Refrigeration