Adonis Zheng’s Post

#mdpienergies #highlycitedpaper Two- and Three-Stage Natural Gas Combustion System—Experimental Comparative Analysis 👉 https://ow.ly/k3Ls50S9ceZ Politechnika Poznańska #combustionsystem #TJIsystem #prechamber #combustionprocessrepeatability #combustionefficiency

I am glad to share the publication of Energies MDPI: 📑 Title: Study on Rapid Simulation of the Pre-Cooling Process of a Large LNG Storage Tank with the Consideration of Digital Twin Requirements 👥 Authors: Yunfei Zhao, Caifu Qian, Guangzhi Shi, Mu Li, Zaoyang Qiu, Baohe Zhang and Zhiwei Wu You can find the publication at the link below: https://lnkd.in/gJ4iKY-Q 🔊 This article belongs to the Special Issue "Fluid Flow, Heat Transfer, and Mass Transport Analysis for the Optimization of Sustainable Energy Systems" by Dr. Tehmina Ambreen as Guest Editor: https://lnkd.in/gEAbZhdG 📆 The deadline for manuscript submissions is January 15, 2025 💡 We also welcome all to join in our Special Issue #Energies #Energy #FluidFlow #HeatTransfer #HeatTransport #MassTransport #HeatandMassTransport #SustainableEnergySystem #EnergyGeneration #EnergyConversion #EnergyStorage #EnergyUtilization #ThermalManagement #Heating #Cooling #Transportation #Thermofluids #HeatExchangers #ThermalComfort #Nanofluids #PhaseChangeMaterials #LNG #LNGStorageTank #PhaseChange #NumericalSimulation #DigitalTwin

Our article "Model predictive control of a dual fluidized bed gasification plant" has been published in Applied Energy (open access). Dual fluidized bed (DFB) gasification is used to produce gaseous energy carriers from biogenic feedstocks and can thus contribute to the substitution of fossil fuels. In our work, we developed a model predictive control strategy to control the main process variables in a dual fluidized bed gasification plant. Our controller was implemented and tested at the 100 kW pilot plant at TU Wien. You can find the results in our paper! Many thanks to Alexander Bartik, Martin Hammerschmid, Stefan Janković, Florian Benedikt, Stefan Müller, Alexander Schirrer, Stefan Jakubek, and Martin Kozek for collaborating on this work. https://lnkd.in/dDVnBG47

We’re excited to introduce the Hiden Analytical QGA 2.0, our next-generation gas analyser designed for a wide range of research and industrial applications. Whether it's analysing volcanic gases, aiding in carbon capture, or supporting green hydrogen research, the QGA 2.0 stands out as a versatile and reliable tool. Key applications include: - Volcanic Gas, Water, and Sediment Analysis - Green Hydrogen Research - Carbon Capture Process Optimization - Fermentation/Bio Reactor Monitoring - Gas Production and Storage Analysis - Gas Separation Studies - Glovebox Monitoring - High Purity Gas Analysis - Human Breath Analysis for Medical Research The QGA 2.0 sets a new standard in gas analysis, offering precision and adaptability across diverse sectors. To learn more about how this advanced system can support your work, visit https://buff.ly/4fIBPBl #GasAnalysis #HidenAnalytical #ScientificInnovation

Our paper "Stage-wise kinetic analysis of ammonia addition effects on two-stage ignition in dimethyl ether" has been accepted by the Journal of Energy Resources Technology (Impact Factor 2.6), and is scheduled to be published in 2025. The accepted version is now available online at

🚀 Hydrogen Technology News! 🌊⚡ The proposal on Accelerated Stress Testing (AST) protocols for Low-Temperature Water Electrolyser (LTWE) is published! This document outlines protocols designed to assess the performance degradation of LTWE stacks. These stacks play a crucial role in generating large quantities of clean hydrogen through water electrolysis, powered primarily by renewable energy sources. 💧💡 With these protocols in hand, researchers and industry leaders can effectively evaluate the performance degradation of different LTWEL technologies, including: 1️⃣ Alkaline Water Electrolysis (AEL) in an Alkaline Water Electrolyser (AWE) 2️⃣ Anion Exchange Membrane Water Electrolysis (AEMEL) in an Anion Exchange Polymer Membrane Water Electrolyser (AEMWE) 3️⃣ Proton Exchange Membrane Water Electrolysis (PEMEL) in a Proton Exchange Polymer Membrane Water Electrolyser (PEMWE) Use the insights for 🔍 Evaluating Research and Development (R&D) progress 🎯 Setting Research and Innovation (R&I) priorities with cost targets, development milestones, and technological benchmarks 🤝 Making informed decisions regarding technology selection. You can find the full document here: https://lnkd.in/eK_r2S85 EU Science, Research and Innovation #HydrogenTechnology #CleanEnergy #Innovation #Sustainability

