Results 61 to 70 of about 7,894 (258)

Closing the Loop in Agrivoltaics: A Radiative Cooling Coating for Synergistic Self‐Cleaning and Water Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A nanostructured photonic‐thermal coating enables radiative‐cooling‐induced condensation and water harvesting, establishing a self‐sustaining agrivoltaics microclimate loop that transforms PV panels into active climate regulators. The integration of photovoltaic (PV) panels into agricultural landscapes (i.e., agrivoltaics) offers a promising path for ...
Saichao Dang, Abdul Rahim Siddiqui, Murali Gedda, Yuxuan Huang, Shakeel Ahmad, Jehad K. El‐Demellawi, Dan Daniel, Osman M. Bakr, Stefaan De Wolf, Hussam Qasem, Husam N. Alshareef, Qiaoqiang Gan   +11 more
wiley   +1 more source

Study of air entrainment and aeration devices [PDF]

Journal of Hydraulic Research, 1989
Cavitation erosion damage to spillway surfaces may be prevented with the use of aeration devices (aerators) introducing air in the layers close to the channel bottom in order to reduce cavitation damage. The performance of a spillway aerator are studied on steep spillway model with high velocities (from 4 m/s up to 15 m/s) and new air concentration and
openaire   +4 more sources

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

Performance Analysis of Airfoil-like Spoiler Element Air Ejector Based on Topology Optimization [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
Aiming at the problem of low entrainment ratio of the traditional air ejector, the topology optimization method was used to optimize its structure. And an air ejector with airfoil-like spoiler element was proposed based on the topology optimization ...
LIU Huadong, ZHANG Ya, HAO Qi, SUN Hao
doaj   +1 more source

A Numerical Investigation of the Effects of Piston Bowl Geometry and Spray Angle on Combustion, Performance and Emission of a Diesel Engine

Energy Science &Engineering, EarlyView.
A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque, Abdullah Al Rifat, Tafsirul Hassan, Md. Ifthaker Alam, Mohammad Mehedi Hasan Kazol, Md. Ashraful Islam, Abidur Rahman Adib, Mizanur Rahman   +7 more
wiley   +1 more source

Numerical study on periodic pressure fluctuations driven by air–water interactions in a dropshaft-tunnel system

Engineering Applications of Computational Fluid Mechanics
Air–water interactions in deep tunnel systems can cause safety risks. However, the multiphase flow dynamics under continuous air entrainment from upstream and release from downstream, which are the typical case in engineering practice, remain ...
Zheng Zhaolin, David Z. Zhu, Tuqiao Zhang, Feilong Dong, Yiyi Ma   +4 more
doaj   +1 more source

CFD informed design of bench-scale experiments to characterize air entrainment into fuel beds induced by columnar vortices. [PDF]

Fire Saf J, 2023
Di Cristina G, Bryant RA.
europepmc   +1 more source

Hydrogen‐Enriched Tri‐Fuel Combustion for Low‐Carbon Engines at Medium Engine Load: A Comprehensive CFD Analysis

Energy Science &Engineering, EarlyView.
CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam, Tafsirul Hassan, Md Imtiaz Hossen, Md. Shaib Hossain, Bandhon Saha Bijoy   +4 more
wiley   +1 more source

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

Fire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier, Jan Smolka, Kamila Kempna, Meet Panchal, Tony Graham, Eleni Asimakopoulou   +5 more
wiley   +1 more source

Analytical and Numerical Study on the Performance of ‎Supersonic Ejector at Different Operating Conditions ‎and Working Fluids

Journal of Applied Fluid Mechanics, 2021
The computation of ejector geometry for a given fluid is essential and plays a crucial role in creating an ejector profile and performance analysis.
S. K. Yadav, K. M. Pandey, R. Gupta
doaj