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Meeting a hospital’s cooling needs and keeping power input low

Daikin has recently provided chillers for one of the biggest private hospitals in Qatar. The hospital has world-renowned international affiliations and the mission to provide optimal patient care by utilizing unparalleled and advanced services. For this reason, they needed reliable and advanced technology that could perfectly meet the needs of the 224-bed facility, which also includes 11 IPU (Integrated Procedures Unit), 15 NICU (Neonatal Intensive Care Unit), 8 CCU (Coronary Care Unit), 17 Pediatric and 12 ICU (Intensive Care Unit) beds, all in 101,000 sqm.

 

Products installed

8x EWAD-C
Cooling capacity: 11,000 kW

About the products and the project

For this project the main need was chillers with a low power input. The high efficiency and limited power were essential because they could not use more than the power already assigned to the building by the government. For this reason, the consultants for this project went for the premium efficiency version of these chillers. They needed that to meet the load needs of the hospital while keeping the power input of the chillers low. Other manufacturers that provide the same cooling capacity require higher power inputs.

Another reason to choose Daikin was reliability. These chillers will be installed on the rooftop of a facility near to the sea and hit directly by the sunlight. While this clearly creates conditions that might be hard to stand for chillers, the consultants have had very good experience with Daikin in similar projects, so they decided to confirm their trust in the brand. Additionally, the customers decided to have the units tested at Daikin Applied Europe’s factory, where the operating conditions were recreated in a dedicated climatic chamber. The units were tested at temperatures between 46° and 52° C, to ensure and prove that they could perform as expected under these conditions.

The reliability was very important because the chillers will provide cooling for equipment in multiple sensitive places, including the MRI and CT scan rooms. So, a reliable solution was fundamental to ensure both the comfort of patients and the process needs of the hospital were met.

More about the Daikin screw compressor technology

Daikin has a history of leadership in the field of single screw compressor chillers, which have been installed all over the world for 20 years.

Daikin screw compressor, besides being well-known for efficiency, offers great reliability. In contrast to a standard screw compressor, it uses one main screw meshing with twin star rotors to produce volume matching compression cycle. Due to the main rotor, which is balanced in both radial and axial directions, the compressor bearing has extremely high reliability. Therefore, its lifespan can be longer than other screw compressors. The single screw compressor has only three moving parts, which reduces the possibility of failure and keeps operation costs low.

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