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作 者:吕博文 LYU Bowen(The University of Edinburgh,Edinburgh EH89YL,Scotland,UK)
出 处:《能源与节能》2024年第1期58-62,共5页Energy and Energy Conservation
摘 要:随着全球变暖的日益加剧,减少温室气体的排放越来越受到社会的广泛关注,其中畜牧业畜禽粪污染物是主要来源之一。为了更加清洁有效地处理畜禽粪,利用植物与畜禽粪进行混合的生物质燃料进行燃烧发电,在减少温室气体排放的同时,将其热值进行二次利用发电。在不同蒸发温度下分别设计了以环己烷为有机工质的有机朗肯循环锅炉蒸发面积,并结合热力性能与成本得到最优工作区间。同时,通过对4种复混生物质燃料进行计算,得到不同热值的燃料对粪便处理速度的影响。研究表明,系统的输出功率和效率随蒸发温度的升高而升高,并且最优的蒸发温度区间为250~260℃。在燃料选择方面,在锅炉额定热功率一定的情况下,选择果树残枝与动物粪便混合制成的复混生物质燃料的性价比更高。With the increasing severity of global warming,reducing greenhouse gas emissions has received widespread attention from society,among which livestock manure pollutants are one of the main sources.In order to process livestock and poultry manure more cleanly and effectively,biomass fuel mixed with plants and livestock and poultry manure is used for combustion and power generation.While reducing greenhouse gas emissions,its calorific value is reused for power generation.Organic Rankine cycle boilers with cyclohexane as the organic working fluid were designed for different evaporation temperatures,and the optimal operating range was obtained by combining thermal performance and cost.Meanwhile,by calculating four types of mixed biomass fuels,the impact of fuels with different calorific values on the speed of fecal treatment was obtained.Research has shown that the output power and efficiency of the system increase with the increase of evaporation temperature,and the optimal evaporation temperature range is 250-260℃.In terms of fuel selection,when the rated thermal power of the boiler is constant,choosing a compound biomass fuel made by mixing fruit tree residues with animal manure has a higher cost-effectiveness.
分 类 号:TK12[动力工程及工程热物理—工程热物理] TK6[动力工程及工程热物理—热能工程]
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