Journal article
Benjamin Kanz, Alessio Tafone, Balkumar Basant Kumar Pillai, Ovi Lian Ding, Tobias Massier and Harald Klein
In: Applied Thermal Engineering,
Elsevier,
August 2026
Abstract: Hydrogen is a key energy carrier in the transition toward low-carbon energy systems, with blue hydrogen representing an important bridging technology between gray and green hydrogen. This study presents, for the first time, a unified first-law Sankey-based framework combining rigorous reboiler modeling, thermodynamically consistent absorber-stripper column design, and …
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Journal article
Benjamin Kanz, Alessio Tafone, Laura Stops, Jun Onn Khor, Tobias Massier, Ovi Lian Ding and Harald Klein
In: International Journal of Hydrogen Energy,
Elsevier,
May 2026
Abstract: This study investigates the dynamic behavior of large-scale hydrogen liquefaction plants using mixed-refrigerant (MR) precooling to enhance operational flexibility for renewable energy integration. Hydrogen liquefaction is essential for hydrogen transport but remains energy-intensive. MR-precooled plants can significantly reduce energy consumption; yet, their dynamic …
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Journal article
Balkumar Basant Kumar Pillai, Benjamin Kanz, Alessio Tafone, Tobias Massier, Harald Klein and Ovi Lian Ding
In: Energy,
Elsevier,
April 2026
Abstract: Power plants are currently a major contributor to global CO2 emissions. Although renewable energy-based power generation is growing steadily, it is predicted that the role of natural gas combined cycle (NGCC) plants will continue to play a significant role in electricity production in the future. The use of post-combustion carbon capture technologies to reduce …
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Conference paper
Jonathan Poh, Alessandro Romagnoli, Jian Wei Mark Lim, Tobias Massier, Anurag Chidire, Wei Wu and Thomas Hamacher
In: Proceedings of the EGU General Assembly 2026,
EGU,
March 2026
Abstract: Singapore relies heavily on energy imports to sustain urban development and ensure energy security, given its absence of extractable natural resources. Currently, natural gas dominates the energy mix. Singapore is considering several clean energy pathways to decarbonise and diversify, including solar photovoltaics, clean energy imports from neighbouring countries, …
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Conference paper
Shiddalingeshwar Channabasappa Devihosur, Anđelka Kerekeš, Tobias Massier and Thomas Hamacher
In: Proceedings of the 2025 IEEE PES 17th Asia-Pacific Power and Energy Engineering Conference (APPEEC),
IEEE,
December 2025
Abstract: The final energy consumption of the transport sector of the Association of Southeast Asian Nations (ASEAN) has grown 1.96-fold since 2005. The continuation of historical trends is expected to result in a 2.6-fold increase by 2050 as compared to 2022. This paper analyses the future road transport energy demand of ASEAN by applying a bottom-up approach through the energy demand …
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Journal article
Alessio Tafone, Roberto Pili, Tobias Massier, Lizhong Yang and Harald Klein
In: Journal of Energy Storage,
Elsevier,
October 2025
Abstract: A liquid air energy storage (LAES) system is a promising Carnot battery configuration capable of efficiently recovering waste heat and cold energy carriers. Among these, liquid hydrogen (LH2) regasification presents a significant opportunity due to its high exergy content and its regasification temperature, which aligns well with the liquid air liquefaction process. …
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Journal article
Anurag Chidire, Ludwig Irrgang, Christopher Schifflechner, Tobias Massier and Alessandro Romagnoli
In: Renewable Energy,
Elsevier,
August 2025
Abstract: The rising demand for cooling poses significant environmental challenges, especially in regions relying on carbon-intensive grid electricity. In this study, a geothermal-driven combined cooling and power system (GCCPS) containing an absorption chiller (AC) and an organic Rankine cycle (ORC) for combined production of power and cooling is proposed. The system’s …
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Journal article
Benjamin Kanz, Alessio Tafone, Laura Stops, Tobias Massier and Harald Klein
In: International Journal of Hydrogen Energy,
Elsevier,
June 2025
Abstract: Liquid hydrogen (LH2) is a promising solution to transport green hydrogen to countries lacking domestic energy resources. One challenge in simulating the liquefaction process is the exothermic ortho-para conversion (OPC). Orthohydrogen is converted to parahydrogen during the process to prevent the liquid hydrogen from evaporating due to the exothermic conversion in …
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