Results 1 to 10 of about 124,661 (118)

A hybrid calibration scheme for developing hydrogen enrichment ratio control map using RSM and ANN technique to enhance the characteristics of an ammonia biodiesel RCCI combustion engine

Case Studies in Thermal Engineering, 2023
This investigation aims to optimally attune hydrogen enrichment ratio for an ammonia biodiesel powered RCCI engine using RSM and ANN techniques. Conventionally, optimal mapping is accomplished through trial-and-error experimentation.
Ravi K
exaly   +3 more sources

Age-related shifts of dissolved hydrogen and its impact on rumen fermentation dynamics and microbial communities in goats (Capra hircus). [PDF]

BMC Microbiol
The rumen is a complex anaerobic fermentation ecosystem in which microbial communities undergo dynamic changes during host development, influencing fermentation efficiency, hydrogen utilization, and methane (CH₄) production. However, how rumen maturation
Wang W, Tian Y, Guo W, Dong Y, Mi J, Ahmad AA, Jing X, Long R, Sun X, Deng Q, Hao L, Lv X, Sun W, Chen X.   +13 more
europepmc   +2 more sources

Influence of Hydrogen Enrichment Strategy on Performance Characteristics, Combustion and Emissions of a Rotary Engine for Unmanned Aerial Vehicles (UAVs)

Energies, 2022
In recent years, there has been great interest in Wankel-type rotary engines, which are one of the most suitable power sources for unmanned aerial vehicle (UAV) applications due to their high power-to-size and power-to-weight ratios.
Merve Kucuk, Ali Surmen, Ramazan Sener
doaj   +1 more source

Valorizing Steelworks Gases by Coupling Novel Methane and Methanol Synthesis Reactors with an Economic Hybrid Model Predictive Controller

Metals, 2022
To achieve the greenhouse gas reduction targets formulated in the European Green Deal, energy- and resource-intensive industries such as the steel industry will have to adapt or convert their production.
Alexander Hauser, Philipp Wolf-Zoellner, Stéphane Haag, Stefano Dettori, Xiaoliang Tang, Moein Mighani, Ismael Matino, Claudio Mocci, Valentina Colla, Sebastian Kolb, Michael Bampaou, Kyriakos Panopoulos, Nina Kieberger, Katharina Rechberger, Juergen Karl   +14 more
doaj   +1 more source

Effects of fuel-hydrogen levels on combustion, operability, and emission parameters of CH4/H2/O2/CO2 stratified flames in a dual-swirl gas turbine burner

Engineering Applications of Computational Fluid Mechanics, 2023
Towards the development of emission-free hydrogen gas turbines with wider operability limits, the combined effects of lean premixed combustion, dual combustion (combustion staging), hydrogen enrichment, and oxy-fuel combustion on the combustion and ...
Medhat A. Nemitallah, Sami K. Aljehani, Md Azazul Haque   +2 more
doaj   +1 more source

A comprehensive review into the effects of different parameters on the hydrogen‐added HCCI diesel engine

Energy Science & Engineering, 2023
The current study presents research investigations and developments related to the homogeneous charge compression ignition (HCCI) engine.  Research investigations and recent advances, including the role of various operating conditions on HCCI engine ...
Shyamal Das, Biplab Kumar Debnath, Sushant Negi, Biplab Das, Sadegh Safari, Bale V. Reddy, Sumita Debbarma, Mehdi A. Ehyaei   +7 more
doaj   +1 more source

Research on residual stress and hydrogen diffusion of X80 pipeline welded joint

Frontiers in Materials, 2023
Hydrogen enrichment induced by pipeline welding residual stress is a key issue affecting the safe service of hydrogen pipelines. In order to explore the influence of welding residual stress on hydrogen diffusion and the effect of heat treatment, an X80 ...
Jinghong Xue, Jinghong Xue, Andun Cheng, Chenxu Bai, Li Ji   +4 more
doaj   +1 more source

Comparison of the Effects of Hydrogen and Hydroxygen Additions and Oxygen Enrichment on the Emission Characteristics of EF7 Engine [PDF]

Journal of Renewable Energy and Environment, 2019
In this study, the effects of hydrogen and hydroxygen additions and oxygen enrichment on the emission characteristics of a gasoline engine (EF7) were investigated and compared with each other.
Reza Rahimi, Alireza Shirneshan
doaj   +1 more source

Investigation into the Effect of H₂-Enriched Conditions on the Structure and Stability of Flames in a Low-Swirl Combustor Derived from Aero-Engine Design

Aerospace, 2023
This study introduces an innovative approach involving the injection of hydrogen into a low-swirl, non-premixed flame, which operates with gaseous fuels derived from an air-blast atomizer designed for aero-engine applications.
Sara Bonuso, Pasquale Di Gloria, Guido Marseglia, Ramón A. Otón Martínez, Ghazanfar Mehdi, Zubair Ali Shah, Antonio Ficarella, Maria Grazia De Giorgi   +7 more
doaj   +1 more source

Determination of Hydrogen Fluoride in Uranium Hexafluoride by FTIR [PDF]

مجله علوم و فنون هسته‌ای, 2020
High reactivity of uranium hexafluride compound is responsible for the impurity production of hydrogen fluoride in the enrichment industry process. The presence of this interference gas will disrupt uranium enrichment process.
E. Kazeman, M. Adineh, A. Khagezadeh, H. Shah mir Barzoki, V. Chegini   +4 more
doaj   +1 more source