Results 51 to 60 of about 642 (201)

A comprehensive review of hydrogen integration in advanced engine modes

Next Energy
The pursuit of sustainable energy solutions on a global scale has heightened the exploration of alternative fuels, aimed at reducing greenhouse gas emissions and lessening dependence on fossil fuels.
S.M. Shafee, M. Feroskhan
doaj   +1 more source

DNS Investigation on Autoignition and Flame Propagation in HCCI Combustion

Journal of Fluid Science and Technology, 2011
2-dimensional direct numerical simulation (DNS) of autoignition and flame propagation of turbulent premixed mixture has been conducted to investigate the turbulent combustion mechanism in homogeneous charge compression ignition (HCCI) engines.
Hiroaki FUKUMOTO, Takehiko SEO, Masayasu SHIMURA, Naoya FUKUSHIMA, Mamoru TANAHASHI, Toshio MIYAUCHI   +5 more
doaj   +1 more source

A Mechanism of Thermal Ignition Appearance in Homogeneous Charge Compression Ignition Process

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2006
The transition process from cool flame to thermal flame in homogeneous charge compression ignition is discussed in this paper. It was confirmed in HCCI engine experiments using dimehtyl ether, n-heptane and n-decane as fuels that the heat release rate during transition process from the cool ignition to the thermal ignition exhibits linear shape in an ...
YAMADA, Hiroyuki, TEZAKI, Atsumu, GOTO, Yuichi   +2 more
openaire   +2 more sources

Evidence of Free‐Bound Transitions in Warm Dense Matter and Their Impact on Equation‐of‐State Measurements

Contributions to Plasma Physics, EarlyView.
ABSTRACT Warm dense matter (WDM) is now routinely created and probed in laboratories around the world, providing unprecedented insights into conditions achieved in stellar atmospheres, planetary interiors, and inertial confinement fusion experiments.
M. P. Böhme, L. B. Fletcher, A. D. Baczewski, H. M. Bellenbaum, Z. A. Moldabekov, J. Vorberger, D. A. Chapman, M. J. MacDonald, S. Schwalbe, T. R. Preston, D. Kraus, T. Gawne, F. R. Graziani, S. Hamel, T. Döppner, T. Dornheim   +15 more
wiley   +1 more source

One‐Step Synthesis of Si–Graphene Heterostructures via in‐Flight Gas‐Phase Mixing for High‐Capacity Silicon‐Rich Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A one‐step gas‐phase synthesis directly assembles amorphous Si nanoparticles with few‐layer graphene heterostructures via in‐flight mixing. Compositions with only 15 wt.% FLG deliver ~2800 mAh g−1 (Si + FLG) at 0.05 C and retain ~1400 mAh g−1 after 100 cycles at a high cycling rate of 1 C, enabled by a percolated, strain‐buffering graphene network that
Muhammad Ali, Mukarram Ali, Yasaman Jarrahizadeh, Axel Lorke, Michael A. Pope, Hartmut Wiggers   +5 more
wiley   +1 more source

HCCI combustion control using advanced gasoline direct injection techniques

MATEC Web of Conferences, 2018
Homogeneous Charge Compression Ignition (HCCI) is a promising low temperature combustion technology for reciprocating engines that offers high fuel efficiency and extremely low exhaust emissions.
Hunicz Jacek, Mikulski Maciej, Komsta Henryk   +2 more
doaj   +1 more source

Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper reviews research progress on the air stability of SSEs, covering their instability mechanisms and modification strategies, while outlining core challenges and future directions for practical applications. Sulfide solid electrolytes are pivotal for enabling high‐performance all‐solid‐state batteries due to their high ionic conductivity and ...
Hongbing Ding, Yue Hu, Xin Li, Yang Su, Xinlu Wang, Hongbo Zhang, Guixia Liu, Wensheng Yu, Xiangting Dong, Jinxian Wang, Xin Wang   +10 more
wiley   +1 more source

Numerical modeling on homogeneous charge compression ignition combustion engine fueled by diesel-ethanol blends

MATEC Web of Conferences, 2016
This paper investigates the performance and emission characteristics of HCCI engines fueled with oxygenated fuels (ethanol blend). A modeling study was conducted to investigate the impact of ethanol addition on the performance, combustion and emission ...
Hanafi H., Hasan M.M, Rahman M.M, Noor M.M, Kadirgama K., Ramasamy D.   +5 more
doaj   +1 more source

Influence of Mixture Quality on Homogeneous Charge Compression Ignition [PDF]

SAE Technical Paper Series, 1998
<div class="htmlview paragraph">The major advantages with Homogeneous Charge Compression Ignition, HCCI, is high efficiency in combination with low NOx-emissions. The major drawback with HCCI is the problem to control the ignition timing over a wide load and speed range.
Christensen, Magnus, Johansson, Bengt
openaire   +2 more sources

Anion‐Synergistic Regulation of Solvation‐Layer Chemistry in Nonflammable Electrolytes Enables Highly Safe and Durable Sodium Metal Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study establishes a new anion‐synergistic solvation chemistry framework for directing interfacial reactions and stabilizing sodium metal anodes. Uncontrolled dendrite growth, accompanied by thermal runaway in sodium metal, remains a critical bottleneck for practical applications of sodium metal batteries (SMBs).
Xiaotong Gao, Peng Liu, Yewei Li, Yunjia Liu, Jiyuan You, Yuqian Li, Wenju Wang   +6 more
wiley   +1 more source