SID.ir New Version

Use Online Translation Powered By

Click Here STRS

STRS

Paper Information
Journal:   SHARIF: CIVIL ENINEERING   FALL 2017 , Volume 33-2 , Number 3.2 ; Page(s) 43 To 52.
 
Paper: 

Investigation Of Optimum Dimensions Of Simple And Differential Surge Tanks To Control The Pressure Waves Due To Water Hammer
 
 
Author(s):  Kardan N.*, Hassanzadeh Y., Kheiry H.
 
* DEPT. OF CIVIL ENGINEERING, AZARBAIJAN SHAHID MADANI UNIVERSITY
 
Abstract: 
Water hammer is one of the destructive hydrodynamic phenomena which established in most pumping stations, transmission lines and hydroelectric power plants. Fluid distribution systems and hydropower plants can be severely damaged by water hammer. Water hammer is the forceful slam, bang, or shudder that occurs in pipes when a sudden change in fluid velocity creates a significant change in fluid pressure. Since this phenomenon can force destructive effects on transmission lines and hydroelectric power plants (Turbines and pipelines), so it is essential to investigate the influence of water hammer (positive and negative pressure waves) along the transmission lines. One of the methods to reduce the effect of water hammer effects is to establish a surge tank in hydraulic pipelines. Surge problems are encountered in connection with unsteady state of flow of fluids in pipelines. In general a surge tank is designed to reduce the distance between the free water surface and turbine thereby reducing the water hammer effects on penstock and also protect upstream tunnel from high pressure rises. The other function is to serve as a supply tank to the turbine when the water in pipe is accelerating during increased load conditions and as a storage tank when the water is decelerating during reduced load conditions. In the present study, while describing the performance of different surge tanks and their role in adjustment the negative and positive pressures in transmission lines of hydroelectric power, two types of surge tanks (i.e., simple and differential) are selected and investigated their action on variations of flow pressure and velocity along the pipe lines. Also, regarding to the economic considerations, the dimensions of surge tanks have been optimized. Finding the optima position of tanks according the oscillations of water surface is another evaluated of items in present study. For analyzing the equations by finite difference technique, discretization of equations has been conducted in Matlab. The results revealed that the differential surge tanks are more efficient and economical than simple ones up to 40%. Also the half of transmission length at upstream of turbines are determined as the optima position of surge tanks.
 
Keyword(s): WATER HAMMER, SURGE TANKS, MASS OSCILLATIONS, OPTIMA DIMENSIONS, FINITE DIFFERENCE TECHNIQUE
 
 
International related papers: 
 
Most related Highly related Moderately related Least related
 
References: 
  • Not Registered.
  •  
  •  
 
Citations: 
  • Not Registered.
 
+ Click to Cite.
APA: Copy

KARDAN, N., & HASSANZADEH, Y., & KHEIRY, H. (2017). INVESTIGATION OF OPTIMUM DIMENSIONS OF SIMPLE AND DIFFERENTIAL SURGE TANKS TO CONTROL THE PRESSURE WAVES DUE TO WATER HAMMER. SHARIF: CIVIL ENINEERING, 33-2(3.2 ), 43-52. https://www.sid.ir/en/journal/ViewPaper.aspx?id=573480



Vancouver: Copy

KARDAN N., HASSANZADEH Y., KHEIRY H.. INVESTIGATION OF OPTIMUM DIMENSIONS OF SIMPLE AND DIFFERENTIAL SURGE TANKS TO CONTROL THE PRESSURE WAVES DUE TO WATER HAMMER. SHARIF: CIVIL ENINEERING. 2017 [cited 2022August20];33-2(3.2 ):43-52. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=573480



IEEE: Copy

KARDAN, N., HASSANZADEH, Y., KHEIRY, H., 2017. INVESTIGATION OF OPTIMUM DIMENSIONS OF SIMPLE AND DIFFERENTIAL SURGE TANKS TO CONTROL THE PRESSURE WAVES DUE TO WATER HAMMER. SHARIF: CIVIL ENINEERING, [online] 33-2(3.2 ), pp.43-52. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=573480.
 
 
Persian Abstract Yearly Visit 61
 
 
Latest on Blog
Enter SID Blog