Results 21 to 30 of about 1,718,290 (313)

Air cavities at the inner cylinder of turbulent Taylor-Couette flow [PDF]

open access: yes, 2018
Air cavities, i.e. air layers developed behind cavitators, are seen as a promising drag reducing method in the maritime industry. Here we utilize the Taylor-Couette (TC) geometry, i.e. the flow between two concentric, independently rotating cylinders, to
Bakhuis, Dennis   +5 more
core   +2 more sources

Critical contribution of moisture to the air quality deterioration in a warm and humid weather

open access: yesScientific Reports, 2023
The deterioration of air quality that threatens human health is recognized as focal compound hazard. Here, decisive thermodynamic conditions for activation of secondary aerosol formation have been investigated focused on Korea.
Woosuk Choi, Chang-Hoi Ho, Ka-Young Kim
doaj   +1 more source

Investigation of Premature Distress Around Joints in PCC Pavements: Parts I & II [PDF]

open access: yes, 2012
Some of the Indiana concrete pavements constructed within the last 10-20 years have shown signs of premature deterioration, especially in the areas adjacent to the longitudinal and transverse joints.
Arribas-Colón, Maria del Mar   +3 more
core   +2 more sources

Selection of oxygen reduction catalysts for secondary tri-electrode zinc–air batteries

open access: yesScientific Reports, 2022
Oxygen reduction reaction (ORR) electrocatalysts, which are highly efficient, low-cost, yet durable, are important for secondary Zn–air cell applications.
Adeline Loh   +5 more
doaj   +1 more source

Retrofit of a 600 MW Down-Fired Pulverized-Coal Furnace for Low NOx Emission

open access: yesEnergies, 2023
Aiming at solving the problem of high NOx emissions of a down-fired boiler, a new combustion system has been proposed by means of the numerical simulation using Ansys Fluent.
Tao Liu, Sheng Wang, Ziming Wei, Jie Yu
doaj   +1 more source

High Efficiency Operational Reserve by SOFC for the Effective Grid Integration of Variable Renewable Energies [PDF]

open access: yesE3S Web of Conferences, 2019
For an effective grid integration of a large share of intermittent renewable energy sources such as a photovoltaic and a wind power, the flexible operation of the centralized or decentralized thermal power plants are required as a control reserve of ...
Yoshiba Fumihiko   +5 more
doaj   +1 more source

Prediction and optimization of gas turbine secondary air system cooling efficiency based on deep learning

open access: yesEngineering Applications of Computational Fluid Mechanics
Secondary-air systems (SASs) are critical for maintaining material integrity and optimizing thermal performance in gas turbines (GTs) and related energy equipment.
Yulong Yao   +3 more
doaj   +1 more source

Performance Analysis of an Updraft Tower System for Dry Cooling in Large-Scale Power Plants

open access: yesEnergies, 2017
An updraft tower cooling system is assessed for elimination of water use associated with power plant heat rejection. Heat rejected from the power plant condenser is used to warm the air at the base of an updraft tower; buoyancy-driven air flows through a
Haotian Liu   +2 more
doaj   +1 more source

Improvement of Solid-Gas Interaction in Fluidized Bed Systems via Secondary Air- Injection

open access: yesMATEC Web of Conferences, 2017
Since the invention of fluidized bed systems to augment chemical reactions, numerous innovations were introduced to the system. These innovations result-in substantial improvement to the overall efficiency apart from resulting the fluidized bed system to
Mohideen Batcha Mohd Faizal   +2 more
doaj   +1 more source

Flow Characteristics and Mass Flow Distribution Mechanism Within Multi-Inlet and Multi-Outlet Corotating Disc Cavities

open access: yesEnergies
This study reveals the governing mechanism of mass flow distribution within a multi-inlet, multi-outlet corotating disc cavity, providing critical insights for designing advanced gas turbine secondary air systems.
Clarence Jia Cheng Chai   +2 more
doaj   +1 more source

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