Key strategies of hydrogen energy systems for sustainability

Adnan Midilli*, Ibrahim Dincer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

135 Citations (Scopus)

Abstract

Here we conduct a parametric study to investigate the effects of hydrogen energy utilization on the global stability and sustainability. In this regard, in order to derive the hydrogen energy based sustainability ratio, the green energy based sustainability ratio, as developed earlier, is modified to come up with a new parameter, namely "hydrogen energy utilization ratio through non-fossil fuels". We take actual historical data from key sources to determine the role of hydrogen energy for sustainability and make some future projections as the road map for hydrogen economy. In addition, an illustrative example on the hydrogen energy based sustainability ratio is presented by considering green energy sources such as solar, wind, hydro and nuclear to make hydrogen economy more environmentally benign and sustainable. It is found that hydrogen energy based global stability and sustainability ratios increase with the rise of hydrogen energy utilization ratio. The best results for hydrogen energy based sustainability ratio are obtained for the highest hydrogen energy impact ratios between 73.33% and 100%. In case of 10% of hydrogen energy utilization ratio, hydrogen based sustainability ratios for year 2010 are, respectively, determined to be 0.21%, 0.23%, 0.25%, 0.27% and 0.29% in 2.92% of hydrogen based global stability ratio by depending on the hydrogen energy impact ratios (= 73.33 %, 80%, 86.67%, 93.33% and 100%). In case of 20% of hydrogen energy utilization ratio, the hydrogen energy based sustainability ratios are found to be 1.09%, 1.19%, 1.28%, 1.38% and 1.48% in 7.41%, respectively. The results are really encouraging in a way that hydrogen economy appears to be one of the most significant players for better sustainability.

Original languageEnglish
Pages (from-to)511-524
Number of pages14
JournalInternational Journal of Hydrogen Energy
Volume32
Issue number5
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Funding

The authors acknowledge the support provided by Nigde University in Turkey and the Natural Science and Engineering Research Council of Canada in Canada.

FundersFunder number
Nigde University in Turkey
Natural Sciences and Engineering Research Council of Canada

    Keywords

    • Global stability ratio
    • Green energy
    • Hydrogen
    • Hydrogen economy
    • Hydrogen energy system
    • Sustainability
    • Sustainability ratio

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