Results 61 to 70 of about 740 (163)
Energies, 2023 This work shows the results of an experimental campaign carried out in two spark ignition engines, a small optical research engine and its commercial counterpart, using a turbulent ignition system (pre-chamber) specifically designed for small engines ...
Paolo Sementa +4 more
doaj +1 more source
Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites
Advanced Engineering Materials, Volume 27, Issue 10, May 2025.The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono +2 more
wiley +1 more source
ChemCatChem, Volume 17, Issue 7, April 4, 2025.Na‐promoted Fe catalysts are investigated to produce high‐molecular hydrocarbons using the CO‐based Fischer–Tropsch synthesis. Highest hydrocarbon formation rates occur in the inlet part of the catalyst due to the substantial presence of Fe carbides. The Fe carbides react with the formed water to produce FT‐inactive Fe3O4 along the reactor.
Christian Schmidt +2 more
wiley +1 more source
Energy Technology, Volume 13, Issue 4, April 2025.Ammonia's combustion still presents challenges, including the formation of NOx emissions. Therefore, knowing the onset of radicals across the flame can help in mitigating unwanted pollutants while maximizing flame control. This document addresses the change of position of various excited radicals, method that through relatively simple systems can ...
Marco Osvaldo Vigueras‐Zuniga +4 more
wiley +1 more source
Aspects of Ammonia as Green Fuel for Propulsion Systems of Inland Water Vessels
Energy Technology, Volume 13, Issue 2, February 2025.Within the CAMPFIRE project, an ammonia‐powered propulsion concept is being developed for use in inland water vessels. The core of the system is an ammonia‐fueled high‐speed engine that drives a generator. A cracker splits some of the ammonia into hydrogen and nitrogen to ensure better ignition and efficient combustion.
Annalena Braun +13 more
wiley +1 more source
Advances in Mechanical Engineering, 2022 Pre-chamber jet ignition technology can effectively improve flame propagation speed and in-cylinder combustion rate, so it is conducive to the improvement of thermal efficiency and fuel economy.
Li Zhang +5 more
doaj +1 more source
Energy Science &Engineering, Volume 12, Issue 10, Page 4773-4787, October 2024.The authors comprehensively reviewed the fundamental reasons and mechanism of cycle‐to‐cycle variations (CCVs) of a spark ignition (SI) engine. In addition, the characteristic parameters and characterization methods of the CCV, the laws and influencing factors of the CCV, and the numerical simulation methods of the CCV were introduced in detail to ...
Xiongbo Duan, Lining Feng, Yan Xia
wiley +1 more source
Oil & Gas Science and Technology, 2006 Certaines techniques récemment développées pour la modélisation mathématique et les investigations expérimentales sur moteur Diesel sont présentées. On insiste sur l'importance de la validation croisée entre calcul et mesure.
Douaud A., Pinchon P.
doaj +1 more source
Technical Aspects of Natural Gas Pyrolysis in Liquid Metal Bubble Column Reactors
Energy Technology, Volume 12, Issue 9, September 2024.The Karlsruhe Institute of Technology has intensified the development of the liquid metal bubble columns technology. Various key aspects have been addressed, such as scale‐up and natural gas pyrolysis. Herein, further developments for a following pilot‐scale system have been investigated.
Christoph Hofberger +9 more
wiley +1 more source
CO2 emissions and delivery time of last‐mile drone delivery using trucks
IET Intelligent Transport Systems, Volume 18, Issue 1, Page 101-113, January 2024.Analyzed effects of drone‐and‐truck delivery strategies for a last‐mile parcel delivery in terms of CO2 emissions and delivery times. A simultaneous operation of drones and trucks could reduce CO2 emissions and delivery times, concurrently. 1.5‐km flight performance of the delivery drone is required for the best drone‐and‐truck delivery strategy for ...
Sung Ho Hur, Minsu Won
wiley +1 more source