ShareMeasuring the performance of a variable-speed drive retrofit on a fixed-speed centrifugal chiller.
Author(s) : LENARDUZZI F. J., YAP S. S.
Summary
Variable-speed drives (VSDs) offer many advantages in a heating, ventilating, and air-conditioning (HVAC) system. However, they are seldom used with centrifugal chiller systems. One of the reasons for the low number of VSDs in chiller systems is unfamiliarity with these systems. This research project was initiated to establish a base of accurate and detailed information for building owners and HVAC consultants to realize the benefits of VSDs. A 200 hp variable-speed drive was retrofitted to a 615-kilowatt centrifugal chiller and monitored for one cooling season. Results show that VSD operated without problems during the test period and successfully met the air-conditioning requirements of the building. Energy savings are estimated to be approximately 41% at this particular site. The power quality effects also were studied and do not appear to be a concern. The total harmonic distortion is less than 2.5%.
Details
- Original title: Measuring the performance of a variable-speed drive retrofit on a fixed-speed centrifugal chiller.
- Record ID : 1999-3786
- Languages: English
- Source: ASHRAE Transactions. 1998 annual Meeting, Toronto, Ontario + CD-ROM.
- Publication date: 1998
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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MODELS FOR VARIABLE-SPEED CENTRIFUGAL CHILLERS.
- Author(s) : BRAUN J. E., MITCHELL J. W., KLEIN S. A.
- Date : 1987
- Languages : English
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Performance of variable speed centrifugal chill...
- Author(s) : MULUGETA J., DIETRICH W.
- Date : 1996/07/23
- Languages : English
- Source: Proceedings of the 1996 International Compressor Engineering Conference at Purdue.
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Steady state operational optimization of a vari...
- Author(s) : ZHAO L., ZAHEER-UDDIN M.
- Date : 2006/05/21
- Languages : English
- Source: ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
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A comparative study between a constant-speed ai...
- Author(s) : CHEN I. Y., CHEN Y. M., CHANG Y. J., et al.
- Date : 2009/01/25
- Languages : English
- Source: ASHRAE Transactions. Papers presented at the 2009 ASHRAE Winter Conference: Chicago, Illinois, January 2009. Volume 115, part 1.
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Development of room air conditioners with R410A.
- Author(s) : NAKAMURA Y., HIRANO K., YAMANASHI Y., et al.
- Date : 2000/12/07
- Languages : Japanese
- Source: The International Symposium on HCFC Alternative Refrigerants and Environmental Technology 2000: Latest technology for Energy Conservation, Refrigerants and Recycling on Air-Conditioning and Refrigeration Equipment for the 21st century. Proceedings.
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