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This month’s case study features a newly constructed refrigeration system with 10 walk-in cold stores and freezer rooms distributed across 19 floors at Hotel Alsik in Sønderborg , Denmark.

Just over a year ago Hotel Alsik opened its doors for the first time. Construction of the hotel which features restaurants and spa areas, was part of a larger project involving Sønderborg’s waterfront, with the hotel supporting the town’s vision of being CO2-neutral by 2029.

Here the focus was firmly on sustainability and high quality. For this reason, Alsik is also acting as a showroom for the special Clean Tech expertise of the companies in the Sønderborg area. One of them is BITZER. 

From the cellar to the attic space, Hotel Alsik used materials of the highest quality.

The refrigeration system, which is based in the cellar, provides cooling for 10 different cold stores and freezer rooms across different locations.

The system includes ten BITZER ECOLINE semi-hermetic reciprocating compressors with water-cooled shell and tube condensers from the BITZER K-3 series.

Together they ensure the correct temperatures in the various kitchens, cold stores and freezer rooms of the hotel.

The solution also provides high performance refrigeration capacity and low energy costs.

The design of the compressors allows for the use of low-GWP refrigerants like R449A and R513A.

Components were supplied by wholesaler, H. Jessen Jürgensen A/S and fitted by the Climate A/S. 

Jessen Jürgensen sales engineer, Carsten Pedersen, said the focus of the project was on sustainability, quality and performance.

“As a refrigeration wholesaler, it's a pleasure for us to work with customers like Climate who appreciate the value of our technical support and product specialists,” he said.

Hotel Alsik facility manager, Michael Kurth, has the daily job of supervising all the cold stores and freezer rooms, which also includes several wine cabinets in both the cellar and on floor 18.  “The refrigeration system has worked well from day one, we haven’t experienced a single complication,” Kurth said.

At the moment, heat is transferred from the closed refrigerating circuit to a free cooler. In the long term, Hotel Alsik is planning to exploit this heat and make use of it in a heat pump for domestic hot water or space heating.

Climate sales manager, Jørgen Ludvigsen, said the system’s design will also make it easier to troubleshoot in the future.

“The way in which the system is designed, constructed and positioned means not only does it look great, but it is easier for our technicians to provide the correct service,” he said.

“It’s easy to access and it’s clear how the individual components are connected.”

 

 

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