SEARCH · Engineering Papers
Results for “Lessons learned”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Lessons Learned in Resiliency - Strengthening International Nuclear Security Cooperation.
Abstract not provided.
Approaching the Final Frontier: Lessons Learned from the Deployment of HPE/Cray EX Spock and Crusher supercomputers
Explore the source record for details and available documents.
Community Energy Planning: Best Practices and Lessons Learned in NREL's Work with Communities
The clean energy transition is accelerating due to local, state, and national actions combined with external market forces. Regardless of where goals are set and decisions are made, clean energy deployment occurs on the ground in communities. As a result, communities increasingly need technical expertise and assistance with planning for and managing the energy transition. Building on decades of work with state, local, and tribal jurisdictions, the National Renewable Energy Laboratory (NREL) increasingly provides community-driven modeling, analysis, and technical assistance to enable more data-driven and equitable community energy planning. To inform and enhance NREL's capabilities in community energy planning and provide a resource for others working in this space, the Joint Institute for Strategic Energy Analysis (JISEA) Sustainable Communities Catalyzer supported this best-practices presentation based on interviews with seasoned NREL practitioners and a literature review on equitable community energy planning. Findings include five best practices for community energy planning that NREL practitioners and others can apply to strengthen their impact: 1) do your homework in preparation for community interactions; 2) be humble, authentic, and honest in your interactions with community members; 3) respect community agency in every step of the process; 4) meet the community where they are; 5) democratize participation.
Agent-Based Modeling for the Circular Economy: Lessons Learned From Three Case Studies
The circular economy (CE) aims at decoupling human activities from resource use, creating wealth in the process. Recently, many scholars have questioned the link between increased circularity and sustainability, resulting in many methodological approaches being developed for that purpose. This presentation summarizes the insights gained from the application of agent-based modeling (ABM) to study the techno-economic and social conditions promoting circularity and sustainability of three technologies: photovoltaic (PV) modules, hard disk drives (HDDs), and wind blades. Four main categories of agents are defined in the ABM: asset owners, service providers (e.g., refurbishers), recyclers, and manufacturers. Two main CE strategies are represented: lifetime extension (through repair or reuse) and recycling. The developed models start by projecting installed capacities and end-of-life (EOL) quantities. Then the theory of planned behavior - a social psychology model explaining behavior adoption based on attitude, peer influence, and costs - is used to model the asset owners' EOL decision (i.e., landfill, recycle or extend the lifetime of the asset). Then, the quantities of assets flowing to the recycler and service provider agents and quantities of materials flowing to manufacturers are computed. Recyclers' economies of scale are dynamically modeled, and the value generated by the CE strategies for the recyclers, service providers, and manufacturers is computed within the model. When data are available, avoided greenhouse gas emissions resulting from the CE strategies adoption are calculated exogenously from the ABM simulations. Results show that with improved used PV modules warranties, the reuse CE strategy adoption increases from 1% to 23% between 2020 and 2050. Similarly, improved standards could enhance HDDs end-users trust in data-wiping - a prerequisite to reuse - leading to a 3-fold increase in the reuse rate and avoid about 5 million tons of CO2 eq by 2050. Regarding wind blades, 5-15 years lifetime extension could reduce EOL blade quantities by 13%. High costs and logistic issues prevent blades from being recycled in greater quantities. One insight from the case studies is the necessity to have mature secondary markets for reuse to be a viable option. Interestingly, PV reuse is limited by the willingness of PV owners to purchase used modules (on the demand side), while HDDs reuse is constrained by the lack of trust toward data-wiping (limiting the supply of used HDDs). The six limits of the CE concepts presented by Korhonen et al. (2018) are finally used to interpret the results. The HDD case study is an exemplary lock-in, where the first accepted practice (shredding) retains most of the market. The PV results illustrate the technical limitation to reuse, as the growing demand cannot be supplied entirely with used PV modules. The wind case study shows the relevance of clearly defining physical flows - what type of waste should wind blades be considered, how should they be transported and landfilled? - a crucial consideration that also applies to PV modules. Finally, the three case studies highlight the relevance of studying a technology's technical, economic, and market material efficiency potentials altogether and the potential benefit of coupling ABM to life cycle assessment.
