Results 51 to 60 of about 394 (180)

Spent Media Management Pathways for PFAS Treatment Applications

Water Environment Research, Volume 97, Issue 7, July 2025.
PFAS‐laden spent media requires downstream management, with significant operating costs, regulatory uncertainty, and ongoing technology development. Virgin media production is the largest contributor to life‐cycle costs and energy, so media management pathways including regeneration and reactivation can lower costs, depending on capital equipment needs.
Alison L. Ling, Tiffany Stegner, Margaret Thompson, Sudhakar Viswanathan, Brian R. Pinkard, Kathryn M. Wolohan, Don E. Richard, Anderson Ellis   +7 more
wiley   +1 more source

Enhancing Ignition Reliability with Tail-Groove Strut Designs in Cavity-Based Combustors

Applied Sciences
As the flight envelopes of turbine-based combined cycle (TBCC) engines expand, ensuring reliable ignition and flame stability under varying conditions becomes increasingly critical. Previous work has shown a significantly changed ignition performance and
Haihong Chen, Shilong Zhao
doaj   +1 more source

Green Ammonia as a Decentralized, Cross‐Sector Energy Vector for the German Energy Transition

Chemie Ingenieur Technik, Volume 97, Issue 6, Page 599-607, June 2025.
The Fraunhofer flagship project “AmmonVektor” brings together eight Fraunhofer Institutes to develop innovative technologies for decentralized ammonia synthesis, utilization, and logistics. The aim is to establish ammonia as a key technology to enhance Germany's energy sovereignty.
Clara Maria Watermann, Tim Nitsche, Lénárd‐István Csepei, Andreas Menne, Barbara Zeidler‐Fandrich   +4 more
wiley   +1 more source

Effect of incineration, co‐incineration and combustion on TSE hazards in category 1 animal by‐products

EFSA Journal, Volume 23, Issue 5, May 2025.
Abstract The European Commission requested EFSA to assess the effect of incineration, co‐incineration and combustion of Category 1 animal by‐products (ABP) on the BSE/TSE hazards in ash resulting from these treatments. The presence of residual TSE hazards is assessed by detection of prion infectivity or seeding activity.
EFSA Panel on Biological Hazards (BIOHAZ), Ana Allende, Avelino Alvarez‐Ordóñez, Valeria Bortolaia, Sara Bover‐Cid, Alessandra De Cesare, Wietske Dohmen, Laurent Guillier, Lieve Maria Herman, Liesbeth Jacxsens, Lapo Mughini‐Gras, Maarten Nauta, Jakob Ottoson, Luisa Peixe, Fernando Perez‐Rodriguez, Panagiotis Skandamis, Elisabetta Suffredini, Olivier Andreoletti, Vincent Béringue, John Griffin, Marion Simmons, Kamela Kryemadhi, Barbara Lanfranchi, Angel Ortiz‐Pelaez, Romolo Nonno   +24 more
wiley   +1 more source

Sound power level spectra of an installed General Electric F404 engine [PDF]

JASA Express Letters
A sound power spectrum analysis has been conducted on a T-7A-installed F404 engine, for operating conditions spanning intermediate thrust to afterburner.
Hunter J. Pratt, Logan T. Mathews, Tyce W. Olaveson, Kent L. Gee   +3 more
doaj   +1 more source

The Heisenberg‐RIXS instrument at the European XFEL

Journal of Synchrotron Radiation, Volume 32, Issue 1, Page 29-45, January 2025.
The aim of this work is to present Heisenberg RIXS at the European XFEL, the first high‐resolution soft X‐ray instrument enabling time‐resolved resonant inelastic X‐ray scattering close to the transform limit from solid and liquid‐jet samples. The optical design, mechanical layout and performance are described in detail and discussed in a broader ...
Justine Schlappa, Giacomo Ghiringhelli, Benjamin E. Van Kuiken, Martin Teichmann, Piter S. Miedema, Jan Torben Delitz, Natalia Gerasimova, Serguei Molodtsov, Luigi Adriano, Bernard Baranasic, Carsten Broers, Robert Carley, Patrick Gessler, Nahid Ghodrati, David Hickin, Le Phuong Hoang, Manuel Izquierdo, Laurent Mercadier, Giuseppe Mercurio, Sergii Parchenko, Marijan Stupar, Zhong Yin, Leonardo Martinelli, Giacomo Merzoni, Ying Ying Peng, Torben Reuss, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Tim Laarmann, Simo Huotari, Christian Schroeter, Burkhard Langer, Tatjana Giessel, Jana Buchheim, Grzegorz Gwalt, Andrey Sokolov, Frank Siewert, Robby Buechner, Vinicius Vaz da Cruz, Sebastian Eckert, Chun-Yu Liu, Christian Sohrt, Christian Weniger, Annette Pietzsch, Stefan Neppl, Friedmar Senf, Andreas Scherz, Alexander Föhlisch   +47 more
wiley   +1 more source

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

Energies, 2020
This study dealt with evaluating the (J85-GE-5H) military turbojet engine (TJE) in terms of exergetic and advanced exergetic analyses at Military (MIL) and Afterburner (AB) process modes by utilizing kerosene (JP-8) and hydrogen (H2) fuels. First, exergy
Burak Yuksel, Ozgur Balli, Huseyin Gunerhan, Arif Hepbasli   +3 more
doaj   +1 more source

Comments on the Quantum Afterburner

, 2007
A process has been proposed to increase the efficiency of an ideal Otto cycle via a quantum heat engine that has no cooler reservoir. We show that such a process is not feasible.
Gyftopoulos, Elias P., von Spakovsky, Michael R.   +1 more
openaire   +2 more sources

A Comprehensive Study on Hydrogen Production via Waste Heat Recovery of Gas Turbine Cycles in Cogeneration Power‐Hydrogen Layouts: 4E Study and Optimization

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
The efficient utilization of waste energy in gas turbine (GT) cycles (GTCs) is a crucial aspect of sustainable energy production. While previous studies have explored various aspects of waste energy recovery, a comparative analysis of different bottoming configurations has been lacking.
Mohammad Zoghi, Nasser Hosseinzadeh, Saleh Gharaie, Ali Zare, Panagiotis Grammelis   +4 more
wiley   +1 more source

Lithium‐Metal‐Free Sulfur Batteries with Biochar and Steam‐Activated Biochar‐Based Anodes from Spent Common Ivy

ENERGY &ENVIRONMENTAL MATERIALS, Volume 7, Issue 6, November 2024.
This study proposes novel materials based on spent common ivy that can serve as alternatives to critical raw materials such as lithium and graphite in next‐generation lithium‐ion batteries (LIBs). The cell, based on ivy biochar anode and sulfur cathode, exhibits higher energy density compared to conventional LIBs and higher cycling stability compared ...
Pejman Salimi, Willem Vercruysse, Susana Chauque, Saeed Yari, Eleonora Venezia, Amine Lataf, Nahal Ghanemnia, Muhammad Shajih Zafar, Mohammadhosein Safari, An Hardy, Remo Proietti Zaccaria, Dries Vandamme   +11 more
wiley   +1 more source