Michael E Crouse

US Patent:

61993824, Mar 13, 2001

Filed:

Nov 23, 1999

Appl. No.:

9/447612

Inventors:

Jeremy L. Walter - State College PA
Robert W. Royer - State College PA
Michael E. Crouse - State College PA

Assignee:

Penn State Research Foundation - University Park PA

International Classification:

F01K 1302

US Classification:

60646

Abstract:

The present invention is a dynamic condensate system which can replace the hotwell designs currently available. The dynamic condensate system enhances the performance of a compact closed Rankine-cycle or similar engine using a single small-volume apparatus which actively separates noncondensables from the subcooled condensate; lowers condenser pressure; boosts feed-pump inlet pressure; allows the hotwell volume to remain at ambient pressure; and eliminates lateral acceleration effects on the engine. The dynamic condensate system includes a liquid ring pumping element and a side-branch hotwell. There is an inlet to the liquid ring pumping element from a condenser of the engine for receiving liquid and vapor flow. An outlet from the liquid ring pumping element provides a flow path for liquid from the dynamic condensate system to a feed pump of the engine. A discharge port from the liquid ring pumping element provides a flow path to the side-branch hotwell to remove vapor from the liquid and vapor flow from the condenser.