This study analyzed replacing heavier steel vehicle bodies with lighter aluminum to determine the fuel economy and cost benefits when paired with hybrid and diesel powertrains. It found that aluminum bodies allowed for smaller, less expensive powertrains while maintaining performance. This led to improved fuel economy of 13.5% for hybrids and 13.1% for diesels compared to steel bodies. Aluminum bodies also provided the most cost-effective improvement per additional mile per gallon gained. Overall, lighter aluminum vehicles enabled faster payback periods for consumers through better fuel economy and lower operating costs.
Comparative Assessment of Two Thermodynamic Cycles of an aero-derivative Mari...IOSR Journals
Abstract: This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling and
thermal recuperation as an engineering option available in the design of gas turbines and offered for marine
applications. It examines the off-design performance of two different cycle designs of a 25MW aero-derivative
engine by modelling and simulating each of them to operate under conditions other than those of their design
point. The simple cycle model consists of a single-spool dual shaft layout while the advanced model is
represented by an intercooled-recuperated cycle that runs on a dual-spool and is driven through a three shaft
configuration. In each case, the output shaft is coupled to a power turbine through which the propulsion power
may be transmitted to the propeller of the vessel to operate in a virtual marine environment. An off-design
performance simulation of both engines has been conducted in order to investigate and compare the effect of
ambient temperature variation during their part-load operation and particularly when subjected to a variety of
marine operating conditions. The study assesses the techno-economic impact of the complex design of the
advanced cycle over its simple cycle counterpart and demonstrates its potential for improved operating cost
through reduced fuel consumption as a significant step in the current drive for establishing the marine gas
turbine engine as a viable alternative to traditional prime movers in the ship propulsion industry.
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
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
The silent/self paced version with appendices. A slide show of the slide in the above voice annotated one above but with appendices. There are a few words over the appendix in the YouTube version.
http://www.youtube.com/watch?v=b-G8Kj5594w&feature=plcp
Comparative Assessment of Two Thermodynamic Cycles of an aero-derivative Mari...IOSR Journals
Abstract: This paper explores the gas turbine potentials that are fully enhanced by the use of intercooling and
thermal recuperation as an engineering option available in the design of gas turbines and offered for marine
applications. It examines the off-design performance of two different cycle designs of a 25MW aero-derivative
engine by modelling and simulating each of them to operate under conditions other than those of their design
point. The simple cycle model consists of a single-spool dual shaft layout while the advanced model is
represented by an intercooled-recuperated cycle that runs on a dual-spool and is driven through a three shaft
configuration. In each case, the output shaft is coupled to a power turbine through which the propulsion power
may be transmitted to the propeller of the vessel to operate in a virtual marine environment. An off-design
performance simulation of both engines has been conducted in order to investigate and compare the effect of
ambient temperature variation during their part-load operation and particularly when subjected to a variety of
marine operating conditions. The study assesses the techno-economic impact of the complex design of the
advanced cycle over its simple cycle counterpart and demonstrates its potential for improved operating cost
through reduced fuel consumption as a significant step in the current drive for establishing the marine gas
turbine engine as a viable alternative to traditional prime movers in the ship propulsion industry.
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
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
The silent/self paced version with appendices. A slide show of the slide in the above voice annotated one above but with appendices. There are a few words over the appendix in the YouTube version.
http://www.youtube.com/watch?v=b-G8Kj5594w&feature=plcp
Hybrid pneumatic engine with exhaust heat recoveryLiviu Giurca
The invention relates to a four-stoke hybrid pneumatic engine of the type ensuring energy recovery, which can be used for road motor vehicles or other transportation means with a view to reducing the fuel consumption and emissions which are deemed to cause the greenhouse effect. According to the invention, the hybrid pneumatic engine has a number of cylinders which are of the conventional type and at least one modified cylinder operating an active valve actuated by a mechatronic system.
