Harmonic Adsorption Recuperative Power System turns heat into seriously efficient power
(Video 1:01 Minutes)
Sponsored by the DOE’s Geothermal Technologies Office, Pacific Northwest National Laboratory (PNNL) in Washington State, USA “rewrote the book” on the operation of Organic Rankine cycle (ORC) systems in an effort to make a transformational advance in the technology and its use within the geothermal industry. The PNNL-developed system—the Harmonic Adsorption Recuperative Power System (HARP)—uses a novel approach that eliminates the need for the evaporator, high pressure pump, and condenser in ORC systems.
Conventional ORC systems work by transferring heat to a working fluid until it vaporizes at a constant pressure. The high-pressure vapor is passed through a turbine, or other engine, that produces electricity. The vapor is then condensed back to a liquid and recycled using an electric powered pump. The HARP cycle scraps all those components and substitutes a patented multi-bed heat engine architecture and a specially formulated metal organic framework (MOF) sorbent to drive the engine.
Sponsored by the DOE’s Geothermal Technologies Office, Pacific Northwest National Laboratory (PNNL) in Washington State, USA “rewrote the book” on the operation of Organic Rankine cycle (ORC) systems in an effort to make a transformational advance in the technology and its use within the geothermal industry. The PNNL-developed system—the Harmonic Adsorption Recuperative Power System (HARP)—uses a novel approach that eliminates the need for the evaporator, high pressure pump, and condenser in ORC systems.
Conventional ORC systems work by transferring heat to a working fluid until it vaporizes at a constant pressure. The high-pressure vapor is passed through a turbine, or other engine, that produces electricity. The vapor is then condensed back to a liquid and recycled using an electric powered pump. The HARP cycle scraps all those components and substitutes a patented multi-bed heat engine architecture and a specially formulated metal organic framework (MOF) sorbent to drive the engine.