US Undersea Warfare Science & Technology Objectives and US Unmanned Undersea Vehicles (UUV) Overview
The Naval Undersea Warfare Center Division Newport provides research, development, test and evaluation, engineering, analysis and assessment, as well as Fleet support capabilities for submarines, autonomous underwater systems, and offensive and defensive undersea weapon systems, and stewards existing and emerging technologies in support of undersea warfare.
•Power and Energy Science and Technology Objectives:
1.Develop safe reliable, affordable and high efficiency energy management, generation, transfer, shipment, deployment, and storage for undersea platforms;
2.Develop safe, reliable, affordable and efficient high pulse power management, generation, transfer and employment;
3.Develop the capability to reliably and safely harvest, obtain, store and transfer energy to undersea assets;
4.Develop capability to reliably characterize the failure effects and modes of power and energy sources.
This is a self-contained three-day short course on the fundamentals of tactical missile design. It provides a system-level, integrated method for missile aerodynamic configuration/propulsion design and analysis and addresses the broad range of alternatives in meeting cost and performance requirements. The methods presented are generally simple closed-form analytical expressions that are physics-based, to provide insight into the primary driving parameters. Configuration sizing examples are presented for rocket-powered, ramjet-powered, and turbojet-powered baseline missiles. Typical values of missile parameters and the characteristics of current operational missiles are discussed, as well as the enabling subsystems and technologies for tactical missiles, the development process, and the current/projected state-of-the-art. The attendees will vote on the relative emphasis of the topics. Over thirty videos illustrate missile development activities and missile performance. Finally, each attendee may design, build, and fly an air-powered rocket that illustrates some of the course design methods.
Cruise missiles form a major part of modern warfare and have spread extensively to all branches of the military. Their effective use in a modern conflict can change the outcome of war without resorting to nuclear weapons. Improvements in cruise missile technology will see more intelligent, self-manoeuvring and hypersonic missiles flood the world market. But whatever happens, cruise missiles will remain one of the most reliable weapons for the foreseeable future.
This is a self-contained three-day short course on the fundamentals of tactical missile design. It provides a system-level, integrated method for missile aerodynamic configuration/propulsion design and analysis and addresses the broad range of alternatives in meeting cost and performance requirements. The methods presented are generally simple closed-form analytical expressions that are physics-based, to provide insight into the primary driving parameters. Configuration sizing examples are presented for rocket-powered, ramjet-powered, and turbojet-powered baseline missiles. Typical values of missile parameters and the characteristics of current operational missiles are discussed, as well as the enabling subsystems and technologies for tactical missiles, the development process, and the current/projected state-of-the-art. The attendees will vote on the relative emphasis of the topics. Over thirty videos illustrate missile development activities and missile performance. Finally, each attendee may design, build, and fly an air-powered rocket that illustrates some of the course design methods.
Cruise missiles form a major part of modern warfare and have spread extensively to all branches of the military. Their effective use in a modern conflict can change the outcome of war without resorting to nuclear weapons. Improvements in cruise missile technology will see more intelligent, self-manoeuvring and hypersonic missiles flood the world market. But whatever happens, cruise missiles will remain one of the most reliable weapons for the foreseeable future.
Presentation by Corinne Kramer, an analyst in CBO’s National Security Division, as part of the Global Security Technical Webinar Series at the Massachusetts Institute of Technology.
Overview of The Naval Undersea Warfare Center (NUWC) Distro Achrisrobschu
The Naval Undersea Warfare Center (NUWC) has a proud heritage of providing superior
undersea warfare (USW) products and services to the U.S. Navy. Our mission is
enduring and our fundamental role of serving the Fleet is as vital today as it has ever
been since our predecessor was created in 1869.
Our role as a Navy Warfare Center is to support the Chief of Naval Operations’ (CNO)
“A Cooperative Strategy for 21st Century Seapower” by bringing cost-effective solutions
to the Fleet. In cooperation with our government, industry, and academic partners, we
do this by developing conceptual ideas, seizing technological opportunities, and bringing
these through product development, testing, sea-trial, acquisition, acceptance testing,
Fleet introduction, and on-going support.
