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EXERGY ANALYSIS OF HYDROGEN-BASED SYSTEMS USED IN URBAN AREA

Ion V. Ion, Gheorghe Lăzăroiu, Lucian Mihăescu, Rodica-Manuela Grigoriu

First published: 2025-08-15https://doi.org/10.5593/sgem2025/4.1/s16.11View metrics

Abstract

Hydrogen is considered the energy source which can ensure the global transition to sustainable low-carbon energy systems. Municipalities can become more eco-friendly by adopting and implementing hydrogen-based energy systems. At the beginning of the transition toward carbon neutrality, the municipalities can use the hydrogen mixed with natural gas in the existing natural gas network for food and domestic hot water preparation, and heating and electricity generation, and the hydrogen stored as compressed gas, cryo-compressed or liquid for urban transport fuelling. Authors performed an energy analysis of the main hydrogen applications in a city with 2160000 inhabitants, this study by completing with the exergy analysis. The analysis encompasses evaluation of exergy flows of the district heating system, individual heating system and public transport sector. The total yearly exergy consumption amounts to 8129-106kWh/year compared to of energy 7910-106 kWh/year.

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Publication details

Title
EXERGY ANALYSIS OF HYDROGEN-BASED SYSTEMS USED IN URBAN AREA
Authors
Ion V. Ion, Gheorghe Lăzăroiu, Lucian Mihăescu, Rodica-Manuela Grigoriu
Proceedings
25th International Multidisciplinary Scientific GeoConference Proceedings SGEM2025, Energy and Clean Technologies, Vol25, Issue 4.1
Publisher
STEF92 Technology
Year
2025
Pages
83-90
SWS Citekey
Ion2025168390
ISSN
1314-2704; 13142704
ISBN
9786197603835
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
References12
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