中等规模燃气轮机联合循环经济性计算与市场前景分析

Analysis on Market Prospect and Calculation Economical Efficiency of Combined Cycle of Medium Scale Gas Turbine

为了改善大规模、分布式能源小规模燃气轮机存在的不足,笔者研究了中等规模燃气轮机及其联合循环机组,阐述了燃气轮机的基本原理,介绍了大、中、小3种规模燃气轮机的性能及建设投资规模等基本情况,比较分析了不同型号大规模、分布式能源小规模、中等规模燃气轮机的性能参数,以H100型燃气轮机为例,通过计算分析了中等规模燃气轮机联合循环机组的收益和联合循环供热运行机组的收益,结合市场匹配和需求情况,指出中等规模燃气轮机及其联合循环机组具有经济收益高、投资回收期短、初期投资相对较少、运行灵活、建设周期短、供热能力强、综合热效率高、对电网的影响和要求较小等优势,将成为燃气发电市场主力军。

In this paper,in order to improve existing shortcomings of small-scale gas turbines of large-scale and distributed energy,the authors studied medium-scale gas turbines and combined-cycle units,and expounded the basic principles of gas turbines.Then,the authors introduced scale of construction investment for large-scale,small scale and medium-scale gas turbines,and comparatively analyzed the performance parameters of different types of large-scale,distributed energy small-scale and medium-scale gas turbines.Thirdly,taking H100 type gas turbine as an example,the authors analyzed benefit of medium-scale gas turbines and combined-cycle units,and operation of heat addition units of combined cycle,and pointed out that medium-scale gas turbines and combined-cycle units have advantages of high economic benefit,short investment payoff period,lesser investment in initial stage,flexible operation,short construction cycle,strong heating capacity,high comprehensive thermal efficiency lesser effects and requirements to power grid,which may become main force of market of gas power generation.