摘要
针对排汽压力变化对机组经济性的影响，提出一种新的定量方法 —— 排汽压力等效热降计算法。该方法以汽轮机变工况为基础，应用等效热降的理论确定排汽压力变化对机组经济性的定量影响。实例计算表明，该方法简捷准确，实用性强，其计算误差小于工程上现有的计算方法。
With regard to the impact on machine unit economic performance of exhaust steam pressure variation a new quantitative method, i.e., exhaust pressure equivalent enthalpy drop calculation method, is expounded in this paper. On the basis of steam turbine off design operating conditions the proposed method determines the quantitative effect on machine unit economic performance of exhaust steam pressure variation by employing the theory of equivalent enthalpy drop. Calculation results of specific examples show that the method features simplicity of use as well as high precision and practicality. Its calculation error is lower than that of other currently available engineering methods.
出处
《热能动力工程》
CAS
CSCD
北大核心
1999年第5期353-355,共3页
Journal of Engineering for Thermal Energy and Power
关键词
排汽压力
定量方法
经济性
等效热降
汽轮机组
exhaust pressure, quantitative method, economy, equivalent enthalpy drop
