References

  • Crude Oil Pipeline control

    Crude Oil Pipeline control

    Crude oil pipeline control

    Project Brief:

    Crude Oil Pipeline instrumentation and control system. Includes development of the control system, software and production of the control panels.

    Facts

    Project in accordance to strict oil company specification 

    Scope of supply:

    Control system and Instrumentation supply,
    Supervision and commissioning

  • EPC utility project

    EPC utility project

    Project Brief:

    Our group was contracted to Engineer, Procure and Construct an industrial cooling plant including all related works. The district cooling plant was designed to provide central cooling for a number of commercial and residential buildings. The plant room housed 316.500,0 kW of refrigeration capacity including three thermal storage tanks with a combined capacity of 351.700,0 kW.

    EPC utility project

    Facts

    More than 350.000 kW of cooling capacity using duplex centrifugal chillers.
    Complete turnkey project inclusive of civil works
    Cooled water system with 4 pumps, each with 1563 kW motor

    Scope of supply:

    EPC project including all civil constructions.

     

  • Concrete cooling

    Concrete cooling

    Project Brief:

    A complete system for the production of 50 tons / day of flake ice to be used in the concrete production process. The refrigeration plant was completely produced in containerized form with ice storage and ice distribution system integrated within container. Thus, a highly mobile system was manufactured that could be easily relocated to different place of construction. 

    Concrete cooling

    Facts

    50 tons / day production of ice,
    fully automated operation,
    combined ice production and ice storage.

    Scope of supply:

    Containerized ice production plant.
    Containerized ice storage plant.
    Ice delivering system.
    Installation and commissioning.

  • Customized compressor skid

    Customized compressor skid

    Customized compressor skid

    Project brief:

    Custom-built compressor refrigeration skid for low temperature application. 

    Facts

    Fully assembled in our factory skids

    Scope of supply:

    Compressor skid with power and control system, including installation and commissioning

  • Ski dome Dubai

    Ski dome Dubai

    Project Brief:

    Industrial refrigeration plant with NH3 as refrigerant with capacity of 2600 kW. Project included full design, engineering and delivery of:

    • refrigeration plant; 
    • floor construction; 
    • airconditioning systems;
    • snow production units. 

    Ski Dubai is a central part of the Mall of the Emirates which is one of the biggest in the world. This indoor snow center is providing all-year-round snow experience practically in the middle of the desert with the temperature minus 4 degrees Celsius.

    Ski Dome Dubai

    Facts

    1500 visitors capacity
    22.500 m2 covered with snow all year round
    5 different slopes
    longest run 400 m

    Scope of supply:

    Turn-key system for Refrigeration plant, snow slope, air-conditioning.

  • Industrial ammonia refrigeration

    Ammonia industrial plant

    Project brief:

    Ammonia refrigeration plant with 10 industrial screw compressors with 3 different temperature levels. Cooling system is working as central utility room for all consumers of the factory.
    Central SCADA system provides visualization and control of system operation.

    Industrial ammonia refrigeration

    Facts

    10 industrial screw compressors.
    Cooling capacity 10500 kW.

    Scope of supply:

    Refrigerating equipment compressor room, cooling equipment for process rooms. 
    Installation, commissioning.

  • Containerized block ice factory

    Containerized block ice factory

    Project brief:

    Fully automated containerized plant for the production of block ice. The refrigeration plant is mounted within one container with all equipment inside while the ice production is in the second container. Ice production zone comprises of stainless steel material.

    Containerized ice factory

    Facts

    Fully containerized solution
    Automatic operation

    Scope of supply:

    Containerized production facility in 2 x 40ft containers

  • Customized liquid cooling

    Customized liquid cooling

    Project brief:

    Complete industrial screw ammonia refrigeration plant for process cooling. System operates under control of centralized automation system based on industrial PLC (Siemens).

    Customized liquid cooling

    Facts

    5 compressor skids with 560 kW motors

    Scope of supply:

    Turn-key project for process plant, including erection, commissioning.

  • BOG Application for Ammonia Storage

    BOG Application for Ammonia Storage

    Polar Refrigeration delivered a screw compressor skid to a chemical plant where major part is production of ammonia (NH3).

    Ammonia is one of the most highly produced inorganic chemicals. Ammonia production plants worldwide producing more than 130 million of tonnes of ammonia per year, mainly used for fertilizing agricultural crops. Furthermore Ammonia is also used for the production of plastics, fibres, explosives and intermediates for dyes and pharmaceuticals.

    Today, most ammonia is produced on a large scale by the Haber-Bosch process with capacities of up to 3,300 metric tons per day. The generated liquid ammonia from the process is stored in storage tanks.

    Due to heat entering the tanks during storage , a portion of the ammonia continuously evaporates, creating a gas called boil-off gas (BOG).

    BOG leads to an increase of the pressure in the tanks and losses of ammonia through the safety or blow-off valve which could have an impact to economic and safety problems.

    To maintain a constant pressure inside the storage tanks and to reduce losses over the ammonia supply chain the ammonia gas is continuously sucked off by a customized screw compressor skid made by Polar, where BOG is re-liquefied and sent back to the tanks. The screw compressor skid has been designed for operation in a hazardous zone.

    Principle

    The ammonia gas is sucked off by a screw compressor through installed on skid liquid separator vessel to protect compressor from droplets of liquid. Than gas is compressed and transferred to condenser. Gaseous ammonia is liquefied by cooling water. The liquid ammonia is collected into a receiver vessel. From the receiver liquid ammonia is directed back towards the storage tank.

    To increase availability of the system the most important parts of the system are redundant – compressor unit with oil circuits, oil pumps, oil filters, oil coolers, ammonia condensers.

    In order to minimize the pollution of process ammonia with the compressor oil skid is equipped with specially designed efficient oil separator that guarantees oil carry over not more then 5 ppm.

    The control logic of central control system is performed by remotely located PLC based on Simatic S7-300. Locally skid has explosion-proof control box to operate compressors during maintenance procedures.

    BOG Application

    Facts

    Technical data

    Make of compressor: GEA Grasso
    Type of compressor: L-type, screw, oil flooded
    No of compressor: 2 (1 working / 1 standby)
    Refrigerant: NH3 (R717)
    Design massflow: 2000 kg/h
    Design suction pressure: 6,16 bar(a)
    Discharge pressure: 17,8 bar(a)
    Motor rated power: 160 kW

    ATEX Specification

    Zone: Zone 2
    Group: II A
    Temperature class: T1

    BOG Application for Ammonia Storage
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