Nuwc brochure distro_a
This paper was delivery at the ASNE Virtual Technology, Systems and Ships symposium. January 26-28 2021. It focused on ways to integrate unmanned surface vessels into the fleet. He highlight a concept o operations, he designated as a 'nesting dolls" approach. Credit: MARTAC
This presenation details on various Bird Strike avoidance methods and clarifies some of the common myths we have about Bird Strikes and Avoidance in context to the Aviation Industry
Introduction to Radio Controlled PlanesMostafa Eid
This is an introductory for beginners who do not know where to start or how to start, so this comprehensive session states the major types of RC Aircrafts which shall allow you to search deeply in one or all of these categories
Presentation by Corinne Kramer, an analyst in CBO’s National Security Division, as part of the Global Security Technical Webinar Series at the Massachusetts Institute of Technology.
Overview of The Naval Undersea Warfare Center (NUWC) Distro Achrisrobschu
The Naval Undersea Warfare Center (NUWC) has a proud heritage of providing superior
undersea warfare (USW) products and services to the U.S. Navy. Our mission is
enduring and our fundamental role of serving the Fleet is as vital today as it has ever
been since our predecessor was created in 1869.
Our role as a Navy Warfare Center is to support the Chief of Naval Operations’ (CNO)
“A Cooperative Strategy for 21st Century Seapower” by bringing cost-effective solutions
to the Fleet. In cooperation with our government, industry, and academic partners, we
do this by developing conceptual ideas, seizing technological opportunities, and bringing
these through product development, testing, sea-trial, acquisition, acceptance testing,
Fleet introduction, and on-going support.
Nuwc brochure distro_a
This paper was delivery at the ASNE Virtual Technology, Systems and Ships symposium. January 26-28 2021. It focused on ways to integrate unmanned surface vessels into the fleet. He highlight a concept o operations, he designated as a 'nesting dolls" approach. Credit: MARTAC
This presenation details on various Bird Strike avoidance methods and clarifies some of the common myths we have about Bird Strikes and Avoidance in context to the Aviation Industry
Introduction to Radio Controlled PlanesMostafa Eid
This is an introductory for beginners who do not know where to start or how to start, so this comprehensive session states the major types of RC Aircrafts which shall allow you to search deeply in one or all of these categories
Centre for Defence Enterprise (CDE) Innovation Network. Dstl Programme Manager and Capability Adviser briefings on CDE's enduring challenge competition.
IDGA is excited to announce registration is now open for the 7th Annual Military Radar Summit – the premier military radar community event of the year! We had an excellent turnout last year and are building on this success through innovative sessions and speakers for 2014.
This year’s event is on the “business of radars” that seeks to bridge gaps between DOD, US Government, OEM’s, subcontractors, academia, and businesses of all sizes. It provides a forum for radar stakeholders to look to the future of military radar while examining projects aimed at prolonging the lives of current US military radars.
Recent Achievements with Alane (Aluminum Hydride, AlH3) and Fuel Cell Power S...chrisrobschu
Fuel cells have many advantages compared to conventional power sources including high efficiency and solid-state operation. Until now, a key shortcoming of fuel cell technology has been the fuel itself, as conventional methods for storing hydrogen were unsafe or impractical for portable use. This paper discusses a lightweight, energy-dense, non-toxic, recyclable, stable, and easy to transport solution for hydrogen storage. It is a material known as Alane that exists as powder and, when heated to the proper temperature, controllably releases hydrogen gas. Alane has near ideal attributes in terms of reactivity, stability, and safety - making it an excellent choice for several applications in need of a portable hydrogen supply. However, it has historically been difficult to produce efficiently. Through partnerships with leading industry experts in the government and private sector, Ardica Technologies has advanced the state of the art of Alane production. Ardica has developed a small-scale process which has been proven to yield high quality Alane that meets or exceeds the characteristics of the generally accepted gold standard reference material.
Power sources 2018_paper14-2
Underwater Sound Generation Using Carbon Nanotube Projectorschrisrobschu
The application of solid-state fabricated carbon nanotube sheets as thermoacoustic projectors is extended from air to
underwater applications, thereby providing surprising results. While the acoustic generation efficiency of a liquid immersed nanotube
sheet is profoundly degraded by nanotube wetting, the hydrophobicity of the nanotube sheets in water results in an air envelope
about the nanotubes that increases pressure generation efficiency a hundred-fold over that obtained by immersion in wetting alcohols.
