[ gas cooling ]
Compressed Gas , Liquid Hydrogen and Multi-Modal Hydrogen Refuelling Station Layouts
Low pressure hydrogen storage or onsite hydrogen generation |
Intermediate or high-pressure hydrogen gas storage |
Hydrogen chiller unit |
Dispenser |
Compressor |
Gas dispense modulator |
Hydrogen fuelled vehicle ( fuel cell or ICE ) with compressed gaseous hydrogen storage on board |
Liquid hydrogen pump to 450 or 800 bar |
Liquid hydrogen vaporiser
LH 2
-253 ° C
Liquid hydrogen delivery |
Liquid hydrogen storage |
Liquid hydrogen flow regulation |
Hydrogen fuelled vehicle ( fuel cell or ICE ) with liquid hydrogen storage on board |
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© 2023 sbh4 GmbH |
Hydrogen gas cooling equipment for refuelling stations
Why do some gases get hot and others get cold as their pressure is reduced ? And why does the same gas get cold when expanding within a certain pressure range but get hot when expanding over a different pressure range ? The answers lie in the Joule-Thomson effect . This thermodynamic principle can be used to liquefy natural gas to make LNG for storage and transportation . The Joule-Thomson effect is the science behind the need to cool compressed gaseous hydrogen prior to it being filled into the storage tank for hydrogen mobility applications in shipping , aviation and on land .
By Stephen B . Harrison , sbh4 consulting
Gas cylinders for hydrogen mobility
Storage of hydrogen as a compressed gas is essential for hydrogen mobility applications and the distribution of hydrogen on the roads . Robust gas cylinders are required to safely contain the hydrogen .
When designing a passenger car , space is at a premium , and a good driving range is also expected . Therefore , high-pressure storage of hydrogen is required , and the standard pressure onboard for a full tank is 700 bar .
44 Hydrogen Tech World | Issue 16 | June 2024