I need to define the hydrogen storage cost as a function of the hydrogen storage capacity ?
thank you for your help
best regards
The cost will depend on the pressure of the compressed H2 gas in the storage tank. There are tanks designed for 350 bars pressure and some tanks are designed for 700 bars pressure. The tanks could be type III o type IV . For type III tanks, the liner is metal and in type IV the liner is a polymeric material. The outer shell is carbon fibers.
In summary, the cost will include the pumping pressure (i.e., electric power consumption in the compressor) plus the cost of the storage tank itself (which is dependent of the type of he tank).
Hope this helps answer your question.
Professor Yehia Khalil, Yale University, USA
Fellow of the University of Oxford, UK
To follow up with Prof. Khalil's response, if you are storing the hydrogen in a compound alloy, then the cost would include the cost of compression, storage tank cost, the raw material cost and processing cost.
If the hydrogen is stored as a liquid, one could theoretically calculate the energy requirement per unit mass of liquid hydrogen. The operational cost would then be based on the cost of electricity. The capital cost would be determined by the cost of container and cost of the mechanical system.
Best,
Subramanian Ramachandran, School of STEM, University of Washington Bothell
Dear Subramanian Ramachandran, Yehia F. Khalil
Thank you for your responses, I'm looking for documents that could help me to relate the investment cost of the hydrogen storage to its capacity, so the data I need is the cost of hydrogen storage for different capacities so I can make a correlation between the two parameters. do you have documents ?
Thank you
Best regards
Achour HADJAR, sturdent in chemical engineering, Pierre et Marie Curie University, France.
Hi Achour,
Sorry! I don't know of a single reference article which discusses storage property and cost. International Journal of Hydrogen Energy might have articles on this question.
How much H2 do you intend to store? Storing large amounts of in steel tank is not really very practical. a tank for a modest amount of H2 (1MMSCF) in a 1000 PSIG vessel tank would probably cost around $200,000 and H2 is also able to diffuse through practically any material you make the tank out I would expect significant losses (~2%/day) for a typical stainless steal tank.
In a H2 pipeline application if there is a need to store H2 it is usually cooled to very low temperatures and stored as a liquid. This also usually quite an expensive option but losses can be minimized by using this approach.
If H2 is overproduced in an oil refinerythe most economical option is usually to reduce natural gas feed to the H2 plant and recycle the excess H2 back to H2 plant feed. However most refinery control systems that I have seen are set up to burn excess H2 production as fuel gas.
If you are planning to use a large amount of H2 it is probably better to produce the H2 as you use it.
The DOE has done some work in this area. I have attached a link
Dear Rick Manner.
My purpose is to is to integrate the hydrogen energy carrier in a multi-energy system with hydrogen storage that meets the energy demand of a village. I think large amount of H2 is stored is such system .
Have you attached the link for the DOE ?
Thank you
Hi,
Here is a link for a US DOE report based one of our previous work. https://www.eecbg.energy.gov/hydrogenandfuelcells/pdfs/28890rr.pdf
It is not a complete analysis of every means to generate and store hydrogen, but looks at one particular method.
Subramanian
Here is the link I forgot to attach to my last reponse. Large amounts of H2 storage is probably not tje most economical or safe option for supplying H2 to a Village. Small amounts of storage may be necessary but excess capacity and recycle of product to feed of an SMR or ATR (Steam Methane Reformer or Autothermal Reformer) is a more practicle way
H2 is a very dangerous substance that will permeat through almost and material used to store it. It is probably a better solution to build excess capacity for peak capacity and modest abounts of storage combined with produce recyce to feed.
I have also attached a link describing the worlds current largest H2 pipeline operated in the US gulf coast by Air Products,
https://energy.gov/eere/fuelcells/hydrogen-storage
The cost for storage hydrogen in a tank, generally Type IV tanks depends on number of factors like mass and cost of polymer line, carbon fibre composite, metal boss, resin etc. But in Type IV tank, the main cost of hydrogen storage depends on carbon-fibre composite material, weight that means thickness of wall of composite tank and type of carbon fibre used.
The all theses factors related to hydrogen storage capacity and which is directly related to cost. If we want more hydrogen in less volume, then the wall of tank must be robust that means more thicker or optimized thickness, then more weight of material of wall therefore the cost also increases.
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