Investigating the transfer of water by pumping method from the headwaters of the river using MATLAB software (Mordised study of Simre in Shahr Valley)

Dissertation for Master's Degree

Strategy: Civil Engineering-Water Engineering

Abstract:

In this research, the effect of land slope, height difference of pressure booster stations, height above sea level on the characteristics of the length of water transmission systems in order to verify the feasibility and facilitate the prediction of its use and optimal efficiency. The purpose of this research is to choose the best water transmission option by considering the said components The source of the Simreh River to the Simreh Dam in order to increase the relative water level of the dam in order to meet the needs in the coming years based on water crises and droughts, and currently the study area is in dry climatic conditions and there are some interactions along the normal course of the river due to wastage, evaporation and the branches taken, the Simreh Dam has faced a shortage of delivered water flow, and it is necessary to take measures to compensate for the water in the Simreh Dam. The usual route from the source to the dam It was 650 km and was reduced to 220 km by choosing the optimal route and all the limitations of the route length were investigated. In the selected route of 22 water flow boosting stations, the effective power of the pumps used was 12.3 kW each for the water transfer volume of 300 cubic meters per second and it was simulated and analyzed in Matlab software. The results deduced from the software showed that according to the conditions Topographically, there are some limitations on the route, which has an upward trend in half of the route due to the suitable conditions of the slope, efficiency and effective power of the pumps, and in the other part due to the increase in the slope of the ground, which is the result of the difference in height from the level of the stations, the power of water transfer shows an increasing drop, which should either use higher-powered engines or increase the number of pressure boosting stations. Height, pumping, slope, slope, water transfer

1-        Chapter 1

(research generalities)

(introduction, purpose, necessity)

Introduction:

One of the most important challenges facing managers and those involved in providing sustainable water resources is in acute and hydrological conditions such as drought crises, which can degrade the biological conditions under The inadequacy of water supply to agricultural products on one hand and the weakness of water supply systems in industries and fisheries on the other hand has become one of the challenging factors. Maintaining the legacy of these vital renewable resources and the optimal economic and fair use of water is one of the human challenges and is considered the key to sustainable development. Due to the constant supply of these renewable resources, on the other hand, its increasing demand in the world has increased more than six times in the last hundred years. Due to the triple population increase, it highlights the importance of adjusting this equation even more. The continuation of this challenging trend, especially in Moqarazi, where the volume of supply has also put the limited water resources out of use due to the entry of a major part of pollutants including industrial effluents, agricultural sewage, urban and rural sewage [1].

The study of the geographical and ecological area of ??some regions of the country indicates the existence of an inherent talent to realize the development goals in The sector of agricultural production and animal husbandry is one of the practical strategies in this field of development of these areas by using the method of transferring water from the headwaters of the Simreh River to the Simreh Dam in Dere Shahr city. The initial monitoring and evaluation of this project can lead to the improvement of the economic status of this very valuable project. Very high in an area in Kohdasht city in Lorestan province, he has evaluated the methods and the optimal path of water transfer. The usual path of water flow along the river from the source to the catchment area of ??the Simre dam is 650 km long, and when passing through different areas, the amount of water spillage or water wastage is very high. In the introduced route, the length of the water flow is reduced to 220 km and the amount of water spillage is very small due to the water movement in the considered concrete and steel pipes. As a result of this, the efficiency of water consumption has increased, and on the other hand, due to the high flow rate of the water intake location, the amount of reduction in water flow will be somewhat low.

This method of transfer can be very beneficial and economical, especially in drought years or when the water flow in the river is reduced. The catchment area of ??agricultural lands in the Shahr Valley region is one of the most susceptible agricultural lands, and with the water transfer plan, their productivity will increase greatly. Anyway, according to the importance of water transfer in the studied area, the aim of this research is to study how to transfer water by pumping method from the headwaters of the river using MATLAB software. The strata of developing countries such as China and India, which have formed the locomotive of the movement of consumerism in recent decades, have caused pressure on the supply and demand of renewable water resources. Competitiveness in important consumption sectors such as agriculture with the consumption of more than 90% of renewable water in addition to urban drinking, industrial, fishing and environmental needs along with the needs of the recreational sector, the management and optimal use of these limited and vital facilities are more than ever a priority in the macro planning of developing countries. has developed and advanced. If regular management measures are not considered in line with the growing trend of water consumption, it will provide the conditions for more acute crises to occur. In terms of the importance of these renewable natural resources, systematic studies have become inevitable in order to reach an efficient management model. One of the efficient tools to meet the water needs of the drinking, agricultural and industrial sectors is the extraction of water from the sources and its transfer to the requesting sectors. Therefore, the creation of effective mechanisms for supply management And demand can be a problem solver in this regard. [2]

Water transfer systems are usually either gravity or pumping, which can be used for different purposes in transmission and distribution channels through piping systems.  Several factors affect the efficiency of these systems, including the topographical conditions of the transmission route from the origin to the place of consumption, land slope, soil quality, and other factors. The construction of the Simre dam in the Shahr Valley region and the potential of its water intake lands and the transfer of part of the water from this river to the upstream area of ??the Simre dam are among the strategies that can be effective in creating sustainable development in the region. For this purpose, examining the methods of improving transmission efficiency is one of the most important things that can contribute to sustainable development. The need to transfer water in a wide area (a distance of 220 km from the end of the Simre river in Kohdasht-Abbas Khan city and the beginning of the Simre dam intake) and at different levels from the sea level (the source of the Simre river at 1030 meters and the Shahr valley at 2247 meters above sea level) requires the use of The water transfer channels are under pressure by the system for water pumping. This system enables the conditions for water extraction by suction systems. Considering the need to increase the water level of the Simre dam to meet the needs of consumers, how to transfer water by pumping method from the main branches of the Simre river is checked using the software. In this regard, the question that can be raised is what are the tools and systems needed to transfer this volume of water and what is the percentage of efficiency and effectiveness of this plan. 1-3- The importance and necessity of conducting research: One of the most important and strategic policies in the field of developing the efficiency of using water resources and optimal water management in the world is the use of water transfer projects from susceptible sources and aquifers to areas that have other potential. such as agricultural lands and pastures, have had a severe shortage of water resources. In this regard, water transfer projects, especially from water sources such as rivers to other rivers or from dams to rivers, etc. Normally, they are running or in productive conditions at the world level. [3] Within the country, areas like Ilam province have pure potentials and capacities in the field of agriculture and animal husbandry, where the lack of water resources causes farmers to waste their efforts on the one hand, and on the other hand, the maximum production capacity is not used. One of the important approaches in this field is the transfer of water from the abundant sources of the Simre River, which passes through several provinces of the country, especially in areas such as Dere Shahr.