Determination of Vortex and Critical Submergence of Submersible Pumps

Orhan, Nuri

doi:10.15316/sjafs.2021.244

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…The tests were conducted at a depth of 188 cm (continuous hydraulic head). The level meter measured the drawdown (Δ) [23].…”

Section: Methodsmentioning

confidence: 99%

Effect of Different Screen Types on Head Loss in Deep Wells Used for Irrigation

Orhan

2023

Turkish Journal of Civil Engineering

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This research was carried out with the help of a deep well simulator, which is commonly utilized for irrigation studies. In this study, flow types based on Reynolds number, well drawdown, head losses, and cost changes of these head losses were analyzed for four different sieve types used in wells. In addition, the flow types and head losses for the types of screen used were examined as per the theoretical calculations. Theoretically, the turbulent head loss among types of screens was calculated at the highest (0.37 m) in the bridge slot screen (ST4) and at least (0.028 m) in the round slot (ST3). The drawdown is the sum of the head losses for deep wells. Among the well-types, the maximum drawdown (113.46 cm) was measured within the bridge slot well type (WT4), and the minimum drawdown (50.37 cm) was measured in the horizontal slot oblong well type (WT2). The least head loss per unit flow rate in the wells was measured in the well, which was formed with a horizontal oblong slot (WT2) screen. Here, gravel and screen hole position affected the percentage of clogging in the screens. Overclogging of the screens caused the narrowing of the opening area, increased flow velocity and turbulent head loss, and increased drawdown. It has been revealed that the use of a horizontal oblong slot screen minimizes the head loss in the wells, depending on the physical properties of the gravel used in this study. One of the most important factors to be considered in well designs is the compatibility of the screen type depending on the physical properties of the gravel. Even the change of the geometric shape among the screen types having similar apertures changed the blockage of the gravel, causing the head loss to change. The well-designers should pay attention to the selection of gravel depending on the screen type or the selection of the screen depending on the type of gravel used.

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“…The tests were conducted at a depth of 188 cm (continuous hydraulic head). The level meter measured the drawdown (Δ) [23].…”

Section: Methodsmentioning

confidence: 99%

Effect of Different Screen Types on Head Loss in Deep Wells Used for Irrigation

Orhan

2023

Turkish Journal of Civil Engineering

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“…In another study, it was emphasized that determining the dynamic submersion depth of the deep water well pump installation as 2-3 m and placing it according to this level depending on the fixed deep water well equipment and feeding would be more appropriate for the pump. Working conditions [7][8].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Evaluation of Ömerli Basin (Mardin, Southeastern Türkiye) Groundwater Potential using the GIS-Based Analytical Hierarchy Process (AHP) approach

ASLAN

2024

Sakarya University Journal of Science

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Water, which is an indispensable element of human life, is a basic need for other living things and nature. Groundwater, which is the world's freshwater resource, has low cost usage opportunities because it is generally of good quality and does not need to be treated. Accordingly, in recent years, there has been an excessive increase in the use of groundwater due to the low rainfall and limited surface waters. Therefore, it has become important to know the hydraulic properties of the aquifer in the evaluation techniques of groundwater resources. It is important that the methods used in the evaluation are suitable for the structure of the aquifer in order to obtain healthy results. In support of these explanations, the AHP technique, one of the GIS supported MCDM methods, was used in order to reveal the underground water potential of the Mardin province Omerli district basin. Raster maps were first created in the GIS program ArcGis ArcMap environment, and then reclassified maps were produced. These data regarding the press study were obtained from official institutions and private drilling companies dealing with groundwater. In the first stage of the study, data related to groundwater potential such as static water level, dynamic water level, well yield, depth and residual were modeled. In the second stage, these data are weighted in AHP and then the result map; It was created and interpreted with very bad, bad, moderate, good and very good values. In the third and last stage, the results and recommendations are discussed.

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Determination of Vortex and Critical Submergence of Submersible Pumps

Cited by 2 publications

References 18 publications

Effect of Different Screen Types on Head Loss in Deep Wells Used for Irrigation

Effect of Different Screen Types on Head Loss in Deep Wells Used for Irrigation

Modeling and Evaluation of Ömerli Basin (Mardin, Southeastern Türkiye) Groundwater Potential using the GIS-Based Analytical Hierarchy Process (AHP) approach

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