摘要
采用多压凝汽器是提高大型火电机组经济性的重要手段。提出了多压凝汽器的优化模型,用于计算多压凝汽器热经济性指标,完善了电站热力系统性能分析方法。分析了在凝汽器最小传热温差不变的情况下,采用多压凝汽器后传热面积的变化规律,并以实例说明这一方法。
Adoption of multiple pressure condensers is an important way of raising the economic performance of fossil fired power units. An optimization model for multiple pressure condensers is proposed and formula for calculating the efficiency indices are deduced, herewith perfecting the way of analyzing the performance of thermal systems of power plants. Changes in the required heat transfer surface area, by adopting multiple pressure condensers, are calculated under the assumed precondition, that the minimal heat transfer temperature difference remains the same; an actual example is moreover presented for explaining how the method is to be used. Figs g and refs 3.
出处
《动力工程》
EI
CAS
CSCD
北大核心
2007年第2期251-253,共3页
Power Engineering
基金
河南省自然科学基金项目
河南省高校青年骨干教师资助计划项目
关键词
动力机械工程
多压凝汽器
优化模型
热力性能
计算
power and mechanical engineering
multiple pressure condenser
optimization model
thermal performance
calculation