Due to nonresonant sound generation, the emission spectrum of a liquid-immersed nanotube sheet varies smoothly over a wide
frequency range, 1-105 Hz. The sound projection efficiency of nanotube sheets substantially exceeds that of much heavier and thicker
ferroelectric acoustic projectors in the important region below about 4 kHz, and this performance advantage increases with decreasing
frequency. While increasing thickness by stacking sheets eventually degrades performance due to decreased ability to rapidly transform
thermal energy to acoustic pulses, use of tandem stacking of separated nanotube sheets (that are addressed with phase delay) eliminates
this problem. Encapsulating the nanotube sheet projectors in argon provided attractive performance at needed low frequencies, as
well as a realized energy conversion efficiency in air of 0.2%, which can be enhanced by increasing the modulation of temperature.
Thermophones using carbon nanotubes and alternative nanostructures for high p...chrisrobschu
There is a large promise for thermophones in high power sonar arrays, flexible loudspeakers and noise cancellation devices. The freestanding aerogel-like carbon nanotube sheet as a thermoacoustic (TA) heat source demonstrates so far the best performance. However, the limited accessibility of large size free standing carbon nanotube sheets and other even more exotic materials published recently, hampers the field. I present here new alternative materials for TA heat source with high energy conversion efficiency, additional functionalities, environmentally friendly and cost effective production technologies. I discuss the TA performance of alternative nanoscale materials and compare their spectral and power dependencies of sound pressure in air. The study presented here focuses on engineering of thermal gradients in the vicinity of nanostructures and subsequent heat dissipation processes from the interior of encapsulated thermoacoustic projectors. Applications of TA projectors for high power SONAR arrays, sound cancellation, and optimal thermal design, regarding enhanced energy conversion efficiency, are discussed.
Faceplate NOV 2012 Page 19, Vic Maroldachrisrobschu
See FacePlate NOV2012 Page 19 for retirement article on Vic Marolda and description of the Engineering and Dive Support Unit (EDSU) work and the Naval Undersea Warfare Center (NUWC)
Faceplate nov2012 marolda
Sonardyne International has sold and delivered additional Sentinel Intruder
Detection Sonar Systems for the US Navy. They will be used for the Integrated
Swimmer Detection Program managed by the Naval Underwater Warfare Center
(NUWC) in Newport RI. Ordered in October 2009, the systems were delivered and
commissioned within six weeks.
SRNL Acceptability Envelope metal hydrideschrisrobschu
The design and evaluation of media-based hydrogen storage systems requires the use of
detailed numerical models and experimental studies, with significant amount of time and
monetary investment. Thus a scoping tool, referred to as the Acceptability Envelope, was
developed to screen preliminary candidate media and storage vessel designs, identifying
the range of chemical, physical and geometrical parameters for the coupled media and
storage vessel system that allow it to meet performance targets. The model which
underpins the analysis allows simplifying the storage system, thus resulting in one inputone
output scheme, by grouping of selected quantities.
Two cases have been analyzed and results are presented here. In the first application
the DOE technical targets (Year 2010, Year 2015 and Ultimate) are used to determine the
range of parameters required for the metal hydride media and storage vessel. In the second
case the most promising metal hydrides available are compared, highlighting the potential
of storage systems, utilizing them, to achieve 40% of the 2010 DOE technical target. Results
show that systems based on LiMg media have the best potential to attain these performance
targets.
