The Diffusion H2 Vent™

The Diffusion H2 Vent operates on a different principle than the Convection H2 Vent. It consists of a panel of high-density fiberboard inserted into the door or wall of the Cool Cell™. The panel is sized for the number and size of batteries housed within the Cool Cell™.

Section View

As with the Convection H2 Vent, the exterior face of the Diffusion H2 Vent panel is fitted with a wind and rain guard, and with heavy-duty mesh to prevent intrusion by large insects or other animals.

When hydrogen is present in a Cool Cell™ fitted with a Diffusion H2 Vent, it passes through the fiberboard almost as if it were a direct opening to the outside. This is because the hydrogen molecules are much smaller than the passageways through the densely packed fibers.

Hydrogen acts like water, and air like molasses trying to pass through the same sieve; the passage of air is blocked in both directions. The penetration of warm air from outside the Cool Cell™ is also prevented.

Passive Design - The Ultimate in Reliability

Both the Convection and Diffusion H2 Vents are completely passive in design. This results in the highest degree of reliability, a critical specification in this safety related application. Simply put, if hydrogen becomes present in a Cool Cell™ equipped with either of our H2 Vents, it will escape.

At Zomeworks, our philosophy is to accomplish a task with no external power or moving parts wherever possible. Cool Cells™ are outdoor enclosures, and must be able to function in a wide variety of hostile environments. By keeping our designs simple, our products can operate reliably across a wide range of environmental parameters.