Results 51 to 60 of about 405 (181)

Cross‐System Comparative Techno‐Economic and Environmental Evaluation of MCFC Integration in Power and Biogas Upgrading Systems

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Achieving net‐zero or carbon‐negative energy systems requires technologies capable of generating power while capturing or utilising CO2 without significant efficiency losses. Molten carbonate fuel cells (MCFCs) offer such potential, yet their techno‐economic competitiveness across different energy systems remains insufficiently quantified.
Kazeem Ayodeji Mohammed, Amirpiran Amiri, Ehsan Baniasadi, Robert Steinberger-Wilckens, Ahmad Azmin Mohamad   +4 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

Maximizing Biochar Climate Change Mitigation Impact Through Optimized Logistics

GCB Bioenergy, Volume 17, Issue 10, October 2025.
This study shows that optimizing site selection and transportation can double the climate mitigation potential of forestry harvest residues derived biochar in British Columbia compared to random deployment. The work highlights the importance of spatially explicit modeling and transport optimization in maximizing CDR effectiveness.
David Lefebvre, Matthieu Heitz, Jack Edgar, Xiaotao Bi, Jeroen Meersmans, Jean‐Thomas Cornelis   +5 more
wiley   +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

The Quest for the Quark‐Gluon Plasma From the Perspective of Dynamical Models of Relativistic Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 7-8, September 2025.
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
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

On the Equivalence Between Null Space and Orthogonal Space in Latent Variable Regression Modeling

Journal of Chemometrics, Volume 39, Issue 8, August 2025.
ABSTRACT The concepts of null space and orthogonal space have been developed in independent contexts and with different purposes: the former arises in the inversion of partial least‐squares (PLS) regression models, and the latter in orthogonal PLS (O‐PLS) modeling.
Sergio García‐Carrión, Francesco Sartori, Joan Borràs‐Ferrís, Pierantonio Facco, Massimiliano Barolo, Alberto Ferrer   +5 more
wiley   +1 more source

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

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

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