HFC-134a conversion of large tonnage, multi-stage centrifugal chillers: Lessons learned
- Trigen-Nassau Energy Corp., Garden City, NY (United States)
- Centrifugal Services Inc., New York, NY (United States)
On December 31, 1995, worldwide production of CFC refrigerants will come to a complete and permanent stop. Trigen-Nassau has effected a comprehensive CFC program, including refrigerant containment and the first refrigerant conversion in a plant of this type. Trigen-Nassau initiated its containment program prior to July 1, 1992, the effective date of the no venting law. The course of action included scheduled leak checking of all machines and prompt repair of leaks. Centrifugal Services, an independent service contractor performed these repairs. In 1994, Trigen contacted Centrifugal to perform a refrigerant conversion on a multi-stage, centrifugal chiller, with a nominal capacity of 2500 tons at the Central Utilities Plant. The machine is a York OM open drive, steam turbine driven machine, designed for R-500. The machine is now running with HFC-134a (Dupont Suva MP-Cold). This successful conversion was performed without modification to the steam turbine or the compressor impeller. The conversion is now complete, and the machine has been reliably producing 2450 tons of chilling.
- OSTI ID:
- 272717
- Report Number(s):
- CONF-9510169--
- Country of Publication:
- United States
- Language:
- English
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