Award Data

Current inspection, maintenance and lifetime estimation practices for composite cylinders have been adopted from earlier NASA research. WavesinSolids LLC are proposing a technological based on an acoustic emission (AE) technique for the in-service testing of composite cylinders. The approach will establish the correlation between AE activity and intensity metrics and the stress intensity factor, a ...

This Phase I project aims to increase the reliability of radio frequency (RF) devices used in accelerator facilities by reducing/eliminating corrosion and erosion produced from the high purity de-ionized water cooling systems. Although metal interconnects are the required for electrical and thermal performance, they susceptible to two major failure mechanisms, corrosion and erosion. Currently RF l ...

Accelerators used in synchrotron light sources require megawatts of radio-frequency energy. They currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime electrical power. We will review available transistors, analyze high-efficiency power-amplifier techniques, and experimentally evaluate candidate amplifi ...

This Proposal addresses the need for high average power (HAP), near-diffraction-limited laser sources for laser stripping applications, an important process for going forward with plans to build an 8 GeV H- to proton injector source for driving upgraded Fermi National Accelerator Laboratory proton accelerators. The overall objective of the proposed program is to apply high average power ultrafast ...

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. They currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime electrical power. We will review available transistors, analyze high-efficiency power-amplifier techniques, and experimentally evaluate candidate amplifi ...

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. They currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime electrical power. We will review available transistors, analyze high-efficiency power-amplifier techniques, and experimentally evaluate candidate amplifi ...

Capacitors are critical components in power modulator systems for radio frequency accelerator technology, in power electronics in electric vehicles, wind energy, and photovoltaic panels, and in directed energy weapon systems. Current capacitors have low energy density and occupy 25-50% volume of the devices. We propose to develop unconventional wound glass capacitors with high energy density, high ...

Frac fluids are viscous solutions that are pumped under high pressure to fracture subsurface formations for recovery of natural gas. As it is pumped to the surface, the flowback water picks up large quantities of various contaminants that make it difficult to dispose or recycle. Though this water contains hazardous substances such as heavy metals (i.e. copper, lead, zinc, and cadmium), arsenic, se ...

In 2005, commercial and residential Heating, Ventilation, and Air Conditioning (HVAC) systems represented 518 billion kWh of energy consumption in the United States, which amounts to 8% of the total energy produced that year. In addition, producing this power resulted in the release of 465 MMTCO2e of greenhouse gases. By reducing the energy demand of air conditioning systems, the US can realize a ...

It is well established that prolonged operation at high junction temperatures reduces the lifetime of LEDs, significantly undermining one of the main benefits of LED lighting systems. Despite advances in LED device technology, a significant fraction of the electrical energy input is wasted as heat. Inadequate removal of this heat results in poor optical performance and sort lifespan of LED lighti ...