Guest Bio
Mustafa Yanik is the director of global solutions at Danfoss Climate Solutions. He has bachelor’s and master’s degrees in mechanical engineering with over 20 years of experience in HVAC.
Episode Summary
Host Vic Marinich is joined by Mustafa Yanik, director of global solutions at Danfoss Climate Solutions, to discuss trends in chiller design.
Main Points
- There are multiple types of chillers: water-cooled, which reject the heat to condenser water and then ultimately to the air via a condenser pump and cooling tower, and air-cooled, which reject heat directly to the air. Chillers also vary in the compressors they use: screw, scroll or centrifugal. They can be used exclusively for cooling or can be reversible and perform heating and cooling functions. (1:45)
- Air-cooled chillers are becoming more popular than water-cooled chillers due to increased interest in conserving water. (4:15)
- Refrigerant transition has resulted in changes in chiller design. The long-term trend is toward natural refrigerants in chillers. (6:30)
- Previously, most chillers operated at full speed; now, most chillers are operating at part-load capacity. Integrated Part-Load Value (IPLV) has become the industry standard to measure the efficiency of chillers. (8:15)
- With increased cooling demands from data centers and other large commercial buildings, the focus in chiller design is on large capacity, high efficiency, air-cooled chillers. With data centers, reliability is very important. (11:00)
- High efficiency chillers can help data centers decrease their Power Usage Effectiveness (PUE). (15:00)
- While many current chillers are designed for free cooling in data centers, in the future there will be more use of liquid cooling as innovations in chip technology and electronics result in data centers operating at higher water temperatures. (18:00)
Links
Read how one customer used Danfoss components to build a CO2 chiller: https://www.danfoss.com/en-us/service-and-support/case-stories/dcs/co2-chillers-give-pro-refrigeration-a-future-proof-solution/
Resources on refrigerant transition: https://www.ahrinet.org/advocacy/safe-refrigerant-transition
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