Working fluid comprising a fluorinated ketone for an ORC process, and ORC apparatus

US8245512B2 · kind B2 · utility

Assignee

• SOLVAY FLUOR GMBH · DE

Inventors

• Martin Schwiegel · Cologne, DE
• Felix Flohr · Hildesheim, DE
• Christoph Meurer · Hannover, DE

Key dates

• Filing date: Mar 11, 2011
• Grant date: Aug 21, 2012
• Expiry date: Mar 11, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01K25/08
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Use of working fluids for energy conversion in a thermal Organic Rankine Cycle (ORC) process for combined generation of electrical and heat energy. The heat source used in the ORC process is in particular thermal water. The working fluids used in the ORC process are partially or perfluorinated hydrocarbons and/or partially or perfluorinated polyethers and/or partially or perfluorinated ketones. In some embodiments, the working fluid used is a combination of 1,1,1,3,3-pentafluorobutane and a fluorinated polyether having a molecular weight of 340 and a boiling point of 57° C. at 101.3 kPa, or a combination of 1,1,1,3,3-pentafluorobutane and at least one partially or perfluorinated ketone.