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Financial Impact of Good Condenser Vacuum in Industrial Steam Turbines: Computer Modeling Techniques
Industrial turbine throttle conditions are fixed by plant designs - materials of construction, steam requirements, etc. Condensing turbine exhaust conditions are limited by the atmosphere to which residual heat is rejected; and are fixed by installed condenser surface area and the steam space characteristics. Since the steam rate and shaft power costs are dependent on the available enthalpy drop across the machine, the steam must condense at the lowest practical thermal state. Thus, air presence and cooling rate must be controlled. The condensing turbine is not an isolated system. It directly affects the use of boiler fuel and the purchase of power. Its condensate requires reheating to feedwater temperature: steam is used, backpressure power is made, for example. Its performance affects the entire steam system and must be monitored persistently. Because of the complexities (and advantages) of systems analyses, computer modeling is demonstrated in this paper to fully evaluated the network effects and the financial impact of good condenser vacuum.
Viar, W. L. (1984). Financial Impact of Good Condenser Vacuum in Industrial Steam Turbines: Computer Modeling Techniques. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from