CAJ | 학술논문

褐煤属低质煤，其水分含量高、灰分高，直接燃烧发电效率低。为提高褐煤发电系统效率，该文介绍了高效褐煤发电系统，并且利用等效热降法对该系统进行理论分析和计算，同时对某600MW超临界工程案例进行技术经济对比分析。在该文所述的基准工况下，通过理论计算，该系统可以降低发电煤耗12g／（kW．h），经过技术经济性分析，该系统可以降低厂用电率0．56％，降低发电煤耗15g／（kw·h）以上，同时该系统还可以降低污染物排放、减少工程投资等。研究发现燃用高水分褐煤的火力发电厂，采用高效褐煤发电系统具有极大的优越性，其节能、节水、减排，是值得大力推广的“绿色”发电事业。
갈매속저질매，기수분함량고、회분고，직접연소발전효솔저。위제고갈매발전계통효솔，해문개소료고효갈매발전계통，병차이용등효열강법대해계통진행이론분석화계산，동시대모600MW초림계공정안례진행기술경제대비분석。재해문소술적기준공황하，통과이론계산，해계통가이강저발전매모12g／（kW．h），경과기술경제성분석，해계통가이강저엄용전솔0．56％，강저발전매모15g／（kw·h）이상，동시해계통환가이강저오염물배방、감소공정투자등。연구발현연용고수분갈매적화력발전엄，채용고효갈매발전계통구유겁대적우월성，기절능、절수、감배，시치득대력추엄적“록색”발전사업。
Lignite is a kind of low rank coal with high water and ash content, which has low power generation efficiency. In order to improve the efficiency of lignite-fried power system, efficient lignite-fired power system was introduced. Theoretical analysis and calculation were carried out on this system with equivalent heat drop method. Moreover, technical and economic comparison of a 600 MW supercritical power plant was carded out. Through theoretical calculation, this system can reduce power generating consumption rate 12 g/（kW.h） in the benchmark condition stated. Through technical economy analysis, the system can reduce the power system service consumption rate by 0.56% and power supplying consumption rate 15 g/（kW.h）. And at the same time, this system can also reduce pollutants and engineering investment et al. This study finds that burning high moisture content lignite with efficient lignite-fired power system is of great advantage.. This system is energy and water saving and pollutions reduction, which is popularized ＂green＂ lignite-fire power system.