Search Results - william+lear

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Retrofitted Gas Turbine Engine for Low-Emission Hydrogen Combustion

Applies Dilution to Lower Combustion Temperature and Emissions, Allowing Engines to Operate on Pure Hydrogen while Minimizing the Generation of Nitrous Oxides Retrofitting gas turbine engines with inlet air dilution enables hydrogen gas combustion for power generation without excessive nitrous oxide emissions. Hydrogen utilization in gas turbine engines...

Published: 3/20/2024 | Inventor(s): William Lear

Keywords(s):

Category(s): Technology Classifications > Engineering > Mechanical, Technology Classifications > Others > Energy

PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids

The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...

Published: 7/30/2024 | Inventor(s): Payman Dehghanian, Shiyuan Wang, Li Li

Keywords(s):

Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment

Semi-Closed Cycle Gas Turbine Engine Reduces Environmental Impact of Flight

Design Increases Engine Efficiency and Limits the Formation of Environmentally Damaging Contrails This highly compact gas turbine airplane engine recirculates most of the post-combustion flow to join with air coming into the engine. The design increases engine performance and reduces the environmental impact of flight by limiting contrail formation....

Published: 11/29/2021 | Inventor(s): William Lear

Keywords(s):

Category(s): Technology Classifications > Engineering > Mechanical, Technology Classifications > Engineering > Materials

Humid Air Turbine for Power Generation, Refrigeration and Water Extraction

High Efficiency Turbine Provides Distributed Power to GridThis humid air turbine is a combined cooling, heat, and power system that provides increased power grid efficiency and stability by providing flexible distributed electricity generation (~1 MW per unit). Consumer electricity demands vary widely throughout the day, requiring utility companies...

Published: 6/27/2021 | Inventor(s): William Lear

Keywords(s): combined heat and power, Gas Turbine, humid air turbine, semi-closed cycle

Category(s): Technology Classifications > Engineering, Technology Classifications > Engineering > Mechanical, Technology Classifications > Others > Energy

Engine that Uses Cryogenic Energy Storage to Improve Vehicle Fuel Efficiency and Greatly Reduce Fossil Fuel Dependence

Utilizes Heat from Existing Exhaust to Recover Cryogenically Stored Renewable Energy, More Than Doubling Fossil Fuel EfficiencyCryogenic power extraction increases fuel efficiency by applying exhaust heat from a vehicle engine to expand a cryogenic liquid (e.g. liquid nitrogen, liquid natural gas) into gas that runs a turbine. Available engine designs...

Published: 2/9/2022 | Inventor(s): Charles Cook, William Lear

Keywords(s): Cryogenics, Power Generation, Renewable Energy

Category(s): Technology Classifications > Engineering > Mechanical, Technology Classifications > Others > Cleantech

Direct Methanol Fuel Cells for Increased Energy Capacity in Laptops and Other Mobile Electronics

Reduces Bulk and Increases Operational Efficiency of DMFCs for Use in Portable DevicesThese direct methanol fuel cells can increase the capacity of energy storage in portable electronics, such as laptops and tablets. Methanol is an inexpensive, widely available fuel that can be extracted from both natural gas and renewable plant materials, such as wood....

Published: 6/27/2021 | Inventor(s): Oscar Crisalle, William Lear, Shyam Mudiraj, Mohammad (Rafe) Biswas

Keywords(s): Automatic Control System, Clean Tech, DMFC, Portable Power

Category(s): Technology Classifications > Engineering > Chemical

Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers

Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert

Keywords(s):

Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources

All-Fiber Multicore Fiber Laser Devices

Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...

Published: 4/3/2023 | Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li

Keywords(s):

Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources