Electrical method to increase power output by Improving condensation and flow of steam within the turbine neck and condenser of a steam turbine

摘要

The power output and energy conversion efficiency of a steam turbine depend upon the turbine backpressure, and backpressure is in turn strongly affected by pressure losses in the turbine neck. The gas phase of the wet steam flowing out of the turbine is supercooled and continues to condense on water drops present in the steam. Practically the entire liquid content of the turbine exhaust consists of relatively few large drops whose radius can exceed 0.001 cm (40 microinches). The surface area available for condensation is thereby small, and the internal condensation process within the turbine neck is larger than it would be if equilibrium were reached, and the power output of the turbine is decreased.