Hybrid pneumatic engine with exhaust heat recoveryLiviu Giurca
The invention relates to a four-stoke hybrid pneumatic engine of the type ensuring energy recovery, which can be used for road motor vehicles or other transportation means with a view to reducing the fuel consumption and emissions which are deemed to cause the greenhouse effect. According to the invention, the hybrid pneumatic engine has a number of cylinders which are of the conventional type and at least one modified cylinder operating an active valve actuated by a mechatronic system.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Enhancing Performance with Globus and the Science DMZGlobus
ESnet has led the way in helping national facilities—and many other institutions in the research community—configure Science DMZs and troubleshoot network issues to maximize data transfer performance. In this talk we will present a summary of approaches and tips for getting the most out of your network infrastructure using Globus Connect Server.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Le nuove frontiere dell'AI nell'RPA con UiPath Autopilot™UiPathCommunity
In questo evento online gratuito, organizzato dalla Community Italiana di UiPath, potrai esplorare le nuove funzionalità di Autopilot, il tool che integra l'Intelligenza Artificiale nei processi di sviluppo e utilizzo delle Automazioni.
📕 Vedremo insieme alcuni esempi dell'utilizzo di Autopilot in diversi tool della Suite UiPath:
Autopilot per Studio Web
Autopilot per Studio
Autopilot per Apps
Clipboard AI
GenAI applicata alla Document Understanding
👨🏫👨💻 Speakers:
Stefano Negro, UiPath MVPx3, RPA Tech Lead @ BSP Consultant
Flavio Martinelli, UiPath MVP 2023, Technical Account Manager @UiPath
Andrei Tasca, RPA Solutions Team Lead @NTT Data
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Welcome to the first live UiPath Community Day Dubai! Join us for this unique occasion to meet our local and global UiPath Community and leaders. You will get a full view of the MEA region's automation landscape and the AI Powered automation technology capabilities of UiPath. Also, hosted by our local partners Marc Ellis, you will enjoy a half-day packed with industry insights and automation peers networking.
📕 Curious on our agenda? Wait no more!
10:00 Welcome note - UiPath Community in Dubai
Lovely Sinha, UiPath Community Chapter Leader, UiPath MVPx3, Hyper-automation Consultant, First Abu Dhabi Bank
10:20 A UiPath cross-region MEA overview
Ashraf El Zarka, VP and Managing Director MEA, UiPath
10:35: Customer Success Journey
Deepthi Deepak, Head of Intelligent Automation CoE, First Abu Dhabi Bank
11:15 The UiPath approach to GenAI with our three principles: improve accuracy, supercharge productivity, and automate more
Boris Krumrey, Global VP, Automation Innovation, UiPath
12:15 To discover how Marc Ellis leverages tech-driven solutions in recruitment and managed services.
Brendan Lingam, Director of Sales and Business Development, Marc Ellis
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
1. FASTER CONSUMER PAYBACK ON HYBRID
AND DIESEL POWER WITH ALUMINUM
It is well known that hybrid and diesel powertrains provide improved fuel economy
“The next logical evolution for today’s cars and trucks, but at an increased initial cost to the consumer.
in auto design should be to Compared to gasoline engines with equivalent performance levels, these advanced
powertrains have various payback periods to the consumer of up to several years.
match powertrain advances
As automakers around the globe are battling a widening array of industry challenges
with improvements in
including the need for more fuel-efficient, safe and affordable products, there is
vehicle structures by
clearly an intensifying amount of pressure to quickly find and implement innovative,
reducing their weight. cost-effective and long-term solutions. With that in mind, the Aluminum Association
Moving to lighter vehicles along with IBIS Associates, an independent consulting firm specializing in technical
with materials such as and economic analysis of materials in manufacturing technology, analyzed the
current cost penalties associated with both hybrids and diesels to determine what
aluminum will help save
could be gained by replacing their heavier steel bodies with low-weight, high-
consumers money at the
strength aluminum.
pump, help save fuel overall
This study demonstrates that by reducing the weight of the vehicle, the horsepower
and even help save the and torque requirements can be correspondingly reduced, leading to a lighter, more
planet through reduced affordable powertrain and vehicle that pays the consumer back quicker as a result of
emissions.” improved fuel economy and fewer trips to filling stations.
