Measure the pressure of hydrogen.

Pressure measurement of hydrogen fuel cells

Hydrogen poses a risk of permeation leading to leaks due to being the smallest molecule on Earth. It also has a highly flammable characteristic when exposed to air. Therefore, it is crucial to prevent leaks from hydrogen tanks or to detect them early. Keller's pressure sensors are used for leak testing in hydrogen fuel cells. The hydrogen fuel cell has three channels: one for air (oxygen), one for hydrogen, and one for cooling. Nitrogen is used first, followed by hydrogen, to detect leaks within the system. The pressure values at the inlet and outlet of the fuel cell are continuously recorded and displayed on the screen in real-time, allowing for ongoing monitoring. A drop in pressure indicates a leak in one of the three flow paths. Keller's pressure sensors have high accuracy, enabling them to detect leaks in even the smallest areas that are not sealed, ensuring the safe use of fuel cells. For more details, please refer to the related materials below.

Pressure