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工业低温余热回收利用研究进展

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工业生产过程中产生的大量低温余热通过烟气、冷却介质等形式散发到环境中,将这些热能回收利用对提高能源利用率、促进实现"双碳"目标具有重要作用.文章通过详细回顾现有工厂利用低温余热的案例,对比不同热源条件下的换热方案及节能效果,得出低温余热具有余热制热、原材料预热及防冻、余热制冷、余热发电等广泛用途;指出在利用低温余热资源时,应重点关注热源的特点及工厂需求等方面,选择与企业适配的余热利用方式;并对低温余热在节能减排中发挥的重要作用提出展望.
Research progress in recovery and utilization of low-temperature industrial waste heat
A large amount of low-temperature waste heat generated in the industrial production process dissipates in the atmosphere through flue gas and cooling media.Recovering and utilizing such heat is of a great significance for improving energy efficiency and promoting the achievement of"dual carbon"goals.With a detailed review of cases of utilization of low-temperature waste heat by existing factories,this paper compares heat exchange schemes and energy conservation effects under different heat source conditions,deriving that low-temperature waste heat has a wide range of applications from waste heat heating,raw material pre-heating and anti-freezing,waste heat refrigeration to waste heat power generation.It is pointed out that when utilizing low-temperature waste heat resources,attention should be paid to heat source characteristics and factory needs and utilization approaches adapted to enterprises should be selected.Further,this paper also presents a prospect of the important effect of low-temperature waste heat in energy conservation and emission reduction.

energy conservation and emission reductionlow-temperature industrial waste heatwaste heat-based heat supplywaste heat refrigerationlow-temperature waste heat power generation

吴维成、谷志卿、鞠朋、彭贝贝、张静

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沈阳工程学院 碳达峰碳中和研究院,辽宁 沈阳 110136

辽宁石油化工大学 石油化工学院,辽宁 抚顺 113005

南京理工大学 新能源学院,江苏 南京 210000

节能减排 工业低温余热 余热供暖 余热制冷 低温余热发电

辽宁省科技厅应用基础研究计划辽宁省教育厅重点攻关项目

2022JH2/101300122LJKZZ20220142

2024

可再生能源
辽宁省能源研究所　中国农村能源行业协会　中国资源综合利用协会可再生能源专委会　中国生物质能技术开发中心　辽宁省太阳能学会

可再生能源

CSTPCD北大核心
影响因子：0.605
ISSN：1671-5292
年,卷(期)：2024.42(8)