Investigation of the Effect of water level on deep seawater intakes

Feedwater supply for coastal desalination plants, powerplants and other coastal industries using marine intakes has become a common approach during last years. Besides providing water with high quality, intake design should be economically and environmentally acceptable too. The intakes are generall...

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Main Authors: Mohammad Hajitabar, Ozeair Abessi, Mehdi Hamidi
Format: Article
Language:fas
Published: Iranian Association of Naval Architecture and Marine Engineering 2021-05-01
Series:نشریه مهندسی دریا
Subjects:
Online Access:http://marine-eng.ir/article-1-876-en.html
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author Mohammad Hajitabar
Ozeair Abessi
Mehdi Hamidi
author_facet Mohammad Hajitabar
Ozeair Abessi
Mehdi Hamidi
author_sort Mohammad Hajitabar
collection DOAJ
description Feedwater supply for coastal desalination plants, powerplants and other coastal industries using marine intakes has become a common approach during last years. Besides providing water with high quality, intake design should be economically and environmentally acceptable too. The intakes are generally divided into two groups i.e. direct and indirect intakes. The efficiency of direct intakes is a function of sea conditions such as the changes in seawater level and the hydrodynamic of the waves and tides. In deep intakes, the size of the cap, changes in seawater level, and consequently changes in water inflow are challenging design parameters. Seawater level changes due to tides, and the potential effects of climate change and global warming can disrupt the functionality of deep intake systems. In this study, the effect of sea-level changes on the performance of deep intakes has been investigated by studying the hydraulics of the velocity cap along the nearfield. So, an experimental and computational fluid dynamics model has been developed to investigate flow regimes at the location of the velocity cap, vicinity of the surface, and at the sea floor. Density stratification, wave effects, and ambient current have been ignored, so the simulations only developed for stagnant and non-stratifield conditions.
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spelling doaj.art-7c884c37b9914ba2ba913ff4fda57b4f2022-12-21T22:22:32ZfasIranian Association of Naval Architecture and Marine Engineeringنشریه مهندسی دریا1735-76082645-81362021-05-01173397109Investigation of the Effect of water level on deep seawater intakesMohammad Hajitabar0Ozeair Abessi1Mehdi Hamidi2 School of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran School of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran School of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran Feedwater supply for coastal desalination plants, powerplants and other coastal industries using marine intakes has become a common approach during last years. Besides providing water with high quality, intake design should be economically and environmentally acceptable too. The intakes are generally divided into two groups i.e. direct and indirect intakes. The efficiency of direct intakes is a function of sea conditions such as the changes in seawater level and the hydrodynamic of the waves and tides. In deep intakes, the size of the cap, changes in seawater level, and consequently changes in water inflow are challenging design parameters. Seawater level changes due to tides, and the potential effects of climate change and global warming can disrupt the functionality of deep intake systems. In this study, the effect of sea-level changes on the performance of deep intakes has been investigated by studying the hydraulics of the velocity cap along the nearfield. So, an experimental and computational fluid dynamics model has been developed to investigate flow regimes at the location of the velocity cap, vicinity of the surface, and at the sea floor. Density stratification, wave effects, and ambient current have been ignored, so the simulations only developed for stagnant and non-stratifield conditions.http://marine-eng.ir/article-1-876-en.htmldeep intakewater level changesnumerical modelingcfdflow velocity
spellingShingle Mohammad Hajitabar
Ozeair Abessi
Mehdi Hamidi
Investigation of the Effect of water level on deep seawater intakes
نشریه مهندسی دریا
deep intake
water level changes
numerical modeling
cfd
flow velocity
title Investigation of the Effect of water level on deep seawater intakes
title_full Investigation of the Effect of water level on deep seawater intakes
title_fullStr Investigation of the Effect of water level on deep seawater intakes
title_full_unstemmed Investigation of the Effect of water level on deep seawater intakes
title_short Investigation of the Effect of water level on deep seawater intakes
title_sort investigation of the effect of water level on deep seawater intakes
topic deep intake
water level changes
numerical modeling
cfd
flow velocity
url http://marine-eng.ir/article-1-876-en.html
work_keys_str_mv AT mohammadhajitabar investigationoftheeffectofwaterlevelondeepseawaterintakes
AT ozeairabessi investigationoftheeffectofwaterlevelondeepseawaterintakes
AT mehdihamidi investigationoftheeffectofwaterlevelondeepseawaterintakes