Randall Scheps – Chairman
The Aluminum Association’s
Aluminum Transportation Group
STUDY FINDINGS
ff Advanced powertrains can produce further impressive fuel economy gains
with faster payback for consumers, making these newer powertrains more cost
effective when matched up with a lighter aluminum vehicle structure.
ff A smaller and less expensive hybrid or diesel powertrain is sufficient to match
the performance of the heavier steel vehicle, and can potentially achieve a more
significant fuel savings with this combination of lightweight structure and smaller
powertrain.
ff Using fuel prices at the time the study was conducted, the baseline conventional
powertrain steel vehicle, driven 12,000 miles, would cost the consumer
approximately $1,700 per year. An equivalent aluminum/diesel combination would
only cost just over $1,300, a savings of almost $400 per year.
ff Aluminum structured hybrids received 13.5 percent better fuel economy than
steel-bodied hybrids; similarly, the aluminum-bodied diesel saw a 13.1 percent
improvement in fuel economy when compared to the steel-bodied diesel vehicle.
The following table shows there is a strong correlation between lightweighting with
aluminum and improving the fuel economy of both hybrid- and diesel-powered
vehicles.
www.AluminumInTransportation.org
2. ff The baseline steel vehicle noted in the table has the would require a less-powerful engine to achieve equivalent
lowest cost but delivers the mpg (miles per gallon). All performance. Powertrain and associated “energy storage”
other options to increase fuel economy come with an systems were then resized to meet the performance
increased cost. requirements.
ff In terms of ranking, the aluminum baseline vehicle, Total vehicle cost was assessed through a model where
at $44 cost per mpg and a 10 percent potential mpg power (horsepower and torque) was calculated according
improvement, is the most cost effective. to vehicle performance requirements, acceleration, payload,
ff The aluminum structure with a diesel engine provided a air resistance, rolling resistance, etc. Using this approach,
cost per mpg improvement of $104, a 46 percent potential vehicles of different mass or design had their powertrain
improvement in mpg. requirements sized for functional equivalence.
ff The hybrid powertrain offers the largest potential Data was collected on a wide range of hybrid system
improvement in mpg as seen by the 51 percent gain at components to establish relevant component cost and mass.
$173 cost per mpg. From this data, system costs and mass were calculated for
projected requirements of each system. Diesel powertrain
costs were assessed as the differential manufacturing
cost for the base engine relative to a conventional internal
combustion engine as well as the incremental exhaust
control and treatment requirements.
CONCLUSIONS
Alternative powertrains cost more for the improvements they
offer, and also bring with them an added penalty for weight,
further complicating their value proposition. The research
shows that when evaluating the efficiency of the cost of the
METHODOLOGIES next mile per gallon improvements, aluminum provides the
best alternative for hybrid- and diesel-powered vehicles. The
Midsize automobiles were used exclusively in the study and
cost for providing a lightweight or lower mass body structure
included: separate steel- and aluminum-bodied vehicles with
per miles per gallon improvement is less than the cost for the
conventional gas, hybrid and diesel powertrains.
next increment of power needed for the heavier versions of
The steel-bodied vehicle with conventional powertrain and the hybrids and diesels.
its performance and manufacturing parameters served as
In other words, by reducing the weight of the vehicle, the
a basis for the comparison of alternative scenarios which
power requirements can be correspondingly reduced,
would achieve equivalent performance, (e.g., acceleration,
leading to a more affordable powertrain and vehicle with a
range and utility), with reduced fuel consumption or
shorter payback period for consumers. The bottom line when
operating costs.
it comes to next generation hybrid- and diesel-powered
The comparable combinations of vehicle structures vehicles: reduce weight, improve fuel economy, reduce
and powertrain technologies were also assessed using emissions and save consumers money faster.
“functionally equivalent” designs whereby a lighter vehicle
www.AluminumInTransportation.org