US Patent Issued on Sept. 8 for "Low-grade waste heat recovery system using stored hydropower" (Kentucky Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,633, issued on Sept. 8.

"Low-grade waste heat recovery system using stored hydropower" was invented by Dhaval T. Patel (Louisville, Ky.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A low-grade waste heat ("LGWH"), closed-circuit recovery system includes a storage chamber, a condenser, and a turbine. In the storage chamber, a working fluid, exposed to a waste heat source, is heated to vapor form and sent to a condenser at a higher elevation, where the working fluid is cooled. Upon condensation, the working fluid is dropped down onto a hydraulic turbine, the rotation of which generates power. The working fluid vapor can likewise cause rotation of a ...