热力发电Issue(3)：76-80,5.DOI:10.3969/j.issn.1002-3364.2015.03.076
主蒸汽参数对煤耗率影响的计算模型比较
Influence of main steam parameters on coal consumption rates:calculation model comparison
摘要
Abstract
Main steam parameters will deviate from design values inevitably during actual operation of steam tur-bines,causing changes in unit power and economic indexes.Thus,the equivalent enthalpy drop method and partial differential method were applied to solve this problem.The advantages,disadvantages and application conditions of each method were compared.Moreover,by taking operation data of an N600-1 6.7 /537 /537-I type steam turbine as the example,models from the above two methods were validated.The results show that,both the models have accu-rate results,and are convenient,universal,suitable for practical engineering application.However,as the partial dif-ferential method makes certain assumptions on the premise,its calculation accuracy is not that high as the equivalent enthalpy drop method.关键词
燃煤机组/主蒸汽参数/热经济性/煤耗率/等效焓降法/偏微分法Key words
coal-fired power unit/main steam parameter/heat economy/coal consumption rate/equivalent enthalpy drop method/partial differential method分类
信息技术与安全科学引用本文复制引用
薛云灿,沙伟,蔡昌春,邓立华..主蒸汽参数对煤耗率影响的计算模型比较[J].热力发电,2015,(3):76-80,5.基金项目
国家自然科学基金 （）
