American Eco Systems Corporation Elmosa Seawater Intake and Outfall Systems 2013 Elmosa Brochure

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Natural Intake and Outfall System. Nature does all the work.

combined with NatSep do the rest, just relax.

1 American Eco Systems Corporation Elmosa Seawater Intake and Outfall Systems 2013 Elmosa Brochure The InvisiHead, The Natural Intake and Outfall System. Nature does all the work. All you do is just turn on the seawater pumps the InvisiHead combined with NatSep do the rest, just relax. No more backwash or air bursting to worry about. No more pressure drop or clogging. No more sediment or marine growth in the pipe. Simply no more operation or maintenance. All remain in DAY 1 condition 1 for decades to pass.

2 With the InvisiHead intake head in place offshore you will have clean water supplies free of: sea grass dead seaweeds spilled oil sand silt trash mussels jellyfish, fish 2

American Eco Systems Elmosa Seawater Intake and Outfall Systems The InvisiHead meets and exceeds all worldwide environmental regulations around the world.

3 American Eco Systems Elmosa Seawater Intake and Outfall Systems The InvisiHead meets and exceeds all worldwide environmental regulations around the world. Use EPA designation as the best technology available has been supported by the Australian Ministry of Environment, Aus. EPA and Canada s DFO The InvisiHead, the Pipeline whether it is made of steel, steel lined with polyethylene, concrete, or high density polyethylene (HDPE) pipe, and the NatSep all form the complete Elmosa offshore/onshore seawater intake system. The paraboloidal omnidirectional InvisiHead (IH) intake head system adds to the performance of the offshore system. The flow funnels in as a round surround naturally reducing flow activities to very immediate area around the IH. The IH is fitted to the upstream end of the intake system pipeline located some distance into the sea from the shoreline. Entrance velocity is lower than m/s (0.3 fps). The approach velocity is extremely slow at m/s (0.0065fps. the IH intake head becomes hydraulically invisible to suspended matter. In other words, the Intake head does not act as a sink point and therefore does not suck in debris or sediment or marine life. The system meets and exceeds all known environmental regulations. The US Environmental protection Agency intake head entrance maximum limit is set at 0.15 m/s. Super slow entrance velocity ensures the absolute minimum of sediment, marine life, oxygen, and debris entrainment if any. It also leads to lower head losses and lower level drawdown at the pump intake basin. The IH entrance section is hydraulically balanced and fine tuned in lab tests to be in phase with flow streamlines. In 2012 the 4 sequential flow phase further tuned to have smoother transition from phase to phase to eliminate any flow of sediment, debris or marine life, The entrance dimensions are not arbitrarily selected but hydraulically calculated and selected in multi dimensional approach and through physical model setup and testing. Each dimension is a function of the steady flow velocity. Eddies, by this approach, are totally eliminated thus head losses at the IH are reduced to a fraction of a millimeter. 3

The InvisiHead Best Available Technology (BAT) as designated by the US EPA The InvisiHead is operation free and also maintenance free The key to preserving the intake integrity is to maintain the

Inferior designs of the upstream inlet of intake pipelines can lead to creating high negative pressures at and around the inlet (intake mouth), which will result in the suction of sand, fish, seaweed

4 The InvisiHead Best Available Technology (BAT) as designated by the US EPA The InvisiHead is operation free and also maintenance free The key to preserving the intake integrity is to maintain the original ambient conditions at the spot where water is to be drawn into the intake pipeline and transported onshore. Inferior designs of the upstream inlet of intake pipelines can lead to creating high negative pressures at and around the inlet (intake mouth), which will result in the suction of sand, fish, seaweed and other debris. The inlet has to be properly designed. The InvisiHead is created to address that very notion: be hydraulically invisible and act like if you were not there. Be selective and admit water only. Nature does the system management including operation and maintenance for life. Anti biofouling disinfectant despising system is a built in the InvisiHead option. The InvisiHead is designed and built to have over 50 years of operational life. It is a robust structure built to stand all stormy conditions and deliver full capacity at all times. 4

Flow into the IH: Approach, Stabilization, Acceleration, Steady Flow Many intake systems have either proven to be very costly to build, operate, and maintain like mechanical screened systems or wedge

Offshore intake systems can be upgraded and highly improved by a balanced and well designed intake head system that fully utilizes natural forces, i.e. the potential flow principle in guiding water particles in smooth, uniform streamlines into the intake head.

