Results 41 to 50 of about 688 (187)

Fuel Consumption and Emissions Reductions of Hybrid Electric Regional‐Haul Trucks Equipped with a High‐Pressure Direct Injection Natural Gas Engine in Real‐World Driving Conditions

Energy Technology, Volume 14, Issue 4, April 2026.
Integrating powertrain electrification with efficient engines using low‐carbon fuels like natural gas (NG) improves energy conversion efficiency and mitigates greenhouse gas (GHG) emissions in heavy‐duty (HD) trucks. High‐pressure direct injection (HPDI) NG engines, using less than 5% diesel (energy basis) as pilot fuel, offer diesel‐like efficiency ...
Sina Moghadasi, Navid Balazadeh‐Meresht, Gordon McTaggart‐Cowan, Mahdi Shahbakhti   +3 more
wiley   +1 more source

Modeling and Experimental Study of a Dual‐Receiver Parabolic Solar Concentrator for Direct Electricity Generation and Thermal Storage for Isolated Sites

Energy Science &Engineering, Volume 14, Issue 4, Page 2206-2224, April 2026.
Approximately 64% of the population in sub‐Saharan Africa lacks access to electricity, despite the region's high solar potential, making concentrated solar power a promising solution for decentralized and sustainable energy supply. This study presents the design, construction, and testing of a parabolic solar concentrator with two focal‐point receivers
Sani Dan Nomao Harouna, Nabil Alkassoum, Noma Talibi Soumaila, Ali Aboubacar, Hamza Abarchi Halarou, Boubou Bagre, Makinta Boukar   +6 more
wiley   +1 more source

Computational Analysis of Spray Angle Effects on Combustion and Emissions in Methane‐Diesel Dual‐Fuel Engine

Energy Science &Engineering, Volume 14, Issue 3, Page 1100-1112, March 2026.
This study concluded that wider spray angles produce wall impingement and greater unburned hydrocarbons in methane‐diesel dual‐fuel engines, whereas 110° balances efficiency and emissions. ABSTRACT A diesel methane dual fuel engine appears as a potential means for lowering emissions while retaining useful thermal efficiency.
Abdullah Al Rifat, Md. Arafat Rahman, Md. Mizanur Rahman, Tafsirul Hassan, Md Nazmul Haque   +4 more
wiley   +1 more source

Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH₃–H₂O₂/Air Mixtures

Energies, 2019
The dynamics of a homogeneous adiabatic autoignition of an ammonia/air mixture at constant volume was studied, using the algorithmic tools of Computational Singular Perturbation.
Ahmed T. Khalil, Dimitris M. Manias, Efstathios-Al. Tingas, Dimitrios C. Kyritsis, Dimitris A. Goussis   +4 more
doaj   +1 more source

Catastrophic Degradation in Solid Oxide Fuel Cells Caused by Air Supply Interruption in Real‐World Operations: Fundamental Mechanisms and Mitigation Strategies

Advanced Science, Volume 13, Issue 3, 14 January 2026.
Interrupting the air supply during the operation of solid oxide fuel cells leads to irreversible chemical degradation of the cathode materials, primarily driven by strontium at the A‐site of perovskite structures. Alternative strontium‐free materials effectively address this issue, ensuring high performance and reliable operation during operational ...
Haewon Seo, Ji‐eun Won, Wooseok Lee, Haneul Choi, Sun‐Young Park, Younghun Shin, Insung Lee, Tae Jin Lim, Kyeounghak Kim, Jongsup Hong, Hye Jung Chang, Kyung Joong Yoon   +11 more
wiley   +1 more source

Understanding and Interpreting Laser Diagnostics in Flames: A Review of Experimental Measurement Techniques

Frontiers in Mechanical Engineering, 2019
There is a wealth of existing experimental data of flames collected using laser diagnostics. The primary objective of this review is to provide context and guidance in interpreting these laser diagnostic data.
Michael J. Evans, Paul R. Medwell
doaj   +1 more source

Computational study of ECN Spray A and Spray D combustion at different ambient temperature conditions

Transportation Engineering, 2020
The combustion process of the Engine Combustion Network (ECN) Spray A and Spray D is studied over a wide range of ambient temperatures from 750 K to 900 K.
J.M. García-Oliver, R. Novella, J.M. Pastor, L. Pachano   +3 more
doaj   +1 more source

A Shock‐Tube Facility for Gas‐Phase Chemical Kinetics Studies: Design, Validation, and Application for Methane Oxidation

Chemistry–Methods, Volume 6, Issue 1, January 2026.
A high‐pressure shock‐tube facility is developed to investigate high‐temperature chemical‐kinetics for next‐generation combustion systems. The design enables extended test times and integrates multiple optical diagnostics for time‐resolved species detection.
Sulaiman A. Alturaifi, Belal Y. Belal, Ali Elkhazraji, Obaidallah Muntashari, Awad. B. S. Alquaity, Mohamed A. Alya, Khair Ghunaim, Yasser S. Omer, Mahmoud E. Hasan   +8 more
wiley   +1 more source

Study of the Effects of Biofuel-Oxygen of Various Origins on a CRDI Diesel Engine Combustion and Emissions

Energies, 2019
The paper presents the effects made by a fossil diesel–HRD (Hydrotreated Renewable Diesel) fuel blend containing Ethanol (E) or Biodiesel (B) on the combustion process, Indicated Thermal Efficiency (ITE), smoke, and pollutant emissions when running
Gvidonas Labeckas, Stasys Slavinskas, Irena Kanapkienė   +2 more
doaj   +1 more source

Performance, Emissions, and Combustion Characteristics of a Hydrogen-Fueled Spark-Ignited Engine at Different Compression Ratios: Experimental and Numerical Investigation

Energies, 2023
This paper investigates the performance of hydrogen-fueled, spark-ignited, single-cylinder Cooperative Fuel Research using experimental and numerical approaches.
Ducduy Nguyen, Tanmay Kar, James W. G. Turner   +2 more
doaj   +1 more source