Working pressure 3 energy storage tank

What is the burst pressure of a type III tank?

The results show that the actual burst pressure of a Type III tank of 48 L and 70 MPa at room temperature was 209.80 MPa, which had sufficient explosion-proof behavior. Compared with the room temperature, the critical failure pressure of the tank under fire conditions dropped sharply by ca. 63.1 %, which readily induced pressure-bearing failure.

What is a Type 3 tank?

The type 3 tank (Figure 1a), i.e., a high-pressure storage system with a hydrogen-tight metal liner and a load-bearing overwrap made of carbon fiber-reinforced plastic (CFRP) is spherical. Due to this shape, semi-finished products can be used for liner production, thus minimizing costs.

What is a type III hydrogen storage tank?

The main structure and technical parameters of the tanks are listed in Table 1. To meet the requirements of hydrogen storage density, lightweight, and high strength, Type III hydrogen storage tanks adopt 6061 aluminum liner, which is completely wrapped and wound by carbon fiber reinforced polymer (CFRP).

How much energy does a three-cascade storage system save?

The obtained results show that changing from one buffer to three tanks gives a total energy saving of approximate 34%. For the three-cascade storage system, the total energy consumption increases approximately linearly with the increase of the pressure of the high-pressure tank.

What factors determine the ultimate pressure-bearing capacity of a tank?

As mentioned, the ultimate pressure-bearing capacity of tanks is not only related to essential factors, such as nominal volume and design wall thickness, but also by external factors, such as the intensity of the fire source, combustion location, and the initial filling pressure.

What is a spherical high-pressure tank?

In the sub-project Mukran of the BMBF-funded flagship project TransHyDE, spherical and nearly spherical-shaped (isotensoids with short cylindrical spacer) high-pressure tanks are developed for hydrogen storage.