Srnl acceptability
envelope_metal_hydride_h2_int_j_hydrogen_energy_2012_37
Investigation of Metal and Chemical Hydrides for Hydrogen Storage in Novel Fu...chrisrobschu
DOE Funded Activities
Objectives:
•Use engineering analyses to screen H2 storage systems against DoD targets & requirements (FY15)
•Identify suitable hydrogen storage materials and suitable vehicle demonstration platforms
•Develop a preliminary design of an integrated UUV design with a solid hydrogen storage system
•Complete detailed design of the hydrogen storage system
•Complete integrated system design
ONR/NUWC Funded Activities
Objectives:
•
Design and build a small bench-scale, alane-based, hydrogen storage vessel
•
Perform preliminary testing on the bench-scale, storage system
•
Package and ship bench-scale vessel and alanematerial to the Navy NUWC
•
Provide technical support to Navy NUWC for their further testing and evaluation
Doe amr st134_motyka_2016_p
Investigation of Solid State Hydrides For Autonomous Fuel Cell Vehicleschrisrobschu
Joint Department of Energy Department of Navy
Hydrogen storage material aluminum hydride, or Alane, for Unmanned Undersea Vehicles
St134 teprovich 2017_o
Presentation: DOE Stetsoon Hydrogen Storage technologieschrisrobschu
Hydrogen Storage Technologies –
A Tutorial
with Perspectives from the US National Program
Ned T. Stetson
U. S. Department of Energy
1000 Independence Ave., SW
Washington, DC 20585
Materials Challenges in Alternative and Renewable Energy
Cocoa Beach, FL
February 22, 2010
• Why do we need better hydrogen storage?
• Physical storage technologies
– Liquid
– Compressed
– Cryo-compressed
• Materials-based storage technologies
– Hydrogen sorbents
– Metal hydrides
– Complex hydrides
– Chemical hydrogen storage
Doe stetson hydrogen_storage_technologies_tutorial
Fuel Cells for Unmanned Undersea Vehicles (UUVs) 16MAR2016chrisrobschu
There is a naval need for an air-independent advanced electric power source with high energy storage for unmanned undersea vehicles (UUV).
Current battery systems can not meet mission requirements.
Proton exchange membrane fuel cells (PEMFC) and solid oxide fuel cells (SOFC) are being investigated due to higher efficiencies and energy densities.
System safety must meet requirements for approval.
PEMFC and SOFC have been identified to meet UUV requirements due to their high efficiency and improved energy density over current battery systems.
Many options for reactant storage, critical for system energy.
System safety is critical for approval.
ONR BAA objectives to deliver TRL-6 fuel cell system for UUVs.
Fuel cells for uu vs 16_mar2016
Presentation: Power & Eenrgy for Unmanned Undersea Vehicles (UUVs)chrisrobschu
UUV and UDNS Energy & Power Technology Challenges
Energy and power density plus:
• Air-independent operation
• Refuelability
• Multi-mission capability
• Stealth
• Safety
• Environmentally benign
• Endurance (high energy density)
• Weight/volume constraints
• Buoyancy
• Quick start-up
• Low/no signature
• Cost effective
Power and energy_sources_10-27-11
Interim Guidance for Adopting Fuel Cell Technology into the Navy Fleetchrisrobschu
Purpose: Disseminate Proposed SG270 Fuel Cell Interim Guidance
Hazard Assessment Process
Provide updates since guidance was published ~FY13
Goal: Solicit feedback from Stakeholders
Comments, Questions
Possible revisions to process
Develop approval process so early designs can be influenced to increase chance of approval
Sg270 fc brief_17_nov2016_01b_public_release
Lithium Ion Conductive Glass Ceramics:
Properties and Application
in Lithium Metal Batteries
Kousuke Nakajima a, Takashi Katoh a,
Yasushi Inda a, Brion Hoffman b
aOHARA-INC., 1-15-30 Oyama, Chuo-ku, Sagamihara-shi, Kanagawa 252-5286, Japan
bOHARA CORPORATION, 23141 Arroyo Vista,Suite 200,
Rancho Santa Margarita, CA 92688, United States
Symposium on Energy Storage Beyond Lithium Ion; Materials Perspective,
October 7-8, 2010 Oak Ridge National Laboratory
Kousuke Nakajima, OHARA INC.
