“David did an excellent job as a Naval Architect on a semisubmersible (Q4000) upgrade project three of us at Stress Engineering performed for Helix Energy in 2006. David was responsible for weight engineering and stability modeling/analysis, and also contributed to the 3D hydrodynamic analysis. He did a very thorough job and met or exceeded all expectations. I strongly recommend David as a first class Naval Architect.”
About
I'm a naval architect and marine engineer by training who has spent the last decade…
Activity
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The job description said “some video work required.” That escalated quickly. #Salmon #HydroPower #PublicPower GoPro Insta360 Chelan County PUD
The job description said “some video work required.” That escalated quickly. #Salmon #HydroPower #PublicPower GoPro Insta360 Chelan County PUD
Liked by David Elwood
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Product testing is fun with the right product. For the past 6 months my time has been heavily focused on building boats and refining the production…
Product testing is fun with the right product. For the past 6 months my time has been heavily focused on building boats and refining the production…
Liked by David Elwood
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Cyber threats don’t wait. They don’t warn. But you do, you protect. Every second, every password, every person. We see your resilience. Because…
Cyber threats don’t wait. They don’t warn. But you do, you protect. Every second, every password, every person. We see your resilience. Because…
Liked by David Elwood
Experience
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Education
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University of Michigan
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Activities and Societies: University of Michigan Sailing Team, Quarterdeck, Human Powered Submarine Team, Detroit Pre-College Engineering Program, Marine Hydrodynamics Laboratory
Studied Naval Architecture and Marine Engineering
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Licenses & Certifications
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Professional Engineer
Washington State Department of Licensing
Issued ExpiresCredential ID 47790
Publications
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Consideration of Energy Market Conditions for Hydropower Upgrade Design
2013 CEATI Hydropower Operations and Planning Workshop, San Diego
See publicationMr. Sherrick presented work using two case studies to explore hydropower modeling for balancing reserves, and how it relates to infrastructure upgrade decisions.
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Estimating the Energy Production Capacity of a Taut-Moored Dual-Body Wave Energy Conversion System Using Numerical Modeling and Physical Testing
Journal of Offshore Mechanics and Arctic Engineering
This paper presents an innovative technique for evaluating the performance of direct-drive power take-off systems for wave energy devices using simulated force and velocity profiles. The performance of a linear generator was evaluated in a realistic operating condition using the results from a coupled model of a taut moored, dual body, wave energy conversion system as position input for Oregon State University’s wave energy Linear Test Bed. The experimental results from the Linear Test Bed can…
This paper presents an innovative technique for evaluating the performance of direct-drive power take-off systems for wave energy devices using simulated force and velocity profiles. The performance of a linear generator was evaluated in a realistic operating condition using the results from a coupled model of a taut moored, dual body, wave energy conversion system as position input for Oregon State University’s wave energy Linear Test Bed. The experimental results from the Linear Test Bed can be compared with the predictions of the simulation and used to evaluate the efficiency of the generator.
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Field Testing to Calibrate a Numerical Hydraulic Model of a Large Diameter Power Tunnel
HydroVision 2011
The Gorge Powerhouse is located on the Skagit River in Newhalem, Whatcom County, Washington, in the Upper Skagit River watershed, and is one of three generating facilities operated by Seattle City Light (SCL) as part of the Skagit Hydroelectric Project. The Gorge Powerhouse is capable of generating 176 MW at a gross head of 380 feet. The nameplate generating capacity is 207.5 MW. The powerhouse has four turbine-generator units. Three of the units were installed in the 1920s, and the fourth unit…
The Gorge Powerhouse is located on the Skagit River in Newhalem, Whatcom County, Washington, in the Upper Skagit River watershed, and is one of three generating facilities operated by Seattle City Light (SCL) as part of the Skagit Hydroelectric Project. The Gorge Powerhouse is capable of generating 176 MW at a gross head of 380 feet. The nameplate generating capacity is 207.5 MW. The powerhouse has four turbine-generator units. Three of the units were installed in the 1920s, and the fourth unit was installed in 1951. Water is conveyed to the powerhouse via an 11,000-foot-long, 20.5-foot diameter, concrete-lined tunnel.
Since the 1970s, SCL has conducted a number of studies for installing a second water conveyance tunnel, and determined that significant improvement in friction loss and generation output could be obtained with a parallel, second tunnel.
HDR conduct a hydraulic evaluation of the new tunnel. One of the key issues was to determine whether a second surge chamber would be required as part of the new tunnel.
An initial hydraulic baseline model for the current tunnel configuration at the Gorge Powerhouse was developed to evaluate the potential effects of a new second tunnel on overall headloss and hydraulic transients. This initial single tunnel hydraulic model formed the basis for subsequent hydraulic models incorporating various second tunnel configurations. The single tunnel hydraulic model was calibrated using steady-state flow test data collected by SCL in 1993 and transient testing completed in May 2009.
