Refrigeration – Processes – Assembling – charging – or repairing of refrigeration producer
Patent
1990-10-31
1991-12-31
Makay, Albert J.
Refrigeration
Processes
Assembling, charging, or repairing of refrigeration producer
62292, 62114, F25B 4500
Patent
active
050760645
ABSTRACT:
A method for substituting a replacement refrigerant for an existing refrigerant in a centrifugal compressor includes the steps of selecting a desired impeller Mach number for the centrifugal compressor, selecting a base refrigerant constituent, combining at least one additive refrigerant constituent with the base refrigerant constituent to form a replacement refrigerant having at least one physical or chemical property different from the existing refrigerant and substantially providing the desired impeller Mach number in the centrifugal compressor, and replacing the existing refrigerant with the replacement refrigerant. The existing refrigerant can be replaced by choosing a particular molecular weight or acoustical velocity which will provide the desired impeller Mach number.
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Makay Albert J.
Sollecito John
York International Corporation
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