8th October, 2010
Session8 240-nakajima
Lithium Ion Conductive
Glass Ceramic Electrolyte
Very high theoretical specific energy: 8572 Wh/kg of Li and 4578 Wh/L of Li
Quiet, Minimal Signature, Long shelf life (no self discharge)
Potentially safer to store than Li-ion (No Cathode in storage)
• External Attributes:
• Entire anode is surrounded by Seawater Environment
• Laminate Material cold formed to encase lithium slug
• Pouch designed to Collapse as lithium reservoir is depleted
Ø Pressure tolerant
Ø Minimal pressure differential across Ceramic Membrane
• Package assembled and heat sealed
4
• Internal Attributes:
• Lithium reservoir (Slug)
Ø Can be scaled for Mission Duration
• Typical Li Metal Disc
Ø 1.75” OD, 0.2” Thick
• Non Aqueous Electrolyte
• Nickel Current collector
Ø Cold Welded to Lithium Slug
• Ni Electrical Tabs
Electrochemical Performance Of Pressure Tolerant Anodes For A Li-seawater Ba...chrisrobschu
Electrochemical Society Meeting
Electrochemical Performance Of Pressure Tolerant Anodes For A Li-seawater Battery
Autonomous undersea systems are being developed for a variety of US Navy mission scenarios.
The mission duration of autonomous undersea vehicles and sensors is limited by the amount of onboard energy.
Objective:
Develop a novel energy source with increased energy density for increased mission duration.
Also must be:
Safe
Robust
Long shelf life
Pressure tolerant
Reasonable cost
Air independent
Very high theoretical specific energy:
8572 Wh/kg of Li and 4578 Wh/L of Li (seawater cathode)
Don't need to carry seawater or oxygen.
Practical battery energy density depends on efficient packaging of Li and voltage.
Primary (one use) battery
Reserve Battery
Long shelf life – no self discharge
Potentially safer to store than commercial Li batteries
Ecs spring meeting_2009
Presentation Power Sources Lithium Seawater Battery (LiSWB)chrisrobschu
A lithium-seawater battery is being developed for
undersea sensors and vehicles. This new energy source promises
significantly higher energy density than Commercial Off the Shelf
(COTS) primary batteries for air independent, undersea
operations. The critical enabler for this effort is a water and gas
impermeable, glass-ceramic electrolyte (GCE). The electrolyte
provides an ionic pathway between lithium and seawater and it
prevents direct contact between them. As a result, anodes made
with GCEs have shown high voltage and high efficiency in
aqueous electrolytes. The lithium metal anode is encased in a
collapsible pouch composed of a flexible laminate and a thin (250
μm) glass-ceramic electrolyte “window”. The aluminum foil
based laminate is impermeable to water and atmospheric gases.
A metal tab protrudes from the pouch as an electrical lead and a
non aqueous Li-ion electrolyte fills the gap between Li and the
ceramic membrane. Critical elements for high efficiency and high
voltage are low pouch permeability (keeping water and
atmospheric gases out and nonaqueous electrolyte in), the shape
of the pouch with respect to collapse and pressure tolerance, and
the electrochemical performance of the GCE pouch anodes in seawater.
Power sources spring2010-presentation schumacher
Lithium-Seawater Battery for Undersea Sensors and Vehicleschrisrobschu
Abstract: A lithium-seawater battery is being developed for
undersea sensors and vehicles. This new energy source promises
significantly higher energy density than Commercial Off the Shelf
(COTS) primary batteries for air independent, undersea
operations. The critical enabler for this effort is a water and gas
impermeable, glass-ceramic electrolyte (GCE). The electrolyte
provides an ionic pathway between lithium and seawater and it
prevents direct contact between them. As a result, anodes made
with GCEs have shown high voltage and high efficiency in
aqueous electrolytes. The lithium metal anode is encased in a
collapsible pouch composed of a flexible laminate and a thin (250
μm) glass-ceramic electrolyte “window”. The aluminum foil
based laminate is impermeable to water and atmospheric gases.
A metal tab protrudes from the pouch as an electrical lead and a
non aqueous Li-ion electrolyte fills the gap between Li and the
ceramic membrane. Critical elements for high efficiency and high
voltage are low pouch permeability (keeping water and
atmospheric gases out and nonaqueous electrolyte in), the shape
of the pouch with respect to collapse and pressure tolerance, and
the electrochemical performance of the GCE pouch anodes in
seawater.
