these new vehicles convert the stored Hydrogen on board, and the Oxygen in the air, directly into electricity to power their electric motors.

 

These new Hydrogen powered electric vehicles are very efficient, and in fact are more efficient than any internal combustion engine. The problem is that these new vehicles are years away from production, are very expensive, and converting to using Hydrogen fuel in this manner requires you to buy a new ( and expensive ) vehicle. All Hydrogen/Fuel Cell systems currently under development by large manufacturers have you purchase Hydrogen as you would Gasoline.

Our system comes with its own "in-home" Hydrogen generator which allows you to manufacture fuel yourself at near zero cost. 

  The   Hydrogen Fuel System Kit is an intermediate approach that simply converts your existing vehicle to burn Hydrogen or Gasoline.

 

The stock Gasoline fuel injection system remains intact and is not modified in any way. It is shut down while the Hydrogen fuel system is activated. 
The Hydrogen gas is precisely metered into the air intake of the engine while the exhaust gasses are continuously analyzed for correct burn ratio. 


This allows you to switch between running on Gasoline or Hydrogen at any time.

 

The engine itself is only slightly modified, the conversion makes substantial changes to the computer & electrical system, ignition and cooling systems. Since they never have to be removed,

 

Hydrogen fuel storage (Hydride tanks) can be installed in virtually any available space within the vehicle.

Compatibility

Due to the fact that Hydrogen gas burns so much faster than Gasoline, engines with compression ratios greater than 9.5 to 1 are very susceptible to damaging predetonation (engine knock).


For this reason, Hydrogen conversions are not recommended for vehicles with turbochargers, superchargers, or compression ratios greater than 9.5 to 1.


Also, because of the higher compression, different ignition system, and host of other factors,
the Hydrogen Fuel System will not work on diesel engines.

 The basic system consists of two parts, the Hydrogen fuel system in your vehicle, and a Hydrogen generating system that remains in your garage. The Hydrogen generator is either powered by Solar electric panels or a wind turbine set-up, either of which makes Hydrogen fuel at virtually no cost.

The first prototype - 1994 Corvette converted to run on Hydrogen. 
Using the Extended Range kit (2 sets of tanks) driving range is over 650 miles per fill.
As the Hydrogen gas is produced using our solar powered Hydrogen Generator,
the resulting fuel cost is near zero.

1994 Chevrolet Corvette with the UN1100C Hydrogen Fuel System installed.

 

What's Real?

   A lot has been written about converting vehicles to run hydrogen. Unfortunately, a lot of what you'll find on the internet is simply untrue.

   Unfortunately, because Hydrogen fuel has been in the new a lot these days, many fly-by-night "investment firms" and "Hydrogen Research" companies have popped up asking for money from investor..., then disappearing into the night.

   United Nuclear has developed every aspect of its Hydrogen Fuel System on its own, using our own funds. We do not sell stock, and do not need investors. We simply want to manufacture & sell a reliable Hydrogen Fuel Conversion System that can easily be installed in most late model vehicles.
We've been testing our Hydrogen Fuel System in our own vehicles over the past 8 years... have made improvements here and there over that time, and are now just about ready for production.
We fully guarantee & stand behind all our products & workmanship 

   ANY claim of fueling a car with water, and having the water converted to Hydrogen quickly enough to power a passenger vehicle is pure B.S. The bottom line is simple physics. It takes electrical energy to break the Hydrogen-Oxygen bond in water and release the free gases... and that takes time. The more energy applied to the water, the faster the gasses will evolve... up to a point.


It is not possible to create sufficient amounts Hydrogen gas from water (on board the vehicle) fast enough to idle the smallest passenger vehicle. If you're towing a nuclear reactor behind the car, along with a motor home-sized Hydrogen generator, you might have sufficient power and volume to accomplish the task, but that kind of defeats the purpose behind the conversion.


   You can produce your own Hydrogen from electricity using either common "household current" or directly from solar cells so your energy cost is zero. It does however take a substantial amount of time to produce sufficient Hydrogen to fill even a small tank.
   As an example, it takes over 2 days of our generator running at full power, 24 hours a day, to fill our smallest "short range" tank.

Storage

   Since you can't make Hydrogen quickly enough to power a car in real time, you must produce it separately, and store it as you store your Gasoline fuel supply in your vehicle now.
There are but 3 ways to do this:

1. Store the Hydrogen as a compressed gas.
2. Store the Hydrogen as a liquid.
3. Store the Hydrogen chemically bonded to a chemical.

We'll cover each option in order.

1. If you choose to store the Hydrogen as a compressed gas, you'll need HUGE tanks, and many of them, since Hydrogen isn't very dense, so a tank really can't hold all that much. In addition, you'll be driving a giant bomb. In a collision, expect to die in a huge fireball/explosion.

2. Choosing liquid does solve the density problem since liquids are far more dense than gasses, so you can reduce the amount of tanks and their sizes required to power the car. The new problem that pops up is the fact the liquid Hydrogen in cryogenic... in short REALLY cold. It requires vacuum-thermos ( dewar ) tanks and vents to exhaust the boiling Hydrogen gas. You'll also have to find a source for liquid Hydrogen which is far more expensive than Gasoline. You've also now increased you danger factor when it comes to a collision. Not only will you have more Hydrogen gas spewing around that's going to explode and burn, but you'll also have a liquid spraying about that's over 400 degrees below zero. Once you add in the added complexity of the system due to the cryogenic liquid, your vehicle will wind up being a giant, low efficiency, rolling bomb that costs more than your house, and costs far more to run than it did on Gasoline.

3. The 3rd option is simply the only way to go. There are materials call Hydrides that absorb Hydrogen like a sponge absorbs water. Typically, the tanks are filled with granulated Hydrides, and Hydrogen is pressurized into the material. Hydrides have many advantages over liquid & gas. One is that the density of the Hydrogen stored in the Hydride can be GREATER than that of liquid Hydrogen.

 

This translates directly into smaller and fewer storage tanks.
Once the Hydride is "charged" with Hydrogen, the Hydrogen becomes chemically bonded to the chemical. Even opening the tank, or cutting it in half will not release the Hydrogen gas. In addition, you could even fire incendiary bullets through the tank and the Hydride would only smolder like a cigarette. It is in fact, a safer storage system than your Gasoline tank is.
Then how do you get the Hydrogen back out? To release the Hydrogen gas from the Hydride, it simply needs to be heated.

 

This is either done electrically, using the waste exhaust heat, or using the waste radiator coolant heat.

   Our kits heat the Hydride tanks electrically, and as soon at the Hydride is sufficiently warm, Hydrogen is released from the tanks and the on-board computer detects the presence of Hydrogen pressure.

 

The fuel system remains in "Hydrogen" mode until the tank pressure begins to drop. If the tanks run out of Hydrogen, the engine will seamlessly switch over to Gasoline, which enables the car to run conventionally until the Hydrogen tanks are refilled.

   Using Hydrogen, the only exhaust products produced are water vapor and a tiny amount of Nitrogen Oxides. It's about as clean burning as you can get.

"Standard Range" Hydride tank placement in Corvette.
Driving range with these tanks is just a little over 350 miles and still leaves some usable luggage/trunk room.
( not that the Corvette really had any room to begin with )

Close-up shot of the Standard Range Hydride tank installation.

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