Results 71 to 80 of about 2,004,002 (204)

ECOLOGICAL AND ENERGY OPTIMIZATION OF A COAL-FIRED BOILER OPERATION BASED ON FLUE GAS RECIRCULATION

open access: yesШәкәрім университетінің хабаршысы: Техника ғылымдар
Flue gas recirculation (FGR) is an effective approach for simultaneously reducing nitrogen oxide emissions and improving the energy performance of coal-fired boilers by controlling flame temperature and the composition of the working mixture.
A. R. Khazhidinova   +4 more
doaj   +1 more source

Исследование влияния рециркуляции дымовых газов на выход бенз(а)пирена в процессе сжигания угля

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
The article shows the calculated data on the content of benz(a)pyrene in the emissions of coal-fired boilers, implementing the schematic of coal combustion with flue gas recirculation.

doaj   +1 more source

Unburned Carbon in Coal Fly Ash: Exploring Its Potential for Electrochemical Energy Storage in Supercapacitors

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 4, April 2026.
The graphical abstract illustrates a circular waste to value pathway in which coal fly ash is upgraded by isolating unburned carbon and converting it into functional carbon materials. Through carbonization and activation, UC‐derived carbon is transformed into high surface area electrodes for supercapacitors, supporting sustainable energy storage and ...
Thapelo Manyepedza, Moses T. Kabomo
wiley   +1 more source

Power Losses in Energy Generation: Mechanisms, Mitigation Strategies, and Pathways to a Sustainable Future

open access: yesEnergy Technology, Volume 14, Issue 4, April 2026.
This article provides a comprehensive review of loss mechanisms in the generation stage of energy systems, covering fossil, nuclear, and renewable technologies. It examines their environmental and operational implications and shows how overlooking generation losses distorts efficiency assessments.
Pooya Parvizi   +4 more
wiley   +1 more source

EPIPI: an Integrated Indicator for Environmental Performance Assessment in the Pulp and Paper Industry

open access: yesEnvironmental Quality Management, Volume 35, Issue 3, Spring 2026.
ABSTRACT This study proposes and applies the Environmental Paper Industry Performance Indicator (EPIPI), a sector‐specific composite indicator for assessing the environmental performance of pulp and paper production based on process‐related wastes.
Marcelo Girotto Rebelato   +2 more
wiley   +1 more source

Numerical investigation of combustion and recirculation characteristics in a full-time inner combustion burner

open access: yesCase Studies in Thermal Engineering
Coal-fired boilers with deep peaking capability facilitates the integration of variable renewable energy sources, thereby enhancing the overall energy utilization efficiency.
Hong Tang   +6 more
doaj   +1 more source

An Evaluation of Effects of Fuel Parameters and Flue Gas Recirculation on NOX Emissions Through Detailed Chemical Kinetics Simulations

open access: yesChemical Engineering Transactions, 2019
In this work the effects of fuel parameters and under grate flue gas recirculation (FGR) are investigated when applying staged air combustion of solid fuel for the purpose of NOx reduction.
Oyvind Skreiberg   +4 more
doaj   +1 more source

Thermal calculation of mill system with recirculation of flue gas and without recirculation

open access: yes, 2015
This master’s thesis deals with the issue of recirculating of flue-gas of pulverized coal-fired boiler. Part of the thesis are thermal calculations of mills for operational status with and without flue-gas recirculation and design of routes of ...
Pawlitko, David
core  

Experimental Study on Wide-Load Low-NOx Combustion Retrofit for Circulating Fluidized Bed Boiler Burning High-Alkali Coal

open access: yes发电技术
ObjectivesDuring the operation of a 440 t/h circulating fluidized bed (CFB) boiler burning high-alkali coal in Xinjiang, China, it is found that its NOx emissions do not meet the standard.
WANG Hongjian   +3 more
doaj   +1 more source

Effect of Oxygen Content on Combustion Stability in a Staged Swirl Combustor Under Various Operating Conditions

open access: yesFire
Flue gas recirculation (FGR) is an effective technique for reducing thermal nitrogen oxide (NOx) emissions of gas turbines. However, variations in inlet oxygen concentration significantly alter the internal combustion characteristics of staged swirl ...
Zhenzhen Feng   +5 more
doaj   +1 more source

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