Results 81 to 90 of about 13,935 (250)

Autoignitions and detonations in engines and ducts [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
The origins of autoignition at hot spots are analysed and the pressure pulses that arise from them are related to knock in gasoline engines and to developing detonations in ducts. In controlled autoignition engines, autoignition is benign with little knock.
openaire   +2 more sources

Periodic Table of Immunomodulatory Elements and Derived Two‐Dimensional Biomaterials

Advanced Science, Volume 12, Issue 6, February 10, 2025.
Two‐dimensional (2D) nanomaterials, possessing unique physiochemical properties, revolutionize the field of biomedical engineering to address critical diagnostic and therapeutic challenges. This review unveils the periodic table of 2D immunomodulatory elements, assessing synthesis, properties, immunomodulatory mechanisms and biocompatibility.
Alireza Rafieerad, Leena Regi Saleth, Soofia Khanahmadi, Ahmad Amiri, Keshav Narayan Alagarsamy, Sanjiv Dhingra   +5 more
wiley   +1 more source

Combustion analysis in a natural gas engine with pre-chamber by three-dimensional numerical simulation

Nihon Kikai Gakkai ronbunshu, 2015
Highly efficient natural gas engines have been widely used in wide range of sectors from industry and transportation. However, because combustion process in gas engines with a pre-chamber is very complicated, it is difficult to experimentally investigate
Satoshi HOKIMOTO, Tatsuya KUBOYAMA, Yasuo MORIYOSHI, Toshio YAMADA   +3 more
doaj   +1 more source

Large‐Scale H2 Storage and Transport with Liquid Organic Hydrogen Carrier Technology: Insights into Current Project Developments and the Future Outlook

Energy Technology, Volume 13, Issue 2, February 2025.
The liquid organic hydrogen carrier (LOHC) technology represents an excellent solution for large‐scale storage and safe transportation of hydrogen. This article presents LOHC technology, recent progress, as well as further potential of this technology with focus on benzyltoluene as the carrier material.
Max M. Distel, Joao M. Margutti, Jonas Obermeier, Andreas Nuß, Ina Baumeister, Maryna Hritsyshyna, Alexander Weiß, Michael Neubert   +7 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, Niklas Gierenz, Samuel Braun, Heiko Kubach, Sören Bernhardt, Sascha Prehn, Moritz Müller, Lena Engelmeier, Lukas Fehlemann, Michael Steffen, Torsten Baufeld, Günther Neuhaus, Karsten Müller, Hinrich Mohr   +13 more
wiley   +1 more source

Effect of preheated air temperature on a liquid ammonia flash spray in a swirl combustor

Droplet, Volume 4, Issue 1, January 2025.
With the increase of preheated air temperature, the spray morphology changes remarkably and a conspicuous decline in spray volume can be observed. At a lower preheated air temperature of 300 K, a substantial number of droplets populate the entire combustion chamber, with many colliding with the chamber walls.
Jiawen Liu, Meng Zhang, Zhenhua An, Jinhua Wang, Zuohua Huang   +4 more
wiley   +1 more source

The Future of Engine Knock and Fuel Octane Numbers in the Era of Biofuels and Vehicle Electrification

Future Transportation
Engine knock remains a critical limitation in spark-ignition engine design. Future hybrid powertrains employ downsized engines operating on Atkinson cycles, creating different knock conditions compared to modern naturally aspirated or turbocharged ...
Vikram Mittal, Reagan Eastlick
doaj   +1 more source

A Pressurized Vitiated Co-Flow Burner and Its Preliminary Application for a Methane Lifted Flame

Energies, 2018
A new pressurized vitiated co-flow burner (PVCB) was designed and built for the investigation of lifted flame properties and was supported by a vitiated co-flow of hot combustion products from a lean H2/air flame at a controllable pressure; its ...
Qiushi Qin, Zhijun Wu, Qing Zhang, Wei Xie, Liguang Li, Jun Deng   +5 more
doaj   +1 more source

Experimental and modeling study of the low-temperature oxidation of large alkanes [PDF]

, 2008
This paper presents an experimental and modeling study of the oxidation of large linear akanes (from C10) representative from diesel fuel from low to intermediate temperature (550-1100 K) including the negative temperature coefficient (NTC) zone.
Battin-Leclerc, Frédérique, Biet, Joffrey, Glaude, Pierre-Alexandre, Hakka, Mohammed Hichem, Warth, Valérie   +4 more
core   +3 more sources

STUDY OF THE FORMATION OF MULTICOMPONENT TITANIUM COATINGS ON STEELS UNDER NON-STATIONARY TEMPERATURE CONDITIOS [PDF]

, 2018
Study of the formation of multicomponent titanium coatings on steels under non-stationary temperature ...
PALEHOVA, I., SEREDA, B.
core