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Energy saving and emission reduction of China's urban district heating

机译:中国城市集中供热节能减排

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摘要

China's carbon dioxide (CO_2) emission ranks highest in the world. China is committed to reduce its CO_2 emission by 40% to 45% from the 2005 levels by 2020. To fulfill the target, China's CO_2 emission reduction must exceed 6995 million tons. Energy consumption and CO_2 emission of China's urban district heating (UDH) are increasing. The current policy implemented to improve UDH focuses on replacing coal with natural gas to reduce energy consumption and CO_2 emission to some extent. This paper proposes that heat pump heating (HPH) could serve as a replacement for UDH to help realize energy-saving and emission-reduction goals to a greater extent. The paper also analyzes the impact of this replacement on the heating and power generation sectors. The results show that replacing coal-based UDH with HPH decreases energy consumption and CO_2 emission by 43% in the heating sector. In the power generation sector, the efficiency of power generation at the valley electricity time increases by 0.512%, and the ratio of peak-valley difference decreases by 16.5%. The decreases in CO_2 emission from the heating and power generation sectors cumulatively account for 5.55% of China's total CO_2 emission reduction target in 2020.
机译:中国的二氧化碳(CO_2)排放量居世界首位。中国承诺到2020年将其CO_2排放量比2005年的水平减少40%至45%。为实现这一目标,中国的CO_2排放量必须超过99.95亿吨。中国城市供热(UDH)的能源消耗和CO_2排放量正在增加。当前为改善UDH而执行的政策着重于用天然气替代煤炭以在一定程度上减少能源消耗和CO_2排放。本文提出,热泵加热(HPH)可以替代UDH,以最大程度地实现节能减排目标。本文还分析了这种替代对供热和发电部门的影响。结果表明,在热力行业中,用HPH替代煤基UDH可使能源消耗和CO_2排放降低43%。在发电领域,谷底用电时间的发电效率提高了0.512%,峰谷差比降低了16.5%。供热和发电行业减少的CO_2排放量累计占2020年中国CO_2减排总目标的5.55%。

著录项

  • 来源
    《Energy Policy》 |2013年第4期|677-682|共6页
  • 作者单位

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China,Beijing Engineering Research Center for Energy Saving and Environmental Protection, Beijing W0083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China,Beijing Engineering Research Center for Energy Saving and Environmental Protection, Beijing W0083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China;

    School of Mechanical Engineering, University of Science and Technology Beijing. Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    urban district heating; energy consumption; CO_2 emission;

    机译:市区供热;能源消耗;CO_2排放;

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