京津冀地区天然气和热泵替代燃煤供暖研究

发布时间：2018-08-21 08:18

【摘要】：针对京津冀地区实施天然气和电能驱动空气源热泵(简称:热泵)替代燃煤(散烧煤和锅炉煤)供暖系统的一次能源效率、污染物减排量及经济性进行了对比计算.结果表明:对于京津冀地区,采用天然气和热泵替代燃煤供暖可使一次能源效率分别上升31%和44%;天然气和热泵供暖都可大幅降低污染物排放,天然气供暖可使烟尘、SO_2和NO_x分别减排7.46,33.26,8.06万t;热泵供暖则分别减排7.48,33.21,9.36万t;热泵供暖的初投资高于天然气供暖,但其年燃料费用远低于天然气供暖;此外,基于烟尘、SO_2、NO_x 3种污染物减排总量,计算得出天然气供暖改造的单位污染物减排成本较热泵供暖改造高14.2元/kg,综合对比发现,热泵供暖更具优势.
[Abstract]:The primary energy efficiency, pollutant emission reduction and economy of natural gas and electric energy driven air source heat pump (abbreviated as heat pump) instead of coal-fired (scattered coal and boiler coal) heating system in Beijing-Tianjin-Hebei area are compared and calculated. The results show that in the Beijing-Tianjin-Hebei region, the primary energy efficiency can be increased by 31% and 44% respectively by using natural gas and heat pump instead of coal-fired heating, while both natural gas and heat pump heating can greatly reduce pollutant emissions. Natural gas heating can reduce smoke emission of so _ 2 and NO_x by 7.46 and 33.26, and heat pump heating by 7.48, 33.21, 93600 tons respectively. The initial investment of heat pump heating is higher than that of natural gas heating, but its annual fuel cost is much lower than that of natural gas heating; in addition, the annual fuel cost of heat pump heating is much lower than that of natural gas heating. Based on the total emission reduction of three kinds of pollutants, the unit pollutant emission reduction cost of natural gas heating retrofit is 14. 2 yuan / kg higher than that of heat pump heating retrofit. The comprehensive comparison shows that heat pump heating has more advantages.
【作者单位】：华北电力大学热电生产过程污染物控制北京市重点实验室;
【基金】：国家自然科学基金资助项目(51706065,51476053) 中央高校基本科研业务费专项基金资助项目(2017MS013)
【分类号】：TU833;X51

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