About
37 years working in Research and Development of Alternative Energy Sources, battery and…
Activity
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Whilst seeing lots of posts commenting on Jaguars’s new brand change I am suprised to not see much on their stopping of all Uk sales of new cars from…
Whilst seeing lots of posts commenting on Jaguars’s new brand change I am suprised to not see much on their stopping of all Uk sales of new cars from…
Liked by Omo Velev
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This Time cover is amazing. Elon Musk has had the most epic to-do list of any human in the modern age, and he checks those boxes like no one else…
This Time cover is amazing. Elon Musk has had the most epic to-do list of any human in the modern age, and he checks those boxes like no one else…
Liked by Omo Velev
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Excited to give a keynote at the 10th Annual Conference IET London next month. Check out this event - it's just an amazing place to learn about IOT…
Excited to give a keynote at the 10th Annual Conference IET London next month. Check out this event - it's just an amazing place to learn about IOT…
Liked by Omo Velev
Experience
Education
Licenses & Certifications
Courses
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Detailed Project Planning
1510314
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Project Initiation Costing and Selection
1530613
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Project Monitoring and Control
1521013
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Project Organization and Leadership
1500813
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Project Risk Management
1541113
Projects
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West Coast Green Highway
Design, Deployment and Management of The “West Coast Electric Highway”. WCEH is an extensive network of electric vehicle (EV) DC fast charging stations located every 25 to 50 miles along Interstate 5 and other major roadways in the Pacific Northwest. The Washington State Department of Transportation leads the charge on the Washington segment and the Oregon Department of Transportation heads up the Oregon segment.
Other creatorsSee project -
Long Endurance Fuel Cell System for Small Unmanned Aerial Vehicles
The warfighter requires long flight duration, hand-launched, small Unmanned Aerial Vehicles (UAVs). Batteries are expensive and provide limited flight duration. A viable alternative to batteries, that could provide higher gravimetric and volumetric energy density, and lower life cycle cost, are hybrid battery/fuel cell systems with hydrogen stored as chemical hydride, which, when reacted with water, generates the required fuel as-needed. AeroVironment’s (AV’s) Phase I effort determined it would…
The warfighter requires long flight duration, hand-launched, small Unmanned Aerial Vehicles (UAVs). Batteries are expensive and provide limited flight duration. A viable alternative to batteries, that could provide higher gravimetric and volumetric energy density, and lower life cycle cost, are hybrid battery/fuel cell systems with hydrogen stored as chemical hydride, which, when reacted with water, generates the required fuel as-needed. AeroVironment’s (AV’s) Phase I effort determined it would be feasible to develop an integrated fuel cell/battery hybrid energy storage system for the AV-designed and manufactured PUMA UAV, The 9-ft wingspan PUMA has a flight duration of three hours on rechargeable batteries, but will be able to fly for 6-8 hours with the fuel cell-based energy storage system. In phase I we worked with several fuel cell system developers and conducted a bench top demonstration of an integrated fuel cell/battery hybrid system using a Protonex fuel cell and hydrogen storage system. In Phase II, we will optimize and build a fuel cell-based energy storage system and conduct several tests to demonstrate achievable flight duration. We will also perform feasibility studies for adding advanced solar cells on the PUMA wings and integrating a similar energy storage system into the Raven UAV.
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Renewable Energy and Energy Storage for Micro-Grids
Contract management, project development and proof-of-concept for the utilization of renewable energy, generator sets and energy storage for micro-grids. Contracted with the US Army and US Marine Corps.
