The research study scenarios water hammer problem that may cause the destruction
of the irrigation pipes, pumping stations and equipmen and part of the irrigation project in
terms Ain Beida and its environs in the north-eastern city of Latakia, whe
re the project
seeks to quench 5,000 hectares of land with water pumped from Lake Dam November 16
occurrence . It consists of four pumping stations in addition to major irrigation systems and
irrigation systems subsidiary. Used in these stations pipes made of steel (Steel) , The
reservoir project's main reservoir is two.
Bently and Water CAD V8 XM Edition we have in this research with the help of the
CD-networking program
Modeling of these stations to save time and effort in the study, are HAMMER V8
XM Edition
Determine Adhamiya pressures and velocities in the case of runoff stable, identifying
pressures Adhamiya in the case of the flow is stable through the development scenario of a
water hammer caused by the sudden closure of the valve irreversibility thus leading larger
than the carrying capacity of pipes and fittings have a high pressure values, and put another
scenario shows the effect of non-use non-return valve in the water hammer occurs, and its
role as a good protection of them Thus leading to high pressures and dangerous far greater
than the carrying capacity of the pipe fittings values, and also used the compressed air
reservoir in the third scenario means other protection from water hammer, and we found
through Adhamiya pressures resulting values that the compressed air tank means better
protection; it has to prevent any increase in pressure values Adhamiya when water hammer
occurs, and kept her on the values that were in the case of steady flow.
The objective of the study was to determine experimentally
the dust pollution of polyethylene pipe during head- to - head
welding in the workshops piping and its impact on the efficiency of
welding.
It is a cross in the hydraulic systems with long pipes case modeling of the hardest and most important cases in search. Of the most important and is considered Query to achieve study the changing resistance model is used to describe the changing liqu
id flow in the tube. As described by knowing the nature of the shear stress to the pipe wall and also know the nature of the flow ( laminar or turbulent ). The results of simulations of hydraulice shock caused by the sadden move of the hydraulic control valve which studied in the following cases:
1- Hard to improve the discharge of the pump rate.
2- Improve the discharge of the pump variable rate finally; compare the results of computer simulations with experimental results.
