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Articles & Publications

May 7, 2018

ARPA-E’s impact assessment initiative documents the scientific and commercial successes achieved by a selection of ARPA-E-funded projects. The third installment of this series, “ARPA-E Impacts: A Sampling of Project Outcomes, Volume III” provides a glimpse into the diverse and sophisticated research portfolio of advanced energy technologies that will enable the United States to tackle our most pressing energy challenges.

March 13, 2018

Recent advances in wide band-gap (WBG) semiconductor materials, such as silicon carbide (SiC) and gallium nitride (GaN) are enabling a new generation of power semiconductor devices that far exceed the performance of silicon-based devices. Past ARPA-E programs (ADEPT, Solar ADEPT, and SWITCHES) have enabled innovations throughout the power electronics value chain, especially in the area of WBG semiconductors.

February 7, 2018

Additive manufacturing enables new approaches to chemical reactor design due to the ability to build complex geometries and topologies inaccessible to traditional manufacturing technologies.

December 18, 2017

In this Perspective, we focus on three tasks to guide and further advance the reversible lithium metal electrode. First, we summarize the state of research and commercial efforts in terms of four key performance parameters, and identify additional performance parameters of interest. 

November 15, 2017

Today more than 99% of thermoelectric power plants (coal Rankine, natural gas combined cycle, solar thermal, etc) in the United States utilize some form of wet cooling due to the superior thermal properties of water over air. Further, for large-scale building cooling applications, wet cooling of the condenser is employed as well. Globally, the projected growth of electrification and air conditioning deployment is a particular concern in water-constrained areas in northern Af-rica, the middle east, and India where further cooling load requirements will put stresses on limited water supplies.

 

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