High efficiency chillers with a total capacity of 5,400 TRs and oil-free magnetic bearing centrifugal compressors – Turbocor installed by Klimatix at Laboratório Sirius, in Campinas (SP)

The construction of the Sirius synchrotron light laboratory is a work of high standard in Brazilian science. In a ring format, the laboratory has state-of-the-art particle accelerators at its core, capable of producing and controlling the movement of electrons at speeds close to that of light.

These electron accelerators generate synchrotron light, which reveals the microstructure of organic and inorganic materials.

Powerful magnets, installed inside the tunnel through which the beam of light passes, are used to accelerate and keep Sirius’ speed constant. Those magnets heat up and need a cooling system.

Companies, universities and other research institutions rent space in the laboratory and use Sirius light through powerful microscopes to carry out the most varied studies and scientific investigations.

The client’s demand was for an energy efficient cooling system, which would allow savings with reduced operating costs. In addition to the cooling of the light beam emission process, the client also needed precision air conditioning for its data center and comfort air conditioning for the research rooms.

Klimatix ‘s objective was to develop a cooling solution using high-efficiency air-cooled chillers , equipped with Turbocor compressors , Smardt technology.

 

Challenge

  • Size the number of chillers and TRs (tons/refrigeration) to meet the customer’s needs
  • The area for the installation of the chillers was already defined by the client;
  • The very small space, the chillers very close to each other, would not respect the minimum distance, there could be an air short-circuit.
  • The ring format of the laboratory construction causes strong lateral gusts of wind, which could hinder the outlet of the hot air emitted by the chillers , compromising the efficiency of the equipment.

Solution

  • Installation of 12 chillers , with a total of 5,400TRs;
  • Four Turbocor compressors installed in each chiller , total of 28 compressors;
  • Each chiller with nominal capacity of 500 TRs at 7ºC and effective capacity of 450 TRs at 5ºC, with efficiency of the order of 0.5 kW /TR;
  • Installation of the chillers at a height of one meter, necessary elevation to receive air from below (cooling of the condenser coils) and emit the hot air upwards, to avoid air short-circuits, due to the proximity of the equipment;
  • Air directors above the fans, to eject the air with enough force to cross the gusts of wind, caused by the ring-shaped building.

CHILLERS

chillers for air condensation, equipped with oil-free magnetic bearing centrifugal compressors ( Turbocor ). Total capacity of 5,400 TRs.

Result

The Klimatix chillers with Turbocor compressors significantly reduced the energy consumption of the Sirius Laboratory, in the cooling operation of the production process and control of the light beam, as well as in the precision and comfort air conditioning of the other units.

Talk With Us