Patent · US Active

Turbine inlet condition controlled organic rankine cycle

US8813498B2 · kind B2 · utility

5Cited by

16References

15Claims

0Family size

Assignee

General Electric Company · US

Inventors

Herbert Kopecek · Tirol, AT
Gabor Ast · Munich, DE
Thomas Johannes Frey · Bad Abbach, DE
Pierre Sebastien Huck · Munich, DE

Key dates

Filing date	Jun 18, 2010
Grant date	Aug 26, 2014
Priority date	—
Expiry date	Mar 14, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF22G5/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pressure sensor measures an organic Rankine cycle (ORC) working fluid pressure in front of a radial inflow turbine, while a temperature sensor measures an ORC working fluid temperature in front of the radial inflow turbine. A controller responsive to algorithmic software determines a superheated temperature of the working fluid in front of the radial inflow turbine based on the measured working fluid pressure and the measured working fluid temperature. The controller then manipulates the speed of a working fluid pump, the pitch of turbine variable inlet guide vanes when present, and combinations thereof, in response to the determined superheated temperature to maintain the superheated temperature of the ORC working fluid in front of the radial inflow turbine close to a predefined set point. The superheated temperature can thus be maintained in the absence of sensors other than pressure and temperature sensors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.