The Novel Design of Feed-water Control System for Thermal Power Plant Using Super-critical Start-up Motor-Boiler Feed-water Pump

2020 ◽  
Author(s):  
Anh T. Hoang ◽  
Tuyen V. Nguyen ◽  
Bao T. Nguyen
Keyword(s):  
Control System ◽  
Power Plant ◽  
Thermal Power ◽  
Feed Water ◽  
The Novel ◽  
Water Pump ◽  
Water Control ◽  
Start Up ◽  
Novel Design ◽  
Boiler Feed Water

The Thermal–Hydraulic Design of Main Feed Water Pump Suction Systems for Large Thermal Power Plant

1985 ◽  
Vol 199 (4) ◽  
pp. 215-227 ◽  
Author(s):  
Lawrence Dartnell
Keyword(s):  
Power Plant ◽  
Thermal Power ◽  
Pressure Rise ◽  
Feed Water ◽  
Correct Identification ◽  
Design Practice ◽  
Water Pump ◽  
Pressure Decay ◽  
Hydraulic Design ◽  
Domestic Design

British domestic design practice is described for boiler feed pump suction systems associated with high level deaerator/feed water tanks in large modern power plant. The objective of thermal–hydraulic design is the provision of adequate pressure to boiler feed water pump suctions under all transient and steady state conditions to ensure continuity of water flow and reliable pump operation. Methods are available for the determination of pressure decay in feed tanks during load transients, but the successful application of mathematical relationships between pressure decay and pressure rise in suction pipework depends on the correct identification of operational circumstances. Progress in recent years has been on the identification of circumstances which produce governing conditions and has taken design practice beyond the stage established by early workers. Developed practice has been successfully applied by the Central Electricity Generating Board and its main plant contractors to forty-nine 500 MW units in coal- and oil-fired stations and to twenty-three 660 MW units in coal, oil and advanced gas-cooled reactor stations, which at 39 680 MW, constitutes the major proportion of plant in England and Wales. Aspects of plant behaviour and operation crucial to successful system design are featured. Recommendations are made for plant layout, pipework routing, tank outlet and pipework sizing, net positive suction head (NPSH) determination etc.

Retrofitting a Steam Power Cycle by Using Water From the Interstage Feed Water Pump as Reheat Spray

2008 ◽  
Author(s):  
M. H. Saidi ◽  
A. Irani R. ◽  
S. M. S. Mousavi
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Feed Water ◽  
Water Pump ◽  
Steam Temperature ◽  
Power Cycle ◽  
Pump Head ◽  
Reheat Steam ◽  
Gas Recirculation

Various methods are used in thermal power plants to adjust the superheated or reheated steam temperature to a pre-determined set point, including flue gas recirculation, using tilting burners and spray of water from discharge of feed water pump, etc. In this paper, an innovative method is presented to control the reheater temperature by tapping water from an interstage of the feed water pump to control reheater temperature at the Bisotoun Power Plant (a steam cycle based power plant in the western Iran). The spray water for the superheaters is secured from the discharge of feed water pump, but interstage water, instead of gas recirculation or using tilting burner, is used to control the reheater temperature. The total cycle is simulated with this arrangement and the results are compared with power plant actual data. Here, the variation of pump head and its power consumption is investigated as well. The tapped water requirement is calculated in terms of controlling reheat steam temperature at different loads.

Removal of Iron Scale from Boiler Feed-Water in Thermal Power Plant by Magnetic Separation: Large-Scale Experiment

2019 ◽  
Vol 29 (5) ◽  
pp. 1-5
Author(s):  
Junya Yamamoto ◽  
Tatsuya Mori ◽  
Yoko Akiyama ◽  
Hidehiko Okada ◽  
Noriyuki Hirota ◽  
...  
Keyword(s):  
Power Plant ◽  
Magnetic Separation ◽  
Thermal Power Plant ◽  
Large Scale ◽  
Thermal Power ◽  
Feed Water ◽  
Scale Experiment ◽  
Iron Scale ◽  
Boiler Feed Water

A Comparison Analysis of Boiler Feed-Water Pump Set for the 1000MW Power Plant with Energy Saving in Energy Engineering

2013 ◽  
Vol 648 ◽  
pp. 241-246
Author(s):  
Jian Shen ◽  
Zhao Hua Huang ◽  
Jian Mei Wang ◽  
Chun Lin Zhang ◽  
Cheng Ma
Keyword(s):  
Power Plant ◽  
Energy Saving ◽  
Optimal Configuration ◽  
Feed Water ◽  
Water Pump ◽  
Comparison Analysis ◽  
Type Selection ◽  
Economic Comparison ◽  
Energy Engineering ◽  
Boiler Feed Water

This article compares the domestic configurations of the boiler feed-water pump for 1000MW units, and takes the technical and economic comparison of the feed-water pump type selection. Analyzed diverse configurations of the boiler feed-water pump set. For example, to 1000MW units boiler feed-water pump set in a factory, obtained relatively optimal configuration of feed-water pump in connection with various technical and economic index.

scholarly journals Case study on the effectiveness of condition monitoring techniques for fault diagnosis of pumps in thermal power plant

2019 ◽  
Vol 23 (1) ◽  
pp. 70-75 ◽  
Author(s):  
Caneon Kurien ◽  
Ajay Kumar Srivastava
Keyword(s):  
Power Plant ◽  
Condition Monitoring ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Cooling Water ◽  
Failure Detection ◽  
Feed Water ◽  
Water Pump ◽  
Monitoring Techniques

Abstract A case study was carried out to investigate the effectiveness of condition monitoring techniques in the early failure detection of pumps in a thermal power plant. Various condition monitoring techniques used in this case study involved vibration analysis, motor current signature analysis, noise monitoring and wear debris analysis. These techniques were applied on the three pumps, namely boiler feed water pump, auxiliary cooling water pump and condensate extraction pump, which have to work continuously for the operation of the thermal power plant. Vibration analysis of the auxiliary cooling water pump showed that there is a rising trend in the acceleration values at its driving and non-driving end indicating the deterioration of bearings. Motor current index range of all the pumps was found to be within acceptable limits. Wear debris analysis of lubricant in the hydraulic coupling of boiler feed water pump indicated the presence of sand, dirt and low alloy steel sliding wear particles in it. Condition monitoring techniques have been proved to be an effective technique in early failure detection of pumps.

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