Why hydrogen is stored at high pressures when used for engines. Is it suitable for petrol engines or diesel engines or both. How to induct hydrogen into diesel engines. Is it possible to mix hydrogen with NH3. If so, How.
High pressures are required to liquify hydrogen. Fuel tanks, working on compressed hydrogen, are fabricated to withstand pressures of 350-700 bar.
The fuel tank itself is made of carbon fiber composites, metal alloys and composites. The inner line of the tank is a high-molecular weight polymer that serves as a hydrogen gas permeation barrier. The outer shell is placed on the tank for impact and damage resistance. A pressure regulator and an in-tank gas temperature sensor are located in the tank’s interior in order to monitor the pressure and temperature during the gas-filling process.
https://www.ieafuelcell.com/index.php?id=33
According to the US Office of Energy Efficiency and Renewable Energy, hydrogen storage is a key enabling technology for advancing hydrogen and fuel cell technologies in applications, including stationary power, portable power, and transportation. Hydrogen has the highest energy per mass of any fuel; however, its low ambient temperature density results in a low energy per unit volume, therefore requiring the development of advanced storage methods with the potential for higher energy density. Hydrogen can be stored physically as either a gas or a liquid. Storage of hydrogen as a gas typically requires high-pressure tanks (350–700 bar [5,000–10,000 psi] tank pressure). Storage of hydrogen as a liquid requires cryogenic temperatures because the boiling point of hydrogen at one-atmosphere pressure is −252.8°C. Hydrogen can also be stored on the surfaces of solids (by adsorption) or within solids (by absorption).
It is possible to store hydrogen in ammonia. Get a look on the work from GenCell
- Badges
- Science topic
- Similar topics
- Engineering
- Modeling