Results 1 to 10 of about 525,207 (268)

Mercury Speciation in Various Coals Based on Sequential Chemical Extraction and Thermal Analysis Methods

open access: yesEnergies, 2021
Coal combustion is an anthropogenic source of mercury (Hg) emissions to the atmosphere. The strong toxicity and bioaccumulation potential have prompted attention to the control of mercury emissions.
Yinjiao Su   +3 more
doaj   +1 more source

Economic Assessment of Operation Strategies on Park-Level Integrated Energy System Coupled with Biogas: A Case Study in a Sewage Treatment Plant

open access: yesEnergies, 2022
Operation strategies for a park-level integrated energy system (PIES) in terms of carbon prices and feed-in tariffs, have not been adequately studied. This paper addresses this knowledge gap by proposing operation strategies based on the PIES driven by ...
Xin Zhao, Yanqi Chen, Gang Xu, Heng Chen
doaj   +1 more source

A Preliminary Study on Dependence of Mercury Distribution on the Degree of Coalification in Ningwu Coalfield, Shanxi, China

open access: yesEnergies, 2021
Mercury (Hg) is a toxic trace element emitted from coal conversion and utilization. Samples with different coal ranks and gangue from Ningwu Coalfield are selected and investigated in this study.
Yinjiao Su   +3 more
doaj   +1 more source

Thermodynamic Evaluation and Sensitivity Analysis of a Novel Compressed Air Energy Storage System Incorporated with a Coal-Fired Power Plant

open access: yesEntropy, 2020
A novel compressed air energy storage (CAES) system has been developed, which is innovatively integrated with a coal-fired power plant based on its feedwater heating system.
Peiyuan Pan   +5 more
doaj   +1 more source

Performance Analysis of a Waste-to-Energy System Integrated with the Steam–Water Cycle and Urea Hydrolysis Process of a Coal-Fired Power Unit

open access: yesApplied Sciences, 2022
An innovative hybrid energy system consisting of a waste-to-energy unit and a coal-fired power unit is designed to enhance the energy recovery of waste and decrease the investment costs of waste-to-energy unit.
Yuanyuan Zhang   +6 more
doaj   +1 more source

Migration Behaviors of As, Se and Pb in Ultra-Low-Emission Coal-Fired Units and Effect of Co-Firing Sewage Sludge in CFB Boilers

open access: yesEnergies, 2022
The migration behaviors of As, Se and Pb in ultra-low-emission coal-fired units were investigated and the effect of co-firing of sewage sludge and coal was explored in circulating fluidized-bed (CFB) boiler units.
Xuan Liu, Yang Teng, Kai Zhang
doaj   +1 more source

On the generating power of regularly controlled bidirectional grammars [PDF]

open access: yesInternational Journal of Computer Mathematics, 1991
RCB-grammars or regularly controlled bidirectional grammars are context-free grammars of which the rules can be used in a productive and in a reductive fashion. In addition, the application of these rules is controlled by a regular language. Several modes of derivation can be distinguished for this kind of grammar. In this paper the generating power of
Asveld, Peter R.J., Hogendorp, Jan Anne
openaire   +1 more source

Steady-state model of multi-port electric energy router and power flow analysis method of AC/DC hybrid system considering control strategies

open access: yesThe Journal of Engineering, 2019
This study proposes a steady-state model of multi-port electric energy router (EER) and a power flow analysis method for AC/DC hybrid system considering control strategies. Firstly, a circuit topology model of EER is put forward, including AC and DC port
Yu Shen   +6 more
doaj   +1 more source

Performance Analysis of a Coal-Fired External Combustion Compressed Air Energy Storage System

open access: yesEntropy, 2014
Compressed air energy storage (CAES) is one of the large-scale energy storage technologies utilized to provide effective power peak load shaving. In this paper, a coal-fired external combustion CAES, which only uses coal as fuel, is proposed.
Wenyi Liu   +5 more
doaj   +1 more source

A Chaos Disturbed Beetle Antennae Search Algorithm for a Multiobjective Distribution Network Reconfiguration Considering the Variation of Load and DG

open access: yesIEEE Access, 2020
As the distributed generation (DG) in a power supply and the user load demand constantly change in an actual distribution network, multiobjective optimal network reconfiguration considering variations in load and DG has become a major concern, which is ...
Jie Wang   +4 more
doaj   +1 more source

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