Optimization and uncertainty analysis of Co-combustion ratios in a semi-isolated green energy combined cooling, heating, and power system (SIGE-CCHP)

Jie Ji, Wenchao Wen, Yingqi Xie, Aoyun Xia, Wenjie Wang, Jinbo Xie, Qingyuan Yin, Mengyu Ma, Hui Huang, Xiaolong Huang, Chu Zhang and Yaodong Wang

Energy, 2024, vol. 302, issue C

Abstract: This study delved into the integration of biomass gas and natural gas within a Combined Cooling, Heating, and Power (CCHP) system. A Semi-Isolated Green Energy CCHP (SIGE-CCHP) model was devised to scrutinize the performance of co-firing equipment across diverse optimization objectives, while manipulating the proportions of natural gas and biomass gas as inputs. Findings revealed that escalating the share of biomass gas led to a reduction in carbon emissions but triggered an escalation in operational and maintenance costs. However, at an optimal mixing ratio of 1:1, carbon emissions exhibited marginal increments, coupled with a substantial decrease in operational and maintenance expenses. Notably, when prioritizing operational and maintenance costs, the system exhibited optimal performance, resulting in a notable 26.76 % cost reduction. Conversely, when prioritizing carbon emissions, the system metamorphosed into a carbon sequestration entity, with a maximal capacity to absorb 2021.86 kg of carbon dioxide. This study furnishes theoretical underpinnings for optimizing the operation of co-firing equipment, augmented by a sensitivity analysis aimed at intuitively elucidating the repercussions of varying mixing ratios on the system.

Keywords: SIGE-CCHP; Biomass gas; Mixed burning of natural gas; Operation and maintenance costs; Carbon emissions; Sensitivity analysis (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:302:y:2024:i:c:s0360544224015573

DOI: 10.1016/j.energy.2024.131784

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