5 Flow into the IH: Approach, Stabilization, Acceleration, Steady Flow Many intake systems have either proven to be very costly to build, operate, and maintain like mechanical screened systems or wedge wire screens; or have involved a great deal of guesswork during the design phase that produces less than optimal results. Offshore intake systems can be upgraded and highly improved by a balanced and well designed intake head system that fully utilizes natural forces, i.e. the potential flow principle in guiding water particles in smooth, uniform streamlines into the intake head. The InvisiHead intake head system conceived to act like no other intake head. It is divided into four distinctive sequential flow phases: Approach, Stabilization, Acceleration, Steady Flow. In 2012 the sequential order of the flow phases has been further smoothed up to eliminate flow of sediments and debris. It was a meticulous task to tune the InvisiHead and to divide the through flow regime into four sequentially mating flow phases. This process led to what the InvisiHead is. Super smooth flow transition from one phase to the next leads the flow through into the pipeline upstream end at a stealth fashion. The way the flow nets formed at and around the IH made it virtually invisible in hydraulic terms to suspended matter. There where the InvisiHead borrowed its name. The InvisiHead works as an outfall. Heat and effluent dispersion and dilution takes place at the immediate vicinity of the InvisiHead The InvisiHead system works also as a superb sea outfall. It diffuses the effluent in such a manner that it does not rise up to the surface or sinks to the sea floor. The dispersed effluent mixes with the ambient deep water and in a short time while still close to the diffuser it assumes physical and chemical properties of the surrounding seawater. The InvisiHead works as an efficient heat transfer system when used as a power plant cooling water outfall. The heat plume disappears into the ambient water a few meters away from the InvisiHead diffuser outlet. If heat or brine sensors are installed 10 meters away from the outfall would register no change. 5

The extremely low velocity discharge through the IH diffuser allows it to reach the ambient conditions only a few meters away from the tip of the outlet.

6 The extremely low velocity discharge through the IH diffuser allows it to reach the ambient conditions only a few meters away from the tip of the outlet. At that location TDS or thermal sensors will show no gain in temperature or salinity rise. At only 5 meters away from the diffuser outer tip, the velocity approaches m/s. The 3 D dispersion action of the discharged effluent insures rapid mixing with ambient water. Ambient conditions are reached nearly soon after the effluent leaves the diffuser. For coastal areas and through the environmental perspective, a once through cooling system (with large heat and brine dissipation requirements), the IH proves to be the best option acceptable for Base Case design. For once through cooling water systems brine or municipal wastewater discharge, the IH design as an intake and outfall contains and achieves the following: Adequate mixing and dispersion takes place within the very close vicinity of the outfall; The extension of the discharge plumes is neutralized within 5 meters from the IH structure and ambient conditions are reached within that space (spatially and temporally); The discharge loads do not materially adversely affect other users of the receiving water; The InvisiHead sea outfall diffuser is also developed for protecting any critical areas such as spawning grounds or migration areas, e.g. location of outfall (depth of intake relative to organism habitat). 6

Further flow polishing is done in case of stormy and turbulent conditions The NatSep is designed to separate any sediment that may flow through into the basin as part of the water flowing into and

7 Further flow polishing is done in case of stormy and turbulent conditions The NatSep is designed to separate any sediment that may flow through into the basin as part of the water flowing into and through the IH. By the time the flow reaches the seawater pump bay it is free of sand and weeds. The NatSep design upgrading is included in the intake system performance improvement. As soon as the seawater pumps at the pump house are turned on the water level at the NatSep drops creating a level difference between the mean sea level and water level at the NatSep. That level drop is what drives the water into the InvisiHead offshore and through the intake pipe to the NatSep onshore. No pumps are needed at offshore upstream location. The NatSep separation basin is the place where whatever sand and debris that may flow into the IH during stormy weather if the whole water column goes into full mixing under the extraordinary turbulent conditions, any sediment becomes associated with the flow as a result of the abnormal conditions gets naturally separated and settled at the NatSep intake basin long before it reaches the seawater pump intake bay. Cleaning of the NatSep basin is done once or twice a year. The NatSep is subdivided into two 100% capacity bays so as to perform cleaning without the need for a plant shutdown. Elmosa has discontinued the use of all mechanical screening systems including stationary and traveling long ago. They are no longer 7 needed when the InvisiHead NatSep intake basin technologies are combined.