Keywords: Lithium Primary Battery; Seawater Battery;
Li Ion Conducting Ceramic;
2 1 power-sources_lisfc
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Fundamentals of Electric Drives and its applications.pptx
US Undersea Warfare Science & Technology Objectives and US Unmanned Undersea Vehicles (UUV) Overview
1. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
U.S. Undersea Warfare
Science and Technology Objectives
and
U.S. UUV Overview
Dr. Vittorio Ricci
Chief Technology Office
Naval Undersea Warfare Center
FR – U.S. SNNR Meeting
October 2016
2. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Briefing Outline
A short NUWC overview
USN Undersea Warfare Science and
Technology Objectives (STOs)
UUVs as Technology Challenge
2
3. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
NUWC Mission and Vision
Mission
Vision
The Naval Undersea Warfare Center Division Newport provides research, development,
test and evaluation, engineering, analysis and assessment, as well as Fleet support
capabilities for submarines, autonomous underwater systems, and offensive and defensive
undersea weapon
systems, and stewards
existing and emerging
technologies in support of
undersea warfare.
Fleet undersea
superiority –
today and tomorrow
3
4. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Division Newport Providing Expertise
in Submarine Technology
Submarine Unmanned
Aircraft Systems
Periscopes, Imaging Systems, & Antennas
Sail
Arrays
Sonar Room
Tomahawk
Integration
Launchers
Spherical
Array
UUVs
Torpedoes Launchers
Hull Arrays
Towed Arrays
Countermeasures
Towed Array
Handlers
Combat Control
Systems
Fire Control SystemsAcoustic Transducers & Windows
Exterior Comms Electronic Warfare
4
5. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Surface Ship USW Offensive and Defensive Systems
Off-board and Distributed USW Systems
Sonar Processing
Torpedoes
Towed Arrays
And Transmitters
Countermeasures
Towed Array
Handlers
Sonar
USW Modules for Unmanned
Surface Vehicles
Torpedo Tubes
Littoral
Combat Ship
Mission
Modules
Approved for Public Release; Distribution Unlimited. (23 Sept 2016). 5
6. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
• On Demand System Upgrades
• Adaptive Task Management
• Automated Tactical Agents
• Flexible Payload Support
• Distributed Sensing for
Missions from Under the Sea
• Multifunction masts combining
communications, EW, and Imaging
• Stealthy communications
to support interoperability
• Multi-Phenomenology
Sensor Field
• Coatings: Biofouling &
Anti-Corrosion
• Undersea Autonomous
Influence Convergence
• Autonomy
• Long Endurance Power Sys.
• Multi-Vehicle Collaboration
• Biomimetic Vehicles
• Modular masts
• Multi-spectral imaging
• Panoramic imaging and display
• Advanced Human Machine
Interface
• Transformational Weapons Integration
to expand mission portfolio and use
available volume most efficiently
• Indiscriminate Target Tracking
• Adaptive Signal Processing
& Sensors
• Distributed & Autonomous
Sensors
Platform Defense
Division Newport
Contributing to the U.S. Navy After Next
Own the Best
Grow longer arms
Beat the adversary's "system"
Protect our Strategic Assets and Threaten Theirs
Get on the same page
Get faster
Be the Best*
• Shorten kill chain
• Adaptive Systems and Technologies
to Outpace the Threat
• Virtual Environment for M&S
and Training
• Evolving National Maritime and
Naval Strategies
• Design for USW
– Resource constrained environment
– Rapidly evolving threat capabilities
• Wargames
• Innovation Events
* Commander's Intent for the United Stated Submarine Force and Supporting Organizations" - December 2015
Theater Based Undersea
Warfare Capabilities Sensors & Sonar Platform & Payload
Integration Communications USW Imaging
USW Combat Systems
Ranges USW Weapons &
Autonomous Vehicles Electronic Warfare
Undersea
Warfare Analysis
Cooperative Force
Torpedo Defense
Undersea Distributed
Networked Systems
6
7. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
U.S. Undersea Warfare
Science and Technology
Objectives*
* Reference: Undersea Warfare Science and Technology Objectives, USW CTO Dated Sept 2016
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8. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
USW STO Overview
• STOs describe how the USN’s USW S&T priorities are
established
• STOs facilitate the alignment and prioritization of USN S&T
investments with USW technologies and capability
requirements
• STOs centralize S&T investment to support and enable:
– the USN USW Strategic S&T Focus Areas
– U.S. Commander, Submarine Force’s
• Four Lines of Effort (Commander’s Intent)
• Dominance Goals
DISTRIBUTION A: Approved for Public Release.