Transferring Photovoltaic Lessons Learned to Concentrating Solar Power
This presentations outlines the following: 1) Points worth noting in the history of the PV industry, 2) PV benefits from standardization, 3) PV sharing reliability challenges since the 1975, 4) PV projects from an independent engineering (IE) perspective, 5) Site selection (what NOT to do), 6) PV Operations & Maintenance over time, 7) Soiling research (remove the silos), 8) Noting a few relevant PV IEC standards, and 9) PVfleets data sharing.
Energy-Economy-Environment: Lessons Learned from the Integration and Analysis of Over Half a Century of Offshore Energy Infrastructure Incident Reports
AGU Fall Meeting 2022, Chicago, IL, December 12-16, 2022
Lessons Learned in Projecting the Monitoring of Nuclear Material Production into the Field
Explore the source record for details and available documents.
LESSONS LEARNED FROM EXPLORING SAFETY, SECURITY, AND SAFEGUARDS INTERFACES IN ADVANCED AND SMALL MODULAR REACTOR TECHNOLOGIES.
Abstract not provided.
Vegetation Management Lessons Learned and Helpful Tools
The InSPIRE Project is investigating questions around vegetation management and agrivoltaics at solar sites across the US. Results from research at three Enel Green Power pollinator-friendly solar sites in Minnesota have shown that the success of different pollinator-friendly seed mixes depend on the ecoregion and can vary from site to site. Results from the Enel Green Power sites also showed that weed coverage decreases dramatically by three years post seeding. The InSPIRE project has also created resources like The 5 C's of Agrivoltaics and an online agrivoltaics financial calculator to help farmers, land owners, developers, and facility operators with vegetation management at solar facilities. The PV-SMaRT calculator was created by the University of Minnesota in partnership with NREL to help with questions surrounding storm-water runoff at PV sites.
Lessons Learned from Removals of Category 1 and 2 Disused Sealed Radioactive Sources
Explore the source record for details and available documents.
Lessons Learned from RELAP5-3D Modeling of HTTF
Modeling of HTTF using the RELAP5-3D ring model has shown an inability to predict transient temperature rise during HTTF experiments. This presentation provides an overview of the RELAP5-3D ring model, the HTTF modeling activities using the ring model, and reasons why the models failed to reproduce measured temperature rise. It also presents an overview of the path forward for RELAP5-3D modeling of HTTF to better predict the behavior of HTTF experiments
The Kokkos OpenMPTarget Backend: Implementation and Lessons Learned
Explore the source record for details and available documents.
Battery Storage Unlocked: Lessons Learned From Emerging Economies
The Clean Energy Ministerial (CEM) is a global forum that promotes policies and programs that advance clean energy technology. The CEM's mission is to bring together a community of global leaders to scale clean energy, amplifying the impact to all the sectors of the economy and applying a whole-of-society approach to meet collective climate and clean energy goals. At COP28 in Dubai, United Arab Emirates, the CEM announced the Supercharging Battery Storage Initiative as a vehicle to accelerate battery storage deployment around the world. The initiative supports countries around the world in co-creating strategies that enhance policy, regulation, supply chain, manufacturing, and financing solutions for battery energy storage deployment. Additionally, the initiative seeks to reduce the cost of the technology and promote diversified, sustainable, and secure supply chains (CEM n.d.). Through international collaboration, the initiative supports the integration of renewable energy globally, while securing the stability and reliability of the electricity grid.
Lessons Learned for Responsible Use of Cloud in the Cirrus Project, Following the CrowdStrike Outage Event
A disruption in CrowdStrike’s Falcon cybersecurity platform on July 19th, 2024, caused worldwide chaos. This event highlights the imperative need for cloud security measures for networks that are critically reliant on cloud technology. This incident negatively impacted air travel, government networks, and critical infrastructure sectors such as hospitals and financial institutions. While no electric utilities had a physical impact, and few had an IT impact, there were issues created by loss of cloud services, and other interrelated industries. For utilities and energy distribution organizations, understanding and mitigating these risks is essential. The Cirrus tool offers a strategic solution engineered to weave cloud integration seamlessly into the fabric of operational management, thereby enhancing resilience and streamlining efficiency in the face of digital challenges.
Lessons Learned During UCl3-NaCl Fuel Salt Capsule Irradiation
NA
Lessons Learned In How to Conduct Loop and Irradiated Salt Experiments: Workshop II
Explore the source record for details and available documents.