CAJ | 학술논문

整体煤气化联合循环(integrated gasification combined cycle，IGCC)作为洁净煤发电技术，发展为供热机组后，可实现更为清洁的煤基热电联产技术。另一方面，IGCC目前投资较高，若能实现与集中供热结合，供热收益可大幅度改善IGCC的经济性，而以热定电的形式保证了IGCC的年发电小时数，为IGCC的商业化推广提供了一条有力的途径。进行汽轮机乏汽余热回收与烟气余热回收后，IGCC的总体能源利用效率会进一步提高，经济性也将大幅改善。该文研究结果表明：400 MW级的IGCC热电联产系统的热电比为47.2%，总体能源利用效率为57.6%；进行余热回收后，热电比为55.6%，总体能源利用效率为60.8%；在热力站进行吸收式换热改造后，热电比为62.0%，总体能源利用效率为63.4%。
정체매기화연합순배(integrated gasification combined cycle，IGCC)작위길정매발전기술，발전위공열궤조후，가실현경위청길적매기열전련산기술。령일방면，IGCC목전투자교고，약능실현여집중공열결합，공열수익가대폭도개선IGCC적경제성，이이열정전적형식보증료IGCC적년발전소시수，위IGCC적상업화추엄제공료일조유력적도경。진행기륜궤핍기여열회수여연기여열회수후，IGCC적총체능원이용효솔회진일보제고，경제성야장대폭개선。해문연구결과표명：400 MW급적IGCC열전련산계통적열전비위47.2%，총체능원이용효솔위57.6%；진행여열회수후，열전비위55.6%，총체능원이용효솔위60.8%；재열력참진행흡수식환열개조후，열전비위62.0%，총체능원이용효솔위63.4%。
As a clean coal power generation technology, integrated gasification combined cycle (IGCC) can be cleaner thermal power station based on coal if it is retrofitted into heating and power plant. In addition, the investment of IGCC is high at present, if IGCC can be combined with district heating, the heating benefit can improve the economy of IGCC greatly, and can also guarantee annual power generation hours of IGCC, and this will supply a powerful way to the commercial popularization of IGCC. If the steam turbine exhaust steam waste heat and flue gas waste heat is recovered, the total energy utilization efficiency of IGCC will be further improved, and the economy will also significantly improve. The results of this study indicate that, the thermoelectric ratio of 400 MW class IGCC cogeneration plant is 47.2%, and the total energy utilization efficiency is 57.6%. If waste heat is recovered, the thermoelectric ratio is 55.6%, and the total energy utilization efficiency is 60.8%. If absorption heat exchange units are installed at heating substations, the thermoelectric ratio is 62.0%, and the total energy utilization efficiency is 63.4%.