The conveyer that links the sending offshore intake structure to the receiving onshore one, the intake pipeline High-Density Polyethylene (HDPE) Pipe for Elmosa Seawater Intake Systems Elmosa

8 The conveyer that links the sending offshore intake structure to the receiving onshore one, the intake pipeline High-Density Polyethylene (HDPE) Pipe for Elmosa Seawater Intake Systems Elmosa Offshore Seawater Intake systems consist of: 1. The InvisiHead that is positioned at the offshore upstream end of the intake pipeline located between 50 to 10,000 meters offshore from the shoreline. The offshore distance depends on water depth, wave action, and on other site conditions. The IH is usually located under a minimum of 2 meters of water. There is no maximum depth limit however. 2. The intake pipeline that is made of either concrete, steel, steel lined with polyethylene, or high density polyethylene (HDPE) pipe. The pipeline is the link that connects the IH at the upstream offshore end with the NatSep separation basin located at the onshore downstream end. 3. The NatSep separation basin is where whatever sand and debris that flow into the IH is naturally separated and settled. The flow reaching the pumps is clean and free of sediment and debris. 8

Sea grass or seaweed is becoming a seawater intake nuisance worldwide. Global warming is behind the appearance of the weeds in places where once they were too cold for the weeds to grow.

9 Sea grass or seaweed is becoming a seawater intake nuisance worldwide. Global warming is behind the appearance of the weeds in places where once they were too cold for the weeds to grow. The weeds and sediments rendered wedge wire and other conventional seawater intake systems absolute and unusable at best. It is too expensive to keep them in operation. The InvisiHead stealthily withdraws the water from between the leaves without disturbing 9 the surroundings. The IH simply makes itself as if it were inactive structure amongst the offshore seaweed jungles.

We have added a new version of the InvisiHead to be installed and used at platforms and in LPG offshore stations The offshore platforms/lpg terminals can get

It can be fixed on the sea floor or at any level just off the platform structure and be connected to the pump or pumps.

10 We have added a new version of the InvisiHead to be installed and used at platforms and in LPG offshore stations The offshore platforms/lpg terminals can get clean water ore discharge effluents by installing the InvisiHead. It can be fixed on the sea floor or at any level just off the platform structure and be connected to the pump or pumps. The InvisiHead this way will act as a strainer of high quality that lets through no sediments, marine life or any debris. The InvisiHead can also be fixed to an over hang supported to the mother structure. It also works as a superb outfall meeting and exceeding all environmental standards. 10

The InvisiHead fixed on a supported platform overhang or a cantilever beam works as a seawater intake system or a high quality pump strainer A meter or so away from the platform structure will be a

11 The InvisiHead fixed on a supported platform overhang or a cantilever beam works as a seawater intake system or a high quality pump strainer A meter or so away from the platform structure will be a good position to provide the platform with a clean supply of seawater. The InvisiHead will provide the flow capacity round the clock under all operation and weather conditions for many decades to come. The InvisiHead a robust structure made of thick duplex or 316 stainless steel. 11

The InvisiHead meets and exceeds regulatory body discharge standards be it power plant cooling

12 The InvisiHead also can serve offshore installations so as to safely discharge their effluents and in the proper way and remain in compliance with effluent discharge regulations. The InvisiHead meets and exceeds regulatory body discharge standards be it power plant cooling water, seawater desalination brine, municipal wastewater, aquaculture 12 farms, oil refineries, petrochemical plants, etc.

13 The InvisiHead can neatly be fixed to the offshore and can adequately discharge and disperse the effluent in an acceptable manner. We customize each system to fit the flow conditions. 13

14 American Eco Systems Corp Elmosa Seawater Intake Systems 540 Centre Street, Nutley, NJ 07110, USA t: f: e: elmosa@amecosys.com 14 American Eco Systems, Elmosa Seawater Intake Systems 20

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