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Investigation of the Cofiring of Methane and Biosyngas for Combined Cooling, Heating, and Power Generation with Zero Carbon Dioxide Emissions
Author(s) -
Li Wenshu,
Shen Jianfei,
Zhang Ge
Publication year - 2017
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201700023
Subject(s) - methane , cofiring , exergy , combustion , carbon dioxide , carbon fibers , biomass (ecology) , environmental science , exergy efficiency , process engineering , electricity generation , chemistry , waste management , materials science , thermodynamics , power (physics) , engineering , organic chemistry , physics , composite number , composite material , oceanography , geology
A new chemical looping combustion (CLC) of biosyngas and methane in a system with combined cooling, heating, and power (CCHP) is presented. The aim of the integration of CLC into the CCHP system is to obtain zero CO 2 emissions and to reduce exergy destruction within the combustion process. With the increase in the biomass‐to‐methane mass ratio from 0 to 1 (referred to as 100 %), the total energy output increases from 637.17 to 746.62 kW, and there is a simultaneous reduction of both the energy and exergy efficiencies from 91.70 to 82.10 % and from 43.32 to 37.84 %, respectively. However, the primary energy savings ratio benefits from an increase of the biomass mass ratio (from 0 to 1) and increases from 42.80 to 46.36 %. Furthermore, a conventional CCHP system is developed and simulated for comparison. To discuss the feasibility of this process, the effect of the gas conversion ratio in the CLC system on the overall efficiency was analyzed and the autothermal operation strategy of CLC was considered.