REVIVE GASEOUS HYDROGEN STORAGE-HYDROSTATIC PRESSURE RETAINMENT

Efficient and innovative method of hydrogen storage
for automotive fuel cell application is to compress
hydrogen in minute hollow spherical bubbles
incorporating the Hydrostatic Pressure Retainment
(HPR) technology.

A HPR vessel involves compressing hydrogen gas
within small spherical bubbles. The bubbles are
arranged within a solid mass similar to a foam-like
structure. By compressing the gas within the small
bubbles, a near- hydrostatic (tri-axial) tension is
induced in the structural material between the
adjacent bubbles.

In a HPR vessel, the material properties and the
inner matrix structure are two critical design
parameters that determine the hydrogen mass
efficiency. The focus of this study is devoted to
investigating the performance characteristics of one
configuration; spherically shaped bubbles
homogenously arranged in a simple cubic inner matrix
packing structure for a HPR vessel, using Finite
Element Analysis.

HPR vessels are safer than cylindrical pressure
vessels, potential for higher mass efficiencies and
can assume confirmable vessel shapes to fit within
available space.

Autorentext

b.17 March 1981, had education in Mechanical Engineering atNational Institute of Technology, warangal in India. He did hismasters in Ohio University where his research was devoted tohydrogen storage in foam structures. Since 2005, he works as anEngineer in mechanical automation industry.

Klappentext

Efficient and innovative method of hydrogen storage for automotive fuel cell application is to compress hydrogen in minute hollow spherical bubbles incorporating the Hydrostatic Pressure Retainment (HPR) technology. A HPR vessel involves compressing hydrogen gas within small spherical bubbles. The bubbles are arranged within a solid mass similar to a foam-like structure. By compressing the gas within the small bubbles, a near- hydrostatic (tri-axial) tension is induced in the structural material between the adjacent bubbles. In a HPR vessel, the material properties and the inner matrix structure are two critical design parameters that determine the hydrogen mass efficiency. The focus of this study is devoted to investigating the performance characteristics of one configuration; spherically shaped bubbles homogenously arranged in a simple cubic inner matrix packing structure for a HPR vessel, using Finite Element Analysis. HPR vessels are safer than cylindrical pressure vessels, potential for higher mass efficiencies and can assume confirmable vessel shapes to fit within available space.