8
9. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
STOs Support and Enable
• Provide Ready Forces
• Maximize Employment Effectiveness
• Develop Future Force Capabilities
• Empower People;
The Foundation of our Strength
• Assure Access to Maritime Battlespace
• Autonomy and Unmanned Systems
• Undersea Maneuver Warfare
• Expeditionary and Irregular Warfare
• Information Dominance
• Own the Best
• Beat the Adversary’s Systems
• Grow Longer Arms
• Protect Our Strategic Assets, Threaten Theirs
• Be the Best
• Get on the Same Page
• Get Faster
USN USW S&T Focus Areas
COMSUBFOR Dominance GoalsCOMSUBFOR Commander’s Intent
• Platform Design and Survivability
• Power and Energy
• Strike and Integrated Defence
• Warfighter Performance
• Undersea Precision Navigation and Timing
USN Direction
USN Investments
Execute
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10. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
STOs & Lines of Effort
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11. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
STOs &USW Dominance Goals
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12. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Example: USW S&T Focus Areas
- Power and Energy -
• Power and Energy Science and Technology Objectives:
1. Develop safe reliable, affordable and high efficiency energy management,
generation, transfer, shipment, deployment, and storage for undersea
platforms;
2. Develop safe, reliable, affordable and efficient high pulse power
management, generation, transfer and employment;
3. Develop the capability to reliably and safely harvest, obtain, store and
transfer energy to undersea assets;
4. Develop capability to reliably characterize the failure effects and modes of
power and energy sources.
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13. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
UUV Technical Challenges
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14. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Unmanned Systems
and Guidance
• Increase capabilities and performance
• Provide the new capabilities rapidly
• Produce affordable systems
These needs create challenges and opportunities for Unmanned Undersea
Vehicle technology development
Plans provide a broad list of
application areas, capabilities and
technologies are defined; enabling
focus for technology developments
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15. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Unmanned Systems
Development
• Unmanned Systems Integrated Roadmap
– “articulates vision and strategy for … unmanned systems
and technology…”
– “technological vision for next 25 years”
• Innovation for unmanned and undersea systems is
providing important technologies that will more
rapidly enable additional capabilities and new
missions for unmanned systems
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16. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
UUV Plan
• Four general vehicle classes:
– Man Portable (approximately 25 to 100+ lbs displacement)
– Light Weight (approximately 500 lbs displacement)
– Heavy Weight (approximately 3000 lbs displacement)
– Large (approximately 20,000 lbs displacement)
• Develop UUV Standards and Modularity
• Invest in critical technologies:
– Autonomy
– Energy and propulsion
– Sensors and sensor processing
– Communications/navigation
– Engagement/intervention
• Increase experimentation with UUV technologies
• Introduce UUV systems into the fleet quickly
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18. Way Ahead – UUV example
• Future UUS
• System of
unmanned systems
• Undersea
Constellation
Nodes
Next Generation
Modularity
Commonality
Near Term Future
Today’s Technology
Tomorrow’s
Capabilities
Concept
Development/
Concept
Generation
Open
Architecture
and Standard
Interfaces
Fleet Experimentation
Lab & Industry
Vehicles
• REMUS 100, 600
• LTV48
• 21 UUV
• MARV
• RAZOR
• Marlin
• Echo Ranger
• Proteus
Navy
Systems
• REMUS 100, 600, 6000
• LBS Gliders/AUV
• Mk 18 Mods 1/2
• P1319
• Bluefin 9, 12, 21
• Knifefish
• Iver
• LTV38
• LDUUV INP
Today’s Vehicles
Approved for Public Release; Distribution Unlimited. (23 Sept 2016). 18
19. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
UUV Energy System Options
• Batteries
• Fuel Cells
• Heat Engines
