Cascaded organic rankine cycles for waste heat utilization

Patent · Tue May 17 00:00:00 EDT 2011

OSTI ID:1018319

Radcliff, Thomas D ^[1]; Biederman, Bruce P ^[2]; Brasz, Joost J ^[3]

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1. Vernon, CT
2. West Hartford, CT
3. Fayetteville, NY

A pair of organic Rankine cycle systems (20, 25) are combined and their respective organic working fluids are chosen such that the organic working fluid of the first organic Rankine cycle is condensed at a condensation temperature that is well above the boiling point of the organic working fluid of the second organic Rankine style system, and a single common heat exchanger (23) is used for both the condenser of the first organic Rankine cycle system and the evaporator of the second organic Rankine cycle system. A preferred organic working fluid of the first system is toluene and that of the second organic working fluid is R245fa.

• Research Organization: UTC Power, LLC (South Windsor, CT)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC02-00CH11060
• Assignee: UTC Power, LLC (South Windsor, CT)
• Patent Number(s): 7,942,001
• Application Number: 11/886,281
• OSTI ID: 1018319
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY