Results 51 to 60 of about 25,120 (234)

Cooling of rocket plume using aqueous jets during launching

Engineering Applications of Computational Fluid Mechanics, 2022
With an increase in rocket motor thrust, the thermal loads on the launch platform by the impingement exhaust jet are significantly increased, this poses serious safety risks to rocket launch.
Zhitan Zhou, Yiying Bao, Peijie Sun, Yiqing Li   +3 more
doaj   +1 more source

Research on Optimization of Flow Field and Combustion Performance in Boilers With Combined Near‐Wall Air Supply Systems

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In the pulverized coal boiler industry, reducing NOx emissions has become a critical objective. Although low‐NOx combustion technologies are effective, they may lead to localized high‐temperature corrosion. To address this issue, near‐wall air supply technology has been introduced, which involves injecting an appropriate amount of air near the
Wangyongjia Zhong, Lihua Cai, Dianxu Ruan, Haifeng Fang, Xiangfei Lin   +4 more
wiley   +1 more source

Numerical and Experimental Investigation of the Influence of Backpressure on a Confined Impinging Jet for Small Nozzle-to-plate Spacing [PDF]

Journal of Applied Fluid Mechanics
In order to further extend understanding of the heat transfer characteristics under an enclosed area, the influence of backpressure on a single impingement jet with small nozzle-to-plate spacing (H/D) is studied.
K. Zhu, R. Shen, T. Sun, G. Chen, J. Ding   +4 more
doaj   +1 more source

On impinging near‐field granular jets [PDF]

International Journal for Numerical Methods in Engineering, 2009
AbstractIn this work a multibody collision model, amenable to large‐scale computation, is developed to simulate a jet of near‐field grains impinging on a surface. This model is developed by computing momentum exchange for grain–grain and grain–surface interactions.
Arbelaez, D, Zohdi, T I, Dornfeld, David
openaire   +4 more sources

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Numerical Prediction of Convective Heat Flux on the Flight Deck of Naval Vessel Subjected to a High-Speed Jet Flame from VTOL Aircraft

Journal of Marine Science and Engineering, 2022
This study examines the heat flux and convective heat transfer generated when a vertical take-off and landing (VTOL) aircraft takes off and lands on the flight deck of a naval vessel.
Ho-Sang Jang, Se-Yun Hwang, Jang-Hyun Lee   +2 more
doaj   +1 more source

Multiple impinging jet air-assisted atomization [PDF]

Experimental Thermal and Fluid Science, 2017
The growth of the aviation sector triggered the search for alternative fuels and continued improvements in thecombustion process. This work addresses the technological challenges associated with spray systems and theconcern of mixing biofuels with fossil fuels to produce alternative and more ecological fuels for aviation.
Pizziol, Bruno, Costa, Mário, Panão, Miguel, Silva, A. R. R.   +3 more
openaire   +7 more sources

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

Energy Science &Engineering, EarlyView.
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

Plasma Activate Nitrogen for Efficient Ammonia Synthesis

Exploration, EarlyView.
This review systematically summarizes the classification and reaction mechanism of plasma, and discusses the synergy between different plasmas and catalytic methods along with energy consumptions in detail, in order to gain a deeper understanding of currently ammonia synthesis strategies.
Yamei Zhang, Jianfei Yu, Haixia Wu, Zhijun Zhao, Hongjin Xia, Qingyang Li, Yiran Wang, Dongyang Li, Qian Wang   +8 more
wiley   +1 more source

Mist Flow Visualization for Round Jets in Aerosol Jet Printing

, 2018
With the microdroplets of water serving as light scattering particles, the mist flow patterns of round micro-jets can be visualized using the Aerosol Jet(R) direct-write system. The visualization images show that the laminar mist jet appears to extend to
Feng, James Q.
core   +1 more source