Modelling and simulation of H2-blended NG powered SOFC for heat and power generation applications

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2025-04-10 DOI:10.1016/j.apenergy.2025.125867

Seema Bharati , B. Sai Mukesh Reddy , Subodh Purohit , Ibha Kalita , Dadasaheb J. Shendage , Pankaj Tiwari , Senthilmurugan Subbiah

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Abstract

This study presents a detailed modelling and simulation of a Solid Oxide Fuel Cell (SOFC) system powered by hydrogen (H₂) blended with natural gas (NG). The model, validated with experimental data from pure NG operation, predicts system performance with an average error of 1.46 %. Simulations were conducted for two cases of hydrogen blending: before and after the reformer. A 5 % by volume H₂ blend before the reformer increases power generation by 0.9 – 1 % and thermal output by 0.15 %, while post-reformer blending results in a 1.5 – 3 % increase in power generation and a 1.4 % rise in thermal output along with reduced CO₂ emission.

The study includes a techno-economic analysis examining the feasibility of blending hydrogen with natural gas in SOFC systems. This analysis assesses both blending strategies' cost implications and potential benefits, providing insights into the economic viability of integrating hydrogen into natural gas for SOFC use. According to the simulation results, to align the energy cost of an SOFC system using pure NG, the hydrogen price should be 0.096 USD/kg. With the SOFC system costing 6015 USD for a 1.5 kW setup, the price of NG per kg ranges from 0.14 to 1.20 USD, resulting in electricity costs between 0.11 and 0.36 USD per kWh. Given the anticipated NG market price in 2024 of 0.89 USD/kg, the estimated power cost is 0.37 USD per kWh, which remains higher than the electricity cost from a diesel generator.

In conclusion, this work highlights the potential of H₂ blending to improve SOFC performance and provides a framework for further research in sustainable energy technologies.

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.