节能2026，Vol.45Issue(2)：55-61,7.DOI:10.3969/j.issn.1004-7948.2026.02.012
基于流固耦合模拟的燃气灶极限热效率优化机制研究
Research on the optimization mechanism of the limiting thermal efficiency of gas stoves based on fluid-structure coupling simulation
摘要
Abstract
By using computational fluid dynamics(CFD)numerical simulation and heat transfer analysis methods,a systematic study is conducted on the mechanism by which the composite energy-absorbing disk enhances the limit thermal efficiency of the gas stove.The results show that increasing the number of layers of the energy-absorbing disk and filling it with aerogel can increase the thermal efficiency to around 78.5%.The structure increases the internal radiation heat resistance,reduces heat loss,and simultaneously raises the surface temperature on the upper part to enhance the radiation heat transfer at the bottom of the pot and reduces the excess air volume to increase the combustion temperature.However,structures with more than three layers tend to reach saturation due to diminishing marginal benefits,and the heat loss becomes dominated by solid heat conduction between stainless steel components.The bridge-type composite energy-absorbing disk,although able to eliminate radiation and direct heat conduction paths,causes a decrease in combustion temperature due to an increase in air volume,resulting in limited improvement in the overall thermal efficiency.Combining the bridge-type composite energy-absorbing disk with the oxygen control scheme can further enhance the thermal efficiency and reduce the air volume,and reducing the air volume can increase the flue gas temperature and the temperature difference between the flue gas and the grate,enhance the temperature of the upper wall of the energy-absorbing disk,and strengthen the radiation heat transfer at the bottom of the pot.关键词
家用燃气灶/极限热效率/复合聚能盘/辐射传热Key words
household gas stove/limit thermal efficiency/composite energy-absorbing disk/radiation heat transfer分类
能源科技引用本文复制引用
陈家威,林瑜,孟德奇,张怡雯,彭勃..基于流固耦合模拟的燃气灶极限热效率优化机制研究[J].节能,2026,45(2):55-61,7.基金项目
国家重点研发计划项目(项目编号:2024YFF1106105) （项目编号:2024YFF1106105）
粤港澳大湾区(佛山)先进制造业国家卓越工程师创新研究院"揭榜挂帅"项目(项目编号:JBGS2025007) （佛山）
