The Ammonia Injection System on the Flue Gas Duct before the Electrostatic Precipitator Inlet in Zhangjiang Orimulsion Power Plant

2007 ◽  
pp. 684-688
Author(s):  
H U Kun ◽  
M A Xue-song
Keyword(s):  
Power Plant ◽  
Flue Gas ◽  
Electrostatic Precipitator ◽  
Injection System ◽  
Ammonia Injection

scholarly journals An Analytical Modeling Approach for Performance Evaluation of Electrostatic Precipitator (ESP)

2019 ◽  
Vol 1 (2-2) ◽  
Author(s):  
Shanti Faridah Salleh ◽  
Afrasyab Khan ◽  
Cirilo Nolasco Hipolito ◽  
Lennevey Kinidi ◽  
Dayang Siti Herdawati Abang Hardin
Keyword(s):  
Performance Evaluation ◽  
Power Plant ◽  
Flue Gas ◽  
Analytical Modeling ◽  
Fine Particles ◽  
Electrostatic Precipitator ◽  
Flow Rates ◽  
Overall Performance ◽  
High Concentrations ◽  
Migration Velocities

A coal-fired flue gas contains high concentrations of fine particles which can pose a threat to the environment. In this study, an electrostatic precipitator is used to remove the fine particles of the flue gas from a 100MW coal fired power plant by using a model. A model has been presented to estimate the performance of the wet electrostatic precipitator (WEP) in terms of the number of plates, flow rates and velocity. The equations have been specified for the charging and charge on the single particle of some definite diameter. The effect of the measuring points for the calculation of the effective migration velocities and hence overall performance along with the re-entrainment and gas sneakage have been incorporated. Ranges for the above-mentioned parameters are well defined and it has been observed that after a certain range values across number of plates, velocities and flow rates there is no significant improvement in the performance of the WEP has been calculated.

Causes Analysis of Wet Flue Gas Desulphurization Stack Rainout for the Thermal Powerplant without GGH and its Countermeasures

2013 ◽  
Vol 724-725 ◽  
pp. 1306-1309
Author(s):  
Peng Fei Nie ◽  
Hong Yu Zhang ◽  
Yang Wang
Keyword(s):  
Power Plant ◽  
Low Temperature ◽  
Flue Gas ◽  
Gas Flow ◽  
Electrostatic Precipitator ◽  
Thermal Power ◽  
Efficient Operation ◽  
Factors Affecting ◽  
Mist Eliminator ◽  
Flue Gas Desulphurization

This paper introduces the phenomenon of stack rainout in the wet flue gas desulphurization system for the thermal power plant units without GGH,analyzes the factors affecting rainout of wet stack and finds out the main causes resulting in stack rainout of wet flue gas desulphurization for Wangtan Power Plant without GGH,such as low temperature after the flue gas desulfurizationinsufficient diffusion capability of flue gas flowthe blockage of mist eliminatorpoor operation of electrostatic precipitatorinadequate combustion of boilerhigh speed of flue gas flow in the stackthe effect of climate. Also it is analyzed that the mist eliminator equipment and ensuring the efficient operation of electrostatic precipitator may relieve the phenomenon of stack rainout.

scholarly journals Investigation on the Corrosion of the Elbows in the Flue Gas Cooler of a 600 MW Coal-Fired Power Plant

ACS Omega ◽  
2020 ◽  
Vol 5 (50) ◽  
pp. 32551-32563
Author(s):  
Peiyuan Pan ◽  
Weijian Zhou ◽  
Heng Chen ◽  
Naiqiang Zhang
Keyword(s):  
Power Plant ◽  
Flue Gas

scholarly journals Effects of Baffles on Flow Distribution in an Electrostatic Precipitator (ESP) of a Coal Based Power Plant

2015 ◽  
Vol 105 ◽  
pp. 529-536 ◽  
Author(s):  
A.S.M. Sayem ◽  
M.M.K. Khan ◽  
M.G. Rasul ◽  
M.T.O. Amanullah ◽  
N.M.S. Hassan
Keyword(s):  
Power Plant ◽  
Electrostatic Precipitator ◽  
Flow Distribution

Numerical simulation and field test study of desulfurization wastewater evaporation treatment through flue gas

2014 ◽  
Vol 70 (7) ◽  
pp. 1285-1291 ◽  
Author(s):  
Jia-jia Deng ◽  
Liang-ming Pan ◽  
De-qi Chen ◽  
Yu-quan Dong ◽  
Cheng-mu Wang ◽  
...  
Keyword(s):  
Field Test ◽  
Flue Gas ◽  
Cfd Simulation ◽  
Electrostatic Precipitator ◽  
Negative Impact ◽  
Positive Impact ◽  
Field Tests ◽  
Gas Temperature ◽  
Simulation Results ◽  
Desulfurization Wastewater

Aimed at cost saving and pollution reduction, a novel desulfurization wastewater evaporation treatment system (DWETS) for handling wet flue gas desulfurization (WFGD) wastewater of a coal-fired power plant was studied. The system's advantages include simple process, and less investment and space. The feasibility of this system has been proven and the appropriate position and number of nozzles, the spray droplet size and flue gas temperature limitation have been obtained by computational fluid dynamics (CFD) simulation. The simulation results show that a longer duct, smaller diameter and higher flue gas temperature could help to increase the evaporation rate. The optimal DWETS design of Shangdu plant is 100 μm droplet sprayed by two nozzles located at the long duct when the flue gas temperature is 130 °C. Field tests were carried out based on the simulation results. The effects of running DWETS on the downstream devices have been studied. The results show that DWETS has a positive impact on ash removal efficiency and does not have any negative impact on the electrostatic precipitator (ESP), flue gas heat exchanger and WFGD. The pH values of the slurry of WFGD slightly increase when the DWETS is running. The simulation and field test of the DWETS show that it is a feasible future technology for desulfurization wastewater treatment.

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