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Container with cooling capacity

Cooling facilities in ambient temperatures of up to 50 °C are a well-known challenge in the industry.  SWEP's containerized, Energy Transfer Stations for district cooling provide the solution.

Apart from producing brazed plate heat exchangers, SWEP specializes in providing highly efficient pre-fabricated Energy Transfer Stations (ETS) – also called substations.
According to Shwan Lamei, Area Sales Manager at SWEP, the company's substations work as an interface between district cooling suppliers and consumers.
“So far, we have installed more than 100 pre-fabricated ETS globally for cooling purposes” he says. “Aside from cooling substations, we have also delivered thousands of heating substations in many parts of the world.”
“The containerized concept is fully operational. We can deliver ETS with commissioning in two days. Lamei adds. “With our solution, we take the pre-fabricated concept and its advantages to a whole new level. We essentially offer our customers fully functioning ETS-rooms that are designed and built in Sweden, but connected to our customers' systems anywhere in the world.”
In the Middle East, customers will use SWEP's district cooling solutions primarily for comfort cooling. However, process cooling applications will also be served. The container solutions have to withstand ambient temperatures of up to about 50 °C, which is quite common during the day in the desert. To protect the substation equipment from moisture, it is insulated and cooled internally with fan coil units. The container itself has a thick insulation of styrofoam-like material.
“It is a modular concept – this particular container has two substation modules, and can handle capacities up to 2000 kW,” Lamei says. “Our brazed plate heat exchangers are compact, so they fit into a standard sized 20-foot container. In the larger 40-foot containers, up to 4,000 kW can be achieved". Says Lamei: “Once the container is on the customer site, they just connect it with the four pipes on the primary and secondary side, turn on the electricity, connect it to the control system, and they are up and running.” Everything in the container solution is designed in terms of premium back-up features to avoid down time. To achieve an even higher capacity, customers can easily connect several containers in parallel. “It can also be used as a mobile unit. Since it is designed with modules it is easy to scale up or down based on customer needs,” Lamei says.

FACTS
Benefits in choosing pre-fabricated sub-stations compared to building them on site:

  • Shorter lead time
  • Easy installation and maintenance process
  • Extremely compact systems.
  • Performance guaranteed from one single-source supplier
  • Simplified project planning for contractors and utility companies – one interface instead of several for each component
  • System cost visible at initial contact
  • Higher quality