Analysis of the Influence of Heater Terminal Temperature Difference on the Cycle Thermal Efficiency

摘要

Heater terminal temperature difference is one of important equipment of thermal system, the influence of terminal temperature difference on thermal economy is great. The accurate calculation of terminal temperature difference influence on thermal economy is helpful to thermal system design, operation and maintenance work. This article took a 300MW steam turbine as an example, adopted the equivalent heat drop method to calculate various levels heaters terminal temperature difference influence on the live steam work load, circulation heat and cycle thermal efficiency.