Results 91 to 100 of about 877,280 (360)
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa +4 more
wiley +1 more source
Comparison of Mixing Characteristics for Several Fuel Injectors at Mach 8, 12, and 15 Hypervelocity Flow Conditions [PDF]
CFD analysis is presented of the mixing characteristics and performance of three fuel injectors at flight Mach numbers of 8, 12, and 15. The Reynolds-averaged simulations (RAS) were carried out using the VULCAN-CFD solver.
Baurle, Robert A. +4 more
core +1 more source
Due to growing environmental concerns and stringent emissions regulations, optimizing the fuel consumption of marine propulsion systems is crucial. This work deals with the potential in an LNG ship propulsion system to reduce fuel consumption through ...
Siniša Martinić-Cezar +3 more
doaj +1 more source
The integration of photovoltaic (PV) systems into building structures introduces distinct fire risks with critical implications for occupant safety. This review examines the key fire hazards associated with PV implementation and explores mitigation strategies, including flame‐retardant additives.
Florian Ollagnon +7 more
wiley +1 more source
Forecasting world and regional aviation Jet-Fuel demands to the mid term (2025). [PDF]
This article provides jet fuel demand projections at the worldwide level and for eight geographical zones until 2025. Air traffic forecasts are performed using dynamic panel-data econometrics.
Chevallier, Julien +2 more
core
Methods for Fuel Consumption Reduction in Commercial Vehicles
The following means to reduce fuel consumption by commercial vehicles were examined: decrease of aerodynamic drag and tire drag; optimization of engine and transmission characteristics, and optimization of their operation modes.
D.Kh. Valeev, V.S. Karabtsev
doaj
Most matter is nominally frozen in the polar regions or space, and liquid crystal materials are no exception. Consequently, soft actuators, including liquid crystal elastomers (LCEs), are inoperative under such extreme cold in response to stimuli, as their motion relies on mechanical deformation.
Hyeonseong Kim +5 more
wiley +1 more source
A multi-objective optimisation model for a general polymer electrolyte membrane fuel cell system [PDF]
This paper presents an optimisation model for a general polymer electrolyte membrane (PEM) fuel cell system Suitable for efficiency and size trade-offs investigation.
Ang, SMC, Brett, DJL, Fraga, ES
core
The consistency of the potential increase of fuel efficiency, based on aircraft maintenance optimization, is mathe- matically proved. The mathematical apparatus and a set mathematical model of aircraft spatial motion allow to analyze aircraft behavior on
Y. M. Chinyuchin, V. A. Belkin
doaj
Design of a Ship Speed Control System Using Hybrid Propulsion Based on Fuzzy Logic
The maritime transportation sector, especially in archipelagic countries like Indonesia, faces significant challenges in optimising ship speed and fuel efficiency, particularly when using hybrid propulsion systems.
Fajar Surya Muhammad Aldoko +4 more
doaj +1 more source