• Thermoelectric
• Hybrid systems
• Semi Cells
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20. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
UUV Energy System
Challenges
• Safe operation and storage
• Minimize dependence on
external air
• High reliability
• Quick turn on and shut down
• Neutral buoyancy
• Minimize noise and
discharges
• Refueling needs to be safe
and quick
• Clean/Green
• Allow varying position/
placement under both
operational and storage
conditions
• Minimize cost to purchase
and maintain
• Efficient operation
• Scalable
• Minimize or eliminate hull
penetrations
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21. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Extending Duration and
Persistence
• Obtain energy from ocean surface or water column
• Rapid deployment
– i.e., deployment from surface vehicle or air vehicle
• In situ energy system refuel/recharge
• Docking UUVs
• Transferring power wirelessly from an underwater docking
station to a UUV
• Snorkeling
21
22. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Energy & Payload
• Lithium Ion Battery Pack
Delivered to NUWC for
Evaluation
– 2.4X Lead Acid Energy Expected
for MARV (20Hrs vs 8Hrs)
– In Water Testing since 2005
– Weight and Length Reduction
• 155lbs and 24” less
Energy & Endurance
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23. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Past 21UUV Vehicle Payload
Demonstrations
Vision Based Navigation Configuration
Advanced Torpedo Acoustics
AN/BLQ-11 Propulsor Characterization
Integrated Motor Propulsor Demonstrations
Advanced FLS Demonstrations
ISR & Advanced Autonomy Demo’s
Obstacle Avoidance Forward Look Sonar
Side Scan Sonar Demonstrations
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24. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
NUWC Newport AUV Capabilities
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AUTONOMY
CONTROLLER
•Maintain Situation
Awareness (SA)
•Plan/ Replan/ Optimize
•Monitor sortie plan
•Preserve high level
system safety
Programming and Control System
(Collocated Authorized Client)
PAYLOAD
CONTROLLER
•Execute PL plan *
•Control PL elements
•Monitor PL status
•Monitor/report PL PMFM
•Track (SA) processing *
Low Level Hardware Safeties
Vehicle Subsystem Payload (PL) Subsystem
PAYLOAD
ELEMENTS
•Sensors
•Recording *
•Actuators *
Local Comms
UUV System Control Authority
Or Payload Data End User
(Remote Authorized Client)
Remote Comms
Local Comms
PL commands, PL
nav data
PL status, PL
PMFM, sensor data,
maneuver / comms
request
Vehicle status,
Nav data, Vehicle
PMFL, Vehicle
sensor data, Comms
data
Vehicle
commands,
Comms data
PL element
commands
PL element
status, PL
sensor data
VEHICLE
CONTROLLER
•Control Vehicle elements
•Preserve UUV safety
•Monitor vehicle status
•Monitor/report PMFL
•Relay comms data
Vehicle
element
commands,
Comms data
Vehicle element
status, Vehicle
sensor data,
Comms data
Alternate Remote Comms
Standard Communications paths
Optional Communications paths
VEHICLE
ELEMENTS
•Energy
•Propulsion
•Navigation
•Sensors
•Comm
•Recording
•Pingers
•Actuators
UUV System * If applicable
Structural & CFD Analysis
Autonomous Architecture
Navigational Technologies
Energy Alternatives
Shock & Vib Analysis
Novel Designs
System Integrations
Acoustic Test Facility
Anechoic Chamber
Fleet SIM Exercises
EMI Testing
HWIL Testing
At Sea OperationsShipping & Handling
Wind & Water Tunnels
Sub Launch Tubes
Battery Charging
FACILITIES ENGINEERING
FLEET INTEGRATION
AUV Division Lab Range Support Inner Range Outer Range
SHORE FACILITY
NUWC Newport, RI
System TEMPALTS
Mission CONOP Support - Acquisition Support - Sensor & Communications Development
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25. Approved for Public Release; Distribution Unlimited. (23 Sept 2016).
Recommendations
• Within 4 months, schedule a follow-up meeting comprised of
Research and Development Leadership to identify USW areas
for further technical discussions
• Draft the appropriate administrative documents
• Each side identify one Organization as the “Forcing Functions”
to ensure progress on both sides
• Within one year, demonstrate to SNNRs progress on technical
exchange
– specific end-goal of identifying and on the way to executing joint
cooperative work
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