1372 Storage and Transport

Depending on the end use, hydrogen must be either compressed or liquefied prior to handling. Hydrogen compression is similar to natural gas but is energy intensive. It is frequently possible to use the same compressors with slight modifications. Small volume stationary storage is handled with above-ground tanks at 5 MPa. Bottle storage can also be used if the volume is sufficient. Alternative storage media are under development, including metal hydrides, iron oxides, and adsorption on carbon microfibers.

Compressed hydrogen is delivered in compressed tanks, currently via truck or train. Germany has developed several small-scale pipeline distribution networks for hydrogen that have operated without major incident for decades. A large-scale hydrogen pipeline network is in operation along the Texas Gulf Coast to supply refineries and chemical plants. Liquid hydrogen is distributed entirely by tank to date.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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