National Renewable Energy Laboratory’s Post

I am delighted to share our latest research, recently published in International Communications in Heat and Mass Transfer, which investigates the influence of shell geometry on the thermal performance of latent heat storage units. Our study shows that the horizontal obround shell improves heat transfer rates and speeds up the melting process compared to circular shells, as demonstrated through visualization experiments and numerical simulations. These insights are instrumental in advancing the design and efficiency of thermal energy storage systems. We invite you to explore the full paper using the link below: https://lnkd.in/eutnzxNB #ThermalEnergyStorage #HeatTransfer #RenewableEnergy #CFD #EngineeringResearch #visualization📊🔍👨🔬

Look at the new benchmark for modelling reactive flow and transport relevant to CCS. It is very promising that all 6 participants converged to similar answers within this very complex type of simulation. Thanks to my collaborators who helped with organizing this benchmark study: Stephan de Hoop, Michel Kern, Brahim Amaziane, Etienne Ahusborde and all the participants! https://lnkd.in/e8wNZtFv https://lnkd.in/e9bEpjSY

Evaluating wind loading using CFD and validation: If you are interested in the state-of-the-art numerical wind load and response evaluation for tall buildings and its validation in comparison with the industry wide accepted boundary layer wind tunnel measurements, please check out the following new paper published with Abiy. Merry Christmas! and Happy holidays!

"There is nothing critical about supercritical. Supercritical is a thermodynamic expression describing the state of our systems where there is no clear distinction between the liquid and the gaseous space. And actually, supercritical fossil-fired plants, they have been operating at supercritical conditions since the 1960s. This technology is mature. It is available, and is nothing that we cannot achieve. It is a proven technology." Learn more about SCWR technology and why we shouldn't 'throw water out of the window'! https://lnkd.in/dzwjg4jq

I am excited to share our paper about applying computational fluid dynamics method to study the performance of a laminar gas inlet for aircraft-based gas-aerosol sampling, used in the Technological Innovation Into Iodine and GV Environmental Research (TI3GER) project. This paper provides our evaluation of different turbulent models and the observations of the correlations among inlet designs, flow features, and gas sampling efficiency. As the first part of our studies on this inlet, we verified the suitable turbulent model to predict the turbulent intensity inside the inlet and found the ideal conditions to reduce gas transmission loss. The next study will focus on comparisons between gas measurements and model predictions. This is my first publication as the first author, and I am very grateful for all the contributions from my co-authors Suresh Dhaniyala, Rainer Volkamer, Roy Mauldin, Margarita Reza and all the people who helped with our studies. Special thanks to Prof. Suresh Dhaniyala and Prof. Rainer Volkamer for all the support and help during the publishing process. #computationalfluiddynamics #windtunnel #turbulence https://lnkd.in/gVRgRpP4

Magnificence of aerodynamics of the wind turbine

If you are interested to learn a bit more about the current hype of the potential discovery of superconductivity at room temperature, I can recommend watching this video explaining the physics behind it and potential applications such as: 💡 The creation of an electricity transportation system free of resistance. This could allow us to establish extensive solar panel farms in desert regions and distribute the generated energy globally without any losses. 🚅 The democratization of Maglev trains. Currently, these trains necessitate substantial energy and upkeep due to their intricate cryogenic cooling systems. 🏥 A significant reduction in the operating costs of MRIs, as they would no longer require the costly and scarcely available liquid helium coolant. Should the research laid out in the paper be independently verified, it could mark the start of a new era - truly a great time to be alive! Watch the video here: https://lnkd.in/e3i6RWAf

Hello everyone, I am happy to share my new paper, which was recently accepted to be published in the International Journal of Electrical Power and Energy Systems. Title: A probabilistic load flow for unbalanced three-phase islanded microgrids using Unscented Transformation Using the Unscented Transformation, the main contribution is a Probabilistic Power Flow (PFF) for Unbalanced Islanded Microgrids.  a) Load and Wind Generation Uncertainties are considered. b) The droop effect in dispatchable generators is considered together with the steady-state frequency variation. c) The Unscented Transformation is used to solve the PPF: different from the Monte Carlo Simulation that employs a larger set of samples probabilistically calculated, the UT employs a reduced set of samples calculated deterministically.  d) Results for two microgrids show a significant reduction of computational time, maintaining the precision compared with the Monte Carlo Simulation. DOI: https://lnkd.in/d8q8ybjx PDF available: https://lnkd.in/dNCNv69t. #IJEPES #Elsevier #Microgrids #SmartGrids #UnscentedTransform #MonteCarloSimulation #Uncertainties

Revolution might be just here... ⚡ A truly Eureka moment in science!! Science tells us to be cautious, to wait for due validation, and a thorough peer review... but I can do nothing but be excited at the tremendous possibilities that arise from this scientific achievement. First comments and reviews from the scientific community show excitement and validation that this might be it!! "For the first time in the world, we succeeded in synthesizing the room-temperature superconductor (T c≥400K, 127∘C) working at ambient pressure with a modified lead-apatite (LK-99) structure." #sciencematters #sciencenews #superconductivity #revolution #energy https://lnkd.in/dg-idUsa