FPSO Engineering

Evopod completes trials

The Evopod is a device for generating electricity from coastal tidal streams, tidal estuaries, rivers and ocean currents and rather than being attached to the seabed it offers a unique floating solution for tidal energy generation. The designers, Oceanflow claim that this type of solution offers a much cheaper and easier form of tidal generator because intervention in the event of failure is much easier with a floating solution. Now the Evopod development has moved further ahead with the completion of 6 months of winter deployment reportedly without problems. For floating units Oceanflow claims that it is important that the floating platform supporting the turbines does not pick up motions from passing waves and that the turbine can be kept away from wave action in average sea conditions. ...

Design and construction of the Eneco Luchterduinen offshore wind farm

In September 2015, the Eneco Luchterduinen offshore wind park has been officially opened. As an EPC contractor, Van Oord was responsible for the engineering, procurement and construction of the foundations, electrical infrastructure and turbines. With a total capacity of 129 megawatts, almost 150,000 Dutch households are now being provided with renewable energy.

Sewage Treatment Plant on a Ship Explained

Discarding sewage produced onboard on a ship is one of the few tasks on a ship which should be taken utmost care of if one wants to same him and his shipping company from heavy fine. The sewage generated on the ship cannot be stored on the ship for a very long time and it for this reason it has to be discharged into the sea. Though sewage can be discharged into the sea, we cannot discharge it directly overboard as there are some regulations regarding discharging of sewage that needs to be followed. Sewage on sea is generally the waste produced from toilets, urinals and WC scuppers. The rules say that the sewage can be discharged into the sea water only after it is treated and the distance of the ship is 4 nautical miles from the nearest land. But if the sewage is not treated this can be di...

The Hazards and regulations regarding the Sewage Systems

Raw sewage discharged into restricted waters will eventually overwhelm the self-purification ability of the limited quantity of water. In a closed dock the effect can be seen in a black sludgy water which when disturbed gives off an unpleasant smell possibly Hydrogen Sulphide. When the quantity of sludge is reasonable aerobic bacteria digest the sewage breaking it down to simple compounds and Carbon dioxide using up Oxygen in the process. These compounds and Carbon dioxide promote plant life which returns oxygen to the water. When the quantity of Oxygen becomes so depleted that the aerobic bacteria can no longer function, anaerobic or bacteria not requiring Oxygen to function will take over. The breakdown of the sludge is then associated with the same process of decay with foul smelling an...

Types of Sewage Treatment

Legislation preventing the discharge of untreated waste overboard has been in place for some time with a requirement that it should be retrofitted where not already in use. American legislation defines three types of sewage treatment units.   Type Ⅰ  A device capable of discharging effluent having no floating solids and a coliform count of less than 1000 per 100ml of effluent. Type II  A device capable of discharging effluent with suspended solids not in excess of 150mg/litre and a coliform count of less than 200 per 100ml. Type III  A device to prevent the discharge overboard of treated or untreated waste. Ventilation systems are to be kept independent of other vents A log is to be kept of any discharge overboard from a holding tank.     Aerobic (Biological) Treatment plant...

10 Important Things to Check While Starting Fuel Oil Purifier on Ships

Every engine room machinery system needs systematic step-by-step starting...

Marine Oil Purifier

Oil purifiers are used on board ship to condition fuel oil and lubricating oil.The fuel oil used on ships ...

LNG FPSO MPDS (Multi-Purpose Dynamic Simulator) PROJECT (4) – Fractionation Unit & Fuel Gas Unit

The Fractionation Unit (F-5000) is to process the heavy hydrocarbons separated from the sweat and dry feed gas in the scrubber column (L-C-4001) of the liquefaction unit (L-4000). The fractionation unit consists of three (3) distillation columns in series, Deethanizer (F-C-5001), Depropanizer (F-C-5002) and Debutanizer

LNG FPSO MPDS (Multi-Purpose Dynamic Simulator) PROJECT (3) – Liquefaction Unit

Offshore liquefaction facilities have different design criteria and process requirement from the on-shore liquefaction facilities. Thermodynamic efficiency is the most important factor for the large scale LNG production plant in both on-shore and offshore processes, but the offshore liquefaction facilities have different design requirements ....

LNG FPSO MPDS (Multi-Purpose Dynamic Simulator) PROJECT (2) – Dehydration Unit & Mercury Removal Unit

The Dehydration Unit (D-2000) is to remove water from the natural gas feed prior to the pre-cooling of the gas. Three fixed molecular sieve beds operating in parallel are used in the process. At any given time two of the beds are in the adsorption cycle while the other bed is in the regeneration cycle.

LNG FPSO MPDS (Multi-Purpose Dynamic Simulator) PROJECT (1) – General & Acid Gas Removal Unit

The process is designed for the MPDS (Multi-Purpose Dynamic Simulator) development of the LNG (Liquefied Natural Gas) FPSO (Floating Production Storage and Offloading) topside process. The design concept, engineering data and information included in this document and “Basic and Engineering Design Package ....

SEPARATOR

SEPARATOR : The term separator in oilfield terminology designates a pressure vessel used for separating well fluids produced from oil and gas wells into gaseous and liquid components. A separator for petroleum production is a large vessel designed to separate production fluids into their constituent components of oil, gas and water. A separating vessel may be referred to in the following ways: Oil and gas separator, Separator, Stage separator, Trap, Knockout vessel (Knockout drum, knockout trap, water knockout, or liquid knockout), Flash chamber (flash vessel or flash trap), Expansion separator or expansion vessel, Scrubber (gas scrubber), Filter (gas filter).

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