scholarly journals Ash Deposition in a Pulverized Coal-Fired Power Plant after High-Calcium Lignite Combustion

2004 ◽  
Vol 18 (5) ◽  
pp. 1512-1518 ◽  
Author(s):  
Jose-Luis Fernandez-Turiel ◽  
Andreas Georgakopoulos ◽  
Domingo Gimeno ◽  
Georgios Papastergios ◽  
Nestoras Kolovos
Author(s):  
Qiwen Jin ◽  
Xijiong Chen ◽  
Pei Li ◽  
Yonggang Zhou ◽  
Yingchun Wu ◽  
...  

2013 ◽  
Vol 333-335 ◽  
pp. 359-364
Author(s):  
Ke Wang

The pulverized coal concentration in blast pipe in front of firebox is one key parameter in coal boiler used in a power plant; it will affect the state of burning in firebox. This paper proposes a new digital correlation method to measure the time delay of ultrasonic for measuring the pulverized coal concentration. The principle of measurement is discussed in detail and the measuring system is designed.


2014 ◽  
Vol 20 (4) ◽  
pp. 1752-1760 ◽  
Author(s):  
Jae Kwan Kim ◽  
Hyun Dong Lee ◽  
Hyoung Suk Kim ◽  
Ho Young Park ◽  
Sung Chul Kim

2014 ◽  
Vol 63 ◽  
pp. 7437-7443 ◽  
Author(s):  
Longlong Tang ◽  
Takahisa Yokoyama ◽  
Hiromi Kubota ◽  
Akiro Shimota

2012 ◽  
Vol 59 (3) ◽  
pp. 343-360 ◽  
Author(s):  
Andrzej Witkowski ◽  
Mirosław Majkut

The aim of this paper is to analyze various CO2 compression processes for postcombustion CO2 capture applications for 900 MW pulverized coal-fired power plant. Different thermodynamically feasible CO2 compression systems will be identified and their energy consumption quantified. A detailed thermodynamic analysis examines methods used to minimize the power penalty to the producer through integrated, low-power compression concepts. The goal of the present research is to reduce this penalty through an analysis of different compression concepts, and a possibility of capturing the heat of compression and converting it to useful energy for use elsewhere in the plant.


Author(s):  
Takao Nakgaki ◽  
Katsuya Yamashita ◽  
Masahiro Kato ◽  
Kenji Essaki ◽  
Takayuki Iwahashi ◽  
...  

Lithium silicate is a solid CO2-sorbent that can be used repeatedly, and uniquely features absorption of CO2 at temperatures between 500°C and 600°C with an exothermic reaction and regeneration at temperatures above 700°C with an endothermic reaction. This paper introduces the conceptual model and feasibility study of the CO2 capture system utilizing the lithium silicate applicable to a pulverized coal-fired power plant. In this system, assuming a moving bed, the sorbent reactor is installed in a 500MW boiler and absorbs CO2 in the flue gas, and after the absorption process, recirculation of CO2 transports the heat for regeneration. To design the system, unsteady state numerical analysis was used to predict the reactor performance in a 60-minute cycle for absorption and regeneration, which includes the reaction rate based on experimental data. The analysis result indicates that about 20% of CO2 can be captured from flue gas without significant loss in the power generation efficiency.


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