New article published for the better understanding of the N2O emissions from the nitrogen removal in bioreactors. Similarly to CH4 gas emissions, this topic has gone quite unnoticed in the water sector, but it will become much more relevant in a near future since the new Urban European Wastewater Directive seems to extend N-requierements to the biggest facilities, which will have a more relevant impact to be calculated. In this paper, we developed an innovative ASM-N2O CFD model calibrated with experimental measurements in a full-scale bioreactor to calculate N2O gas emissions. Thanks to Rica Yuge Qiu for the huge work developed during last years in her PhD, and to all the co-authors, speacially Benedek Plósz, the promoter behind all this. #CFD_modelling #Wastewater_treatment #greenhouse_gas_emissions https://lnkd.in/dKGxNRyD

Welcome back to our Energy series, Science vs. Fiction! Last time we posed the challenge about evaluating the efficacy of H2S scavenger treatment by measuring the remaining H2S concentration in the headspace above the liquid. The verdict: Science! This method is frequently used to evaluate the performance of H2S scavengers in a liquid phase. The original expression of Henry’s Law states that the concentration of a liquid phase molecular species is directly proportional to the partial pressure of that species in the gas phase. Since partial pressure is simply another expression of gas phase concentration, Henry’s Law equally well states that the concentration of a liquid phase species is directly proportional to the concentration of that species in the gas phase. Since it is much easier to measure H2S concentration in the gas than liquid phase, the reduction of headspace H2S concentration is often monitored to assess the relative performance of a series of scavengers, very often as a field capable test. It is important to remember, however, that the headspace concentration is much higher than the liquid phase concentration, albeit directly proportional to it. Tune in again for your next challenge! In the meantime, visit arxada.com for more information about our products and services. #WeAreArxada #oilandgas #energy #h2sscavengers

Happy to share the results of an exciting collaboration between GETEF, MYER, Bundesanstalt für Materialforschung und -prüfung & Fundación Cidaut research groups. #Thermodynamic (p, ρ, T) characterization of a reference high-calorific #natural_gas mixture when #hydrogen is added up to 20 % (mol/mol) The injection of hydrogen into the natural-gas grid is an alternative during the process of a gradual decarbonization of the heat and power supply. When dealing with hydrogen-enriched natural gas mixtures, the performance of the reference equations of state habitually used for natural gas should be validated by using high-precision experimental thermophysical data from multicomponent reference mixtures prepared with the lowest possible uncertainty in composition. In this work, we present experimental density data for an 11-compound high-calorific (hydrogen-free) natural gas mixture and for two derived hydrogen-enriched natural gas mixtures prepared by adding (10 and 20) mol-% of hydrogen to the original standard natural gas mixture. The three mixtures were prepared gravimetrically according to ISO 6142–1 for maximum precision in their composition and thus qualify for reference materials. A single-sinker densimeter was used to determine the density of the mixtures from (250–350) K and up to 20 MPa. The experimental density results of this work have been compared to the densities calculated by three different reference equations of state for natural gas related mixtures: the AGA8-DC92 EoS, the GERG-2008 EoS, and an improved version of the GERG-2008 EoS. While relative deviations of the experimental density data for the hydrogen-free natural gas mixture are always within the claimed uncertainty of the three considered equations of state, larger deviations can be observed for the hydrogen-enriched natural gas mixtures from any of the three equations of state, especially for the lowest temperature and the highest pressures. https://lnkd.in/dwbmkYAY

Differentiating a fully miscible solution of A (e.g. water) in B (e.g. alcohol) from a solution of B in A is a hard and potentially meaningless epistemological question. In a recent paper (https://lnkd.in/gAgZGjhB) we found that there may be a reasonable answer if we consider three states: solution A, bicontinuous microstructure, and solution B. In our most recent work (https://lnkd.in/gZAQCBsk), we find that at higher concentrations seven (and potentially more) organic solvents capacity to precipitate CaSO4 all converge on a similar aqueous composition of ~5 waters to 1 solvent. This ratio matches a continuous pseudo-clathrate solution structure that may define the limit of the aqueous phase and the aqueous half of the bicontinuous microstructure. As always it is great to to look at fundamental mechanisms, structures, and relationships while trying to solve applied challenges. This paper was possible thanks to Ashini Jayasinghe, Caleb Stetson, Christopher J. Orme, Meng Shi, Trevi Systems, Idaho National Laboratory, and DOE's Solar Energy Technology Office (SETO) for supporting the American-Made Solar Desalination Prize.