This paper describes the transient testing performed and the use of the measured data to calibrate the hydraulic baseline model.Other authors -
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Design, Construction, and Ocean Testing of a Taut-Moored Dual-Body Wave Energy Converter With a Linear Generator Power Take-Off
Renewable Energy
This paper presents an overview of the SeaBeavI project which began in the fall of 2006 and culminated in the ocean testing of a 10kW direct-drive wave energy conversion system in the fall of 2007. The SeaBeavI project was an interdisciplinary effort bringing together researchers from electrical, mechanical, and ocean engineering. A systems design approach was used to develop the taut-moored dual-body wave energy converter concept with the detailed design focused on production and ease of…
This paper presents an overview of the SeaBeavI project which began in the fall of 2006 and culminated in the ocean testing of a 10kW direct-drive wave energy conversion system in the fall of 2007. The SeaBeavI project was an interdisciplinary effort bringing together researchers from electrical, mechanical, and ocean engineering. A systems design approach was used to develop the taut-moored dual-body wave energy converter concept with the detailed design focused on production and ease of maintenance.
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Numerical and Experimental Modeling of Direct-Drive Wave Energy Extraction Devices
The Ocean, Offshore and Artic Engineering Division (OOAE)
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Patents
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METHODS AND APPARATUS FOR POWER GENERATION
Issued US 20100117366
Patent for a direct-drive wave energy generator.
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Courses
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Cold Regions Engineering
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Computational Fluid Dynamics
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Finite Element Analysis
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Marine Dynamics
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Nearshore Hydrodynamics
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Sailboat Design
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Ship Design and Production
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Small Craft Design
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Projects
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SR 520 Floating Bridge
- Present
Working as a sub-consultant to the moorage designer, Mr. Elwood completed a structural analysis of a proposed temporary moorage for the SR 520 floating bridge pontoons. The temporary moorage was designed to be installed in Gray’s Harbor, WA and provide a storage site for forty three-hundred foot long concrete pontoons. The analysis work included building a numerical model of a moored raft of up to six pontoons using OrcaFlex. Mr. Elwood developed and ran the numerical model for a number of raft…
Working as a sub-consultant to the moorage designer, Mr. Elwood completed a structural analysis of a proposed temporary moorage for the SR 520 floating bridge pontoons. The temporary moorage was designed to be installed in Gray’s Harbor, WA and provide a storage site for forty three-hundred foot long concrete pontoons. The analysis work included building a numerical model of a moored raft of up to six pontoons using OrcaFlex. Mr. Elwood developed and ran the numerical model for a number of raft configurations over a range of environmental conditions to determine the design loads on the moorage. This analysis was used to develop the final design of the moorage system.
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Gorge Second Tunnel
- Present
Working as a sub-consultant to a tunnel designer Mr. Elwood led the hydraulic design of a 10,475 foot long, 23 foot diameter second headrace tower for SCL’s Gorge hydroelectric powerhouse. Mr. Elwood assisted in load rejection testing at the Gorge powerhouse to validate a hydraulic transient model of the powerhouse and the new tunnel. Mr. Elwood used a proprietary pipe network and hydraulic transient analysis program (PTURB) to evaluate both the steady state and transient hydraulic performance…
Working as a sub-consultant to a tunnel designer Mr. Elwood led the hydraulic design of a 10,475 foot long, 23 foot diameter second headrace tower for SCL’s Gorge hydroelectric powerhouse. Mr. Elwood assisted in load rejection testing at the Gorge powerhouse to validate a hydraulic transient model of the powerhouse and the new tunnel. Mr. Elwood used a proprietary pipe network and hydraulic transient analysis program (PTURB) to evaluate both the steady state and transient hydraulic performance of the proposed second tunnel compared with the existing system.
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Admiralty Inlet Tidal Energy Project
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Mr. Elwood evaluated 11 competing proposals by tidal energy technology developers to provide equipment for a tidal energy pilot project. The systems were evaluated based on their stage of development, robustness, maintainability, demonstrated environmental impact, and cost. In support of the FERC licensing process, Mr. Elwood has developed preliminary salvage, navigational safety, and emergency response plans for a tidal energy pilot project. These plans were used in consultation with state…
Mr. Elwood evaluated 11 competing proposals by tidal energy technology developers to provide equipment for a tidal energy pilot project. The systems were evaluated based on their stage of development, robustness, maintainability, demonstrated environmental impact, and cost. In support of the FERC licensing process, Mr. Elwood has developed preliminary salvage, navigational safety, and emergency response plans for a tidal energy pilot project. These plans were used in consultation with state and federal agencies to develop final plans for the project. Mr. Elwood also supported the development of the nearfield environmental monitoring plan by evaluating potential acoustic and optical techniques for identifying moving targets near the turbines.
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SeaBeav Wave Energy Converter
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Mr. Elwood served as a project manager and ocean engineer for the design, construction, and ocean testing of a prototype wave energy conversion system. The prototype system was designed by an interdisciplinary team of graduate researchers to provide a demonstration of a 10 kW direct-drive wave energy converter in the open ocean. Mr. Elwood designed the hull structure and mooring system for the device. He also oversaw the construction of the hull and managed the logistics for the installation…
Mr. Elwood served as a project manager and ocean engineer for the design, construction, and ocean testing of a prototype wave energy conversion system. The prototype system was designed by an interdisciplinary team of graduate researchers to provide a demonstration of a 10 kW direct-drive wave energy converter in the open ocean. Mr. Elwood designed the hull structure and mooring system for the device. He also oversaw the construction of the hull and managed the logistics for the installation and recovery of the system off the coast of Newport, Oregon.
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Blind Faith Semi-Submersible Production Platform
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Mr. Elwood helped to design the steel catenary riser system for the Blind Faith semi-submersible production platform. The work included the analysis of the extreme loads, fatigue life, and transient buckling of the risers using a proprietary coupled analysis tool (RAMS). The Blind Faith platform operating installed in approximately 7,000 feet of water in the Gulf of Mexico.
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Languages
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German
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Organizations
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CEATI
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Recommendations received
1 person has recommended David
Join now to viewMore activity by David
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Hydropower may not always make the headlines. Still, it quietly powers the world with clean, dispatchable energy and gives grids globally further…
Hydropower may not always make the headlines. Still, it quietly powers the world with clean, dispatchable energy and gives grids globally further…
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In our laboratory in Grenoble, France, our teams successfully completed the #hydropower turbine prototype testing for the possible expansion of the…
In our laboratory in Grenoble, France, our teams successfully completed the #hydropower turbine prototype testing for the possible expansion of the…
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Thrilled to have spent time with these truly inspirational Leaders in Atlanta a few weeks ago! I am humbled by the learning they sparked in me and…
Thrilled to have spent time with these truly inspirational Leaders in Atlanta a few weeks ago! I am humbled by the learning they sparked in me and…
Liked by David Elwood
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There is a big difference between being a Leader and being a Boss. Tina was always a Leader!
There is a big difference between being a Leader and being a Boss. Tina was always a Leader!
Shared by David Elwood
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What a pleasure it is to work with the skilled trades. The setting and welding of 72 keybars in 8 days is not possible without experienced and…
What a pleasure it is to work with the skilled trades. The setting and welding of 72 keybars in 8 days is not possible without experienced and…
Liked by David Elwood
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Working in hydropower it is rare to see a new technology that is a real "game changer." Over 150 years of engineering optimization and innovation…
Working in hydropower it is rare to see a new technology that is a real "game changer." Over 150 years of engineering optimization and innovation…
Shared by David Elwood
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Free tech training from Amazon helps employees make smart career moves.
Free tech training from Amazon helps employees make smart career moves.
Liked by David Elwood
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Did you know? With GE Vernova’s Diagnosis Rotor in Situ (DIRIS)™ * inspection technology, you can evaluate hydro generator stator slot wedges without…
Did you know? With GE Vernova’s Diagnosis Rotor in Situ (DIRIS)™ * inspection technology, you can evaluate hydro generator stator slot wedges without…
Liked by David Elwood
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Way to go InPipe and Skagit PUD! Every kWh matters in the energy transition.
Way to go InPipe and Skagit PUD! Every kWh matters in the energy transition.
Shared by David Elwood
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Quaise Energy
“Derisking millimeter wave drilling at our first project will show the world our recipe to build superhot geothermal everywhere.” Matt Houde, our co-founder and Chief of Staff, joined over 180 investors, strategics, and disruptors at Decarb Connect in Boston to tackle one of the toughest challenges in climate: derisking and scaling industrial hardtech beyond Series B and First-of-a-Kind plants. And at #Quaise, we’re no exception. We’re developing the world’s first superhot #geothermal power plant while advancing millimeter wave #drilling to fuel the industries of the 21st century and beyond. As Matt says, “we’re rapidly moving from microwaves in the ground to megawatts on the grid.”
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Spencer Cox
Valar Atomics has started construction on the Ward 250 test reactor at the Utah San Rafael Energy Lab. This next-generation project strengthens energy security and advances reliable, homegrown power for the future. | Operation Gigawatt is underway. ⚡️ More here: https://lnkd.in/gmWfF28H
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Rystad Energy
The first episode of Let’s Talk Energy is now live - The looming oil supply challenge with Artem Abramov. This week, Noah Brenner sits down with Artem to discuss: • Offshore and conventional reservoirs • The shale production wildcard • How pricing will incentivize future production Tune in to hear about reserve replacement, project execution, development costs, and what all this means for oil supply and prices. 📱 Listen on-the-go on: • Spotify: https://lnkd.in/d6XuxTkJ • Apple Podcast: https://lnkd.in/dAARimab ▶️ Watch now on YouTube: https://lnkd.in/d4s52gKU #LetsTalkEnergy #RystadEnergy #energypodcast
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Tom Watson
Hyundai Engineering & Construction Co.,Ltd. to deliver nuclear power to Fermi America 11GW AI campus in Amarillo, Texas. The project is being developed in conjunction with the Texas Tech University System. It is designed to be the world's largest, first-of-its kind private grid to power next-generation AI. The site spans 5,769 acres, with full build-out capacity expected to reach 11GW. Fermi aims to integrate a range of energy sources to power its HyperGrid campus, including, what it says will be “the largest nuclear power complex in America.” "We couldn't be more pleased to partner with the team at Hyundai E&C to power the future of AI," said Fermi America co-founder Toby Neugebauer. "We have been impressed by the executive team Fermi America has assembled, bringing together seasoned leaders in their respective fields," said Hyundai E&C CEO Hanwoo Lee. The company plans to install four 1GW Westinghouse AP1000 nuclear reactors on the site, and the nuclear complex could start construction next year and be completed by 2032. The U.S. Nuclear Regulatory Commission is currently in the process of reviewing the application. Are you hiring for your infrastructure projects? DM me on LinkedIn or email tom@futuraenergygroup.com to discuss how Futura Energy Group can help. #energyinfrastructure #digitalinfrastructure #electricalinfrastructure #powerinfrastructure #datacenters
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Tamboran Resources Corporation
Via Small Caps Tamboran Resources Set for Major Gas Production at Beetaloo’s Shenandoah South Project Long-considered one of the world’s most significant undeveloped #gas provinces, the Beetaloo Sub-basin has achieved a major milestone with a joint venture led by Tamboran Resources Corporation announcing the go-ahead for the Shenandoah South pilot project. The project will provide long-term production testing of multiple wells, offering the potential to sanction a large-scale development to the east coast of Australia gas market. The partners expect first gas sales to commence from the Northern Territory project in mid-2026. Continue reading: https://loom.ly/GpurC-s #TamboranResources #TBN #ASX
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Keith Chapman
Coastal Bend LNG and ClassVI.ai Introduce First-of-its-Kind AI Solution for FERC Permit Preparation Coastal Bend LNG, developer of a natural gas liquefaction and export facility along the Texas Gulf Coast, today announced it will be preparing its Federal Energy Regulatory Commission (FERC) permit application with artificial intelligence (AI) solutions from ClassVI.AI, an American start-up leveraging AI to expedite permitting for energy infrastructure projects. FERC permit applications comprise multiple exhibits detailing project features, environmental impact assessments, engineering designs, and community engagement plans. ClassVI.AI’s neuro-symbolic AI solution prepares content to address FERC’s permit requirements. “Embedding ClassVI.AI’s secure, generative AI solutions into our permitting workflow is accelerating our preparation for the FERC pre-filing and application process,” said Nick Flores, CEO of Coastal Bend LNG. He added "AI streamlines our internal processes and enables our teams to be focused on community engagement and operational excellence.” “Our AI solutions are specifically designed to remove the administrative burden from energy infrastructure permitting so companies like Coastal Bend LNG can focus on delivering high quality results for all of their stakeholders,” said Eric Redmond, CEO of ClassVI.AI. Coastal Bend LNG expects to commence the FERC pre-filing process during 2025. All filings will be reviewed prior to submission by the Energy Regulatory practice of Skadden, Arps, Slate, Meagher & Flom LLP. About Coastal Bend LNG Coastal Bend LNG is a privately held energy infrastructure development company dedicated to delivering low-carbon energy to the world. With a focus on sustainability, innovation, and operational excellence, the company is at the forefront of unleashing American energy dominance. For more information, visit coastalbendlng.com. About ClassVI.AI ClassVI.AI accelerates industrial decarbonization by modernizing energy permitting and regulatory processes with artificial intelligence. Contacts Nick Flores, CEO, Coastal Bend LNG pr@coastalbendlng.com Eric Redmond, CEO, ClassVI.AI eric@classvi.ai 503-387-7070 https://lnkd.in/gfHJncjj
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David Elwood
International Talent Acquisiton Leader I Recuitment Specialist I Human Resource Talent Partner I Talent Acquisition Manager I Learning & Development I AIRS Certified Diversity & Inclusion Recruiter (CDR)
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David Elwood
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David Elwood
Epique Realty - Agent Ambassador-Growth Coach / CORE Executive Director - International Agent & Team Builder/ Helping agents grow personally, professionally, financially~ Interested in Epique Realty? 1-248-923-4334
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David Elwood
Sales Manager / Robertson Furniture MFG
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