Thermodynamics analysis of a biomass co-gasification based combined cooling, heating and power system

Zhiqiang Yin, Jinyu Yang, Yingsong Feng, Zherui Ma, Jiangjiang Wang and Qibin Liu

Renewable Energy, 2025, vol. 248, issue C

Abstract: A novel biomass co-gasification-based combined cooling, heating, and power (CCHP) system was proposed. Integrating biomass co-gasification, solid oxide fuel cells (SOFC), supercritical CO2 (sCO2) Brayton cycles, and double-effect absorption refrigeration systems (DEARS) for the first time. The integration of biomass co-gasification with SOFC, sCO2 and DEARS present several challenges, particularly in modeling and optimization due to the complexity of co-gasification reactions, which make it difficult to accurately predict system performance using traditional methods. To address this, a data-driven model is employed to precisely predict the gasification reactions. The integration of efficient sCO2 and DEARS technologies optimizes waste heat utilization, significantly enhancing overall system performance. The results demonstrate a substantial improvements over traditional biomass-driven CCHP systems, achieving a power generation efficiency of 69.33 %, with energy utilization and exergy efficiencies improved by 20.93 % and 1.06 %, respectively. Parametric optimization identified the optimal operating conditions—palm leaf content (20 %), gasification temperature (1000 °C), and equivalence ratio (0.3), further enhancing energy output and thermodynamic performance. This study not only bridges the research gap in integrating biomass co-gasification with SOFC, sCO2, and DEARS technologies, but also provides important theoretical and technical support for the design of biomass-driven polygeneration systems.

Keywords: Co-gasification; Solid oxide fuel cell (SOFC); Supercritical CO2 brayton cycle(sCO2); Data-driven modeling; Thermodynamic performance optimization (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148125008572
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:248:y:2025:i:c:s0960148125008572

DOI: 10.1016/j.renene.2025.123195

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().