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8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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Goals for Intake/Outfall Improvement
OVERVIEW
. eawa er ys em ass ca on
2. General Engineering Methodology
. y rau c ro ems an o ut ons4. Typical Intake Layouts
5. Goals
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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Goals for Intake/Outfall Improvement
1. Seawater System Classification
Seawater Supply
Pretreatmentand
Pumping
Return
Pumping Cooling Water and/or Br ine
Desal. PLANT
Return
(SW Consumer)
O en Channel Buried Pipes/Culverts Tunnel
Combinations of above
Open Pit/ wet Well
Closed Piping
Buried Pipes/Culverts Tunnel Combinations of above None direct outfall
None (direct intake)
Screening Filtration
Closed Piping Combinations None (gravity flow)
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
4/14
Goals for Intake/Outfall Improvement
2. General Engineering Methodology
LocationLayout and
Construction
INTERRELATED
Tender Requirements
Risk Assessmentand Contro l
Seawater Intakeand Outfall
ENGINEERING
ITERATION
PROCESS !
ProcessCosts
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
5/14
Goals for Intake/Outfall Improvement
Climate (Seawater and Air Temperatures, Rainfall, Wind, Ice)
2. General Engineering Methodology
Seismic Activity Water Quality (Suspended Solids, Chemical Composition and Properties) Tide Levels Soil Conditions a yme ry Environmental Regulations (Marine Life, Chemical Properties of Discharges, Noise) Neighborhood (Other SW Consumers, Industrial Area, nearby Villages) Marine Recirculation (Wind, Tidal Currents, Location of Intake/Outfall Points, etc. Oil S ill Warnin and Protection S stem Fish Protection System Sedimentation System Seawater Pre-Treatment (Chlorination, Screening, Filtering) Seawater Pumping (Flow, Pressure, NPSH, Approach Flow Conditions, Hydraulic Transients) ons ruc a y ea er, aves, o , a er ep , ze an ype o ruc ures Redundancy and Availability Effects during Construction (e.g. suspended solids)
Other Main and Auxiliary Equipment (Crane, Ventilation, I&C, etc.) Material Selection and Corrosion Protection Time Schedule (Construction Time, Equipment Delivery Time) Damages during Construction (Experience of (Sub-) Contractor, Inherent Safe Design) Damages during Operation (e.g. Ship Traffic, Wave Action) Protection against un-authorized Access
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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Goals for Intake/Outfall Improvement
2. General Engineering Methodology
COSTS
CAPEX Analysis of Capital Expenditures
OPEX Analysis of Operational Expenditures (over Plant Life Time, Contract Duration)
Analysis of
PLANT LIFE CYCLE COSTSon a case by case basis
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
7/14
Goals for Intake/Outfall Improvement
3. Hydraulic Problems and Solutions
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
8/14
Goals for Intake/Outfall Improvement
3. Hydraulic Problems and Solutions
Flow Optimization
Through Physical
Tests
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
9/14
Goals for Intake/Outfall Improvement
3. Hydraulic Problems and Solutions
Sink and Sunk Effects
Transient Flow Condit ions, Up- and Down-Surge
ssue n sys ems w ong o s ore p pes or cu ver s an w pumps oca e ons ore
Severe flooding possible after emergency shut down of pumps
Potential dry running of pumps dur ing pump start-up phase
To be careful ly analysed in design phase in order not to render pump s tation
operation imposs ible
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
10/14
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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Goals for Intake/Outfall Improvement
4. Typical Intake Layouts
Travelling Band Screen Installation Drum Screen Installation
Seawater Screening and Pumping Plants for Medium to Large Scale Installations
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
12/14
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
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Goals for Intake/Outfall Improvement
4. Typical Intake Layouts
Seawater Intake Arrangement with Integrated Air Backwash Filters
GFT Desalination GmbHDr.-Ing. Hartmut Rosenberger
8/13/2019 Goals for Seawater Intake, Outfall and Pretreatment Improvement for Membrane and Thermal Desalination Systems
14/14