Results 121 to 130 of about 187,058 (317)

BZ-BattExt – DMFC as Battery-Extender in solar-boat application [PDF]

, 2011
For special applications Direct Methanol Fuel Cells (DMFC) are close to commercial application or already commercialized today. However for the step from laboratory to a broader market of fuel cells, a significant cost reduction, as well as an ...
Krajinovic, Katica, Häring, Thomas, Kopf, Joachim, Nettesheim, Stefan, Schirmer, Johannes, Zabold , Jochen, Reissner, Regine, Kopf , Joachim, Steinhart, Klaus, Zabold, Jochen   +9 more
core  

Design improvement of circular molten carbonate fuel cell stack through CFD Analysis [PDF]

, 2011
Molten carbonate fuel cell (MCFC) is a promising technology for distributed power generation. The core of an MCFC power generation unit is the stack, where various fuel cells are connected together in series and parallel in order to obtain the desired ...
Sciacovelli, Adriano, Adriano Sciacovelli, Verda, Vittorio, Vittorio Verda   +3 more
core   +1 more source

Methods for Fuel Consumption Reduction in Commercial Vehicles

Механика машин, механизмов и материалов, 2014
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  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

MATHEMATICAL ASPECTS OF AIRCRAFT ENGINES RUNNING OPTIMIZATION FOR MINIMUM FUEL CONSUMPTION WHILE LANDING

Научный вестник МГТУ ГА, 2017
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

Emitor: Jurnal Teknik Elektro
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, Edi Kurniawan, Romanda Annas Amrullah, Henna Nurdiansari, Wulan Marlia Sandi   +4 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Can proactive fuel economy strategies help automakers mitigate fuel price risk? [PDF]

Detroit automakers have opposed mandated improvements in fuel economy since legislation was first proposed in the 1970’s. Their opposition is based, among other considerations, on the assumption that their customers value fuel economy only when fuel ...
McManus, Walter
core   +1 more source

Comparison of Fixed and Adaptive Speed Control for a Flettner-Rotor-Assisted Coastal Ship Using Coupled Maneuvering-Energy Simulation

Journal of Marine Science and Engineering
Wind-assisted propulsion using Flettner rotors has gained attention as the shipping sector faces stricter decarbonization regulations. This study compares conventional Fixed Speed Control with Adaptive Speed Control for a 100 m coastal vessel.
Seohee Jang, Hyeongyo Chae, Chan Roh
doaj   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source