摘要
富氢燃气将成为双碳时代低碳或零碳社会发展的重要着力点,其燃料掺混与冷凝增效的综合节能降碳潜力可达10%~30%。以燃气冷凝换热系统构建为突破口,通过数据分析发现传统冷凝换热拟合关联式误差来源,通过实验研究揭示富氢燃气锅炉燃烧后烟气中水蒸气冷凝换热过程中蒸发冷凝多因素耦合转移交互作用机制,首次提出多参数冷凝换热装置显热与潜热强化换热数学关联式,并在此基础上提出冷凝换热装置的微元迭代数字设计优化方法,首次实现冷凝换热器数字化精确设计,直接支撑双碳时代富氢燃气锅炉余热冷凝回收节能降碳10%左右的目标。
Hydrogen-rich gas will be an essential point of low-carbon or zero carbon social development in the dual carbon era,whose comprehensive energy saving and carbon reduction potential can reach 10%~30%.The construction of condensation heat exchange system as a break through has been taken,the error source of traditional condensation heat exchange fitting correlation has been found through data analysis,and the interaction mechanism of evaporation condensation multi-factor coupling transfer in the process of steam condensation heat transfer in flue gas after combustion of hydrogen-rich gas-fired boiler has been revealed through experimental research.The mathematical correlation of sensible heat and latent heat enhancement of multi-parameter condensation heat exchanger was proposed for the first time.On this basis,the infinitesimal element iteration digital design optimization method of the condensation heat exchanger was presented,and the digital accurate design of the condensation heat exchanger was realized for the first time,which directly supports the energy saving and carbon reduction of 10%for the waste heat condensation recovery of hydrogen-rich gas-fired boilers in the dual carbon era.
作者
邓世丰
乐明
邵怀爽
赵钦新
DENG Shifeng;LE Ming;SHAO Huaishuang;ZHAO Qinxin(School of Energy and Power Engineering of Xi′an Jiaotong University,Xi′an 710049,Shaanxi,China)
出处
《工业锅炉》
2023年第1期1-9,共9页
Industrial Boilers
基金
国家自然基金(51876165)
西安市科技创新计划项目(2019221115KYPT002JC004)。
关键词
富氢燃气
冷凝换热系统
冷凝换热关联式
微元迭代法
hydrogen-rich gas
condensation heat exchange system
condensation heat transfer correlation
infinitesimal element iteration
