What is the difference between a dry HHO cell and a wet HHO cell?

HHO dry cells are actually a design improvement over the HHO wet cell type. The end result of the hydroxy gas is the same in both types: the difference is based on the electrolyte deposit and the displacement of the electrode plate.

The wet cell design has the positive and negative electrode plates completely submerged in the electrolyte solution, which consists of water and catalyst.

Disadvantages of HHO Wet Cell Design:

  • More heat is generated through the cells.
  • More current (amperage) is needed
  • Positive electrodes (anodes) will corrode more due to oxygen attacking the metal surface (corrosion).

All these disadvantages translate into the technical word “inefficiencies”.

More heat is generated because the entire volume of the electrolyte solution is subjected to a current for the electrolysis process to take place. This additional current generates more heat which eventually turns into steam; which means that steam is being collected and replacing the volume of hydrogen gas.

The second disadvantage is that more current is needed for the full volume of electrolyte in the reservoir to perform the electrolysis process. The more current that is drawn from the vehicle’s charging system, the more fuel that is wasted! This is the exact opposite of what the HHO generator is supposed to achieve.

The third disadvantage is that the oxygen collecting anode plates have the entire surface area immersed in the cells and the oxygen collected on these plates from each cell will oxidize meaning it will eventually corrode beyond its limits and need to be cleaned. replaced.

HHO dry cell design

The HHO dry cell design can be viewed as one chamber for each cell. The best way to describe it in words is to imagine a square plate that has a circle about ½ to ¾ the width of the square. This circle is the closed chamber where the electrolysis process takes place. This is the first advantage over the wet type.

Each cell plate representing the anode and cathode (electrodes) is sealed with a rubber gasket or O-ring. Electrical connections connect to the outer perimeter of each board, so connections stay clean and dry. These plates are screwed together from the dry perimeter edge, using nylon-type washers to avoid lack of polarities.

The electrolyte is fed either by gravity or by an additional pump from an external tank (reservoir) that can be placed anywhere in the engine compartment. If a pump is not used, it should be located higher than the HHO dry cell system.

Advantages of HHO Dry Cells

  • Less current implementation is needed for each cell due to the volumetric size of the electrolyte within the closed chamber
  • Slimmer and more compact design, which is a great benefit in modern vehicles that have very compact engine compartments.
  • Less frequent maintenance is needed for the entire HHO dry cell system
  • Less corrosion occurs on anode plates due to restricted volume of electrolyte solution per second
  • Less current means less heat generation, which can be converted to steam: inefficiency

Disadvantages of dry HHO cells

  • The entire HHO dry cell must be completely disassembled for cleaning and maintenance, such as replacing the gasket seal of each cell, which results in more time compared to HHO wet cell maintenance.
  • Plates need to be more precise in hole alignment dimensions for maximum efficiency
  • Slightly more expensive to produce compared to wet type design

The HHO dry cell design has differed slightly from various experimenters who ended up doing R&D on their own initiative. Some have produced excellent quality kits and are being produced on a small scale production level.

In general, the best performance should be chosen when deciding to purchase an off-the-shelf kit that consists of the lowest amperage draw for the equivalent of ½ liter of HHO gas (hydroxy gas) for every liter of motor capacity.

This ensures that you are not overproducing HHO gas, which is excessive for the capacity of the motor at the lower current draw. Excessive current draw not only creates additional heat, it must be supported from the engine charging system using more idle revolutions per minute, which is the opposite principle of this fuel saver in the first place.

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