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Performance evaluation of an SOFC-ICE hybrid system with pre-compressor cooling and dual-fuel injection for enhanced efficiency in renewable energy applications

Author

Listed:
  • He, Mingyue
  • Liu, Ning
  • Kong, Guofang

Abstract

The research study examines how a combined Solid Oxide Fuel Cell (SOFC)-Internal Combustion Engine (ICE) system with pre-compressor cooling and dual-fuel injection performs for improved energy efficiency and emission reduction in renewable energy applications. The research study evaluates these effects through a validated mathematical model by analyzing pre-compressor cooling that enhances charge density through temperature reduction and dual-fuel injection with hydrogen mixtures in combustion processes. The research study examines different operating conditions through tests of three key metrics including fuel usage along with power generation output and nitrogen oxide (NOx) emission rates. The study reveals improved thermal and exergy efficiency measures comparable to those achieved through exhaust gas recirculation (EGR) for emission reduction. When power distribution is balanced and fuel mixing is controlled, the system achieves maximum energy efficiency with minimized emissions. The research study reveals that combining SOFC with pre-compressor cooling and dual-fuel technologies provides an effective environmental solution that improves ICE technology and supports renewable energy and sustainability goals.

Suggested Citation

  • He, Mingyue & Liu, Ning & Kong, Guofang, 2025. "Performance evaluation of an SOFC-ICE hybrid system with pre-compressor cooling and dual-fuel injection for enhanced efficiency in renewable energy applications," Renewable Energy, Elsevier, vol. 255(C).
    • Handle: RePEc:eee:renene:v:255:y:2025:i:c:s096014812501465x
    DOI: 10.1016/j.renene.2025.123801
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    References listed on IDEAS

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