Other creatorsSee project -
Marine Portable Power Unit
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Reliable, high quality power is one of the most important, yet tactically difficult tools the Marine uses. In many locations, grid reliability and power quality are uncertain, and battery use, where the grid isn’t available, is even more challenging. Thus, a solution that provides uninterruptible power supply (UPS) functionality, uses currently deployed batteries as building blocks, intelligently charges batteries, and provides high quality AC and DC power would be extremely useful. This UPS…
Reliable, high quality power is one of the most important, yet tactically difficult tools the Marine uses. In many locations, grid reliability and power quality are uncertain, and battery use, where the grid isn’t available, is even more challenging. Thus, a solution that provides uninterruptible power supply (UPS) functionality, uses currently deployed batteries as building blocks, intelligently charges batteries, and provides high quality AC and DC power would be extremely useful. This UPS solution, however, must also be light enough to be portable and rugged to withstand tough Marine environments. The proposed UPS solution will provide 1kW of 120VAC backup power for up to three hours, charge 12V and 24V batteries, and provide DC power. Thus, the AC and DC power flow will be bi-directional and the batteries hot-swappable. While the design and packaging is challenging, and will require an innovative effort, AeroVironment has developed a charger it currently uses for its unmanned aerial vehicles (UAVs) that can be adapted for the DC battery portion. In addition, AeroVironment uses patented technology for charging multiple electric vehicles (PosiCharge®) that can be adapted for strategically directing power flow to the batteries. We also have extensive experience developing bi-directional grid-tied equipment
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DC-DC Converter for Regenerative Fuel Cell / Battery Hybrid Systems
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Satellite platforms, high altitude long endurance (HALE) aircraft, and remote terrestrial telecommunications stations require highly reliable energy production and storage systems to maximize payload power and performance. The regenerative fuel cell (RFC) system, in hybrid configuration with a battery pack or ultracapacitor bank, can provide a 25:1 peak to base load power delivery ratio. However, this hybrid system requires a DC-DC converter from the energy source (solar array) to the RFC…
Satellite platforms, high altitude long endurance (HALE) aircraft, and remote terrestrial telecommunications stations require highly reliable energy production and storage systems to maximize payload power and performance. The regenerative fuel cell (RFC) system, in hybrid configuration with a battery pack or ultracapacitor bank, can provide a 25:1 peak to base load power delivery ratio. However, this hybrid system requires a DC-DC converter from the energy source (solar array) to the RFC electrolyzer and payload, and a specialized bi-directional DC-DC converter to protect the fuel cell, control the flow of power to and from the battery or ultracapacitor, and stabilize the DC bus. The proposed Phase II effort will develop a combination multi-directional DC-DC converter that will satisfy these complex requirements. The DC-DC converter must have a high conversion efficiency, low weight, low volume and sophisticated control scheme to regulate the system under many circumstances. AeroVironment has developed the high altitude RFC system for NASA’s ERAST program and conducted many other fuel cell integration projects. We have also developed many specialized DC-DC converters. By demonstrating feasibility, we will assist the Air Force to develop efficient energy production and storage systems for satellites and HALEs for station-keeping and powering large payloads
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Long Endurance Fuel Cell System for Small Unmanned Aerial Vehicles
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For operational and logistic reasons, the warfighter requires longer flight duration hand-launched, Small Unmanned Aerial Vehicles (SUAVs). PUMA, a 9-ft wingspan SUAV, designed and manufactured by AeroVironment (AV), has a flight duration of four hours on primary batteries, while Dragon Eye, another AV SUAV, with a 4-ft wingspan, has a flight duration of one hour on secondary batteries. Single use primary batteries are extremely expensive on a life-cycle basis, while, unfortunately…
For operational and logistic reasons, the warfighter requires longer flight duration hand-launched, Small Unmanned Aerial Vehicles (SUAVs). PUMA, a 9-ft wingspan SUAV, designed and manufactured by AeroVironment (AV), has a flight duration of four hours on primary batteries, while Dragon Eye, another AV SUAV, with a 4-ft wingspan, has a flight duration of one hour on secondary batteries. Single use primary batteries are extremely expensive on a life-cycle basis, while, unfortunately, rechargeable ones aren’t always used to their full potential. A viable alternative to batteries, that could provide higher gravimetric and volumetric energy density, and lower life cycle cost, is hydrogen fuel cells where a chemical hydride combines with water to generate the required hydrogen fuel on an as-needed basis. Our Phase I effort will investigate the feasibility of developing a high specific energy (>800 Wh/kg), integrated fuel cell/battery hybrid energy storage system with a chemical hydride as a source of the hydrogen fuel. We will conduct our design efforts specifically for an Air Force SUAV, such as the Raven or PUMA, but will keep other potential SUAVs in mind. AV, DOD’s largest supplier of SUAVs, will work with an advanced developer of lightweight, compact fuel cell systems.
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Fuel Cell Power System with Parallel-Connected Bi-directional DC-DC
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Satellite platforms require lightweight, highly reliable energy production and storage systems to maximize payload power and performance. The regenerative fuel cell (RFC) system is a promising electrochemical technology that has a high specific energy on the order of 550Wh/kg. An RFC system in hybrid configuration with a battery requires a specialized bi-directional DC-DC converter to protect the fuel cell, control the flow of power to and from the battery, and stabilize the DC bus. The…
Satellite platforms require lightweight, highly reliable energy production and storage systems to maximize payload power and performance. The regenerative fuel cell (RFC) system is a promising electrochemical technology that has a high specific energy on the order of 550Wh/kg. An RFC system in hybrid configuration with a battery requires a specialized bi-directional DC-DC converter to protect the fuel cell, control the flow of power to and from the battery, and stabilize the DC bus. The proposed Phase I effort will investigate the feasibility of developing a complex DC-DC converter for satellite RFC/battery hybrid system applications. The DC-DC converter must have a high conversion efficiency, low weight, low volume and sophisticated control scheme to minimize the RFC system specific energy. The control scheme in particular must regulate the system under a variety of conditions, yet protect system components. AeroVironment will overcome the many technical challenges with experience gained developing a high altitude RFC system for NASA's ERAST program, conducting other fuel cell integration projects and designing many DC-DC converters. By demonstrating feasibility, we will assist the Air Force to develop efficient energy production and storage systems for satellites and other space platforms for station-keeping and powering large payloads.
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High Energy Density Power Sources for Unmanned Surface Vehicle (USV) Sensor Payloads
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Unmanned Surface Vehicles (USVs) require a low signature power source for on-station operation of sensor payloads. The power source must have a high energy density, be reliable, require low maintenance, and be able to withstand salt spray and heavy seas for a two week mission duration. In addition, the payload duty cycle requires up to 25kW peak loads for ten seconds out of every minute, with constant loads of several kilowatts. For the proposed Phase I effort AeroVironment will investigate the…
Unmanned Surface Vehicles (USVs) require a low signature power source for on-station operation of sensor payloads. The power source must have a high energy density, be reliable, require low maintenance, and be able to withstand salt spray and heavy seas for a two week mission duration. In addition, the payload duty cycle requires up to 25kW peak loads for ten seconds out of every minute, with constant loads of several kilowatts. For the proposed Phase I effort AeroVironment will investigate the feasibility of using the propulsion diesel engines in hybrid with a lithium battery pack and potentially other power sources. Strategically sizing the battery pack to handle the ten second peak loads and average continuous loads while on station allows the propulsion diesel engines to operate intermittently as an energy storage system charger. Under critical conditions, the battery pack or other power source would be the sole supply of sensor payload power, thus allowing USV silent operation. AeroVironment will overcome project technical challenges using our experience gained developing many hybrid electric vehicle systems. By demonstrating feasibility, we will assist the Navy to develop silent mode, low signature operation of its USV fleet for periods of two weeks.
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72 kW Hydrogen Fuel Genset
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The Clean Air Act requires flight line Ground Support Equipment (GSE) to convert from highly polluting diesel engine technology to electric or hybrid-electric operation as a measure to mitigate overall airport emissions. The proposed Phase I effort will investigate the feasibility of replacing a conventional 72kW diesel engine generator set (genset) with a fuel cell/battery power plant in a hybrid-all-electric configuration. To adhere to the Common Core Power Production (C2P2) initiative, the…
The Clean Air Act requires flight line Ground Support Equipment (GSE) to convert from highly polluting diesel engine technology to electric or hybrid-electric operation as a measure to mitigate overall airport emissions. The proposed Phase I effort will investigate the feasibility of replacing a conventional 72kW diesel engine generator set (genset) with a fuel cell/battery power plant in a hybrid-all-electric configuration. To adhere to the Common Core Power Production (C2P2) initiative, the replacement fuel cell-powered 72kW genset must have equal or better power output, size, weight, fuel consumption, maintenance, training, ease of support, safety, life cycle cost, and overall ease of operation. PEM Fuel cell technology coupled with efficient power electronics promises higher system efficiency, lower emissions, fast transient response, and potentially lower life cycle cost. AeroVironment will overcome the many technical challenges with experience gained conducting our NASA-sponsored fuel cell integration work, with experience gained through our distributed generation joint venture with Delco Remy International (75kW and 150kW gensets), and with our extensive power electronics and system integration expertise. By demonstrating feasibility, we will ultimately reduce emissions and also help reduce U.S. reliance on foreign oil by accelerating the transition to a hydrogen economy. Anticipated benefits include far lower emissions (zero), higher fuel efficiency, more efficient power electronics, faster transient response, greater system efficiency, and ease of use and serviceability. The faster transient response will result from the battery/fuel cell hybrid combination. Commercial applications include not only Air Force flight line duty, but also commercial airline ground support equipment. In addition, a very large potential distributed generation market for fuel cell technology is emerging.
Languages
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Bulgarian
Native or bilingual proficiency
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French
Professional working proficiency
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Russian
Full professional proficiency
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English
Full professional proficiency
Organizations
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Pasadena Angels
member
- Present
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super fortunate to call these guys my friends, Mike Nolan and Tom Ribaudo. #competitors #colleagues
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this was a great time. true trailblazers...
this was a great time. true trailblazers...
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I had the honor to discuss the engineering field and careers with the scholars at the National Youth Leadership Forum: Engineering. The event was…
I had the honor to discuss the engineering field and careers with the scholars at the National Youth Leadership Forum: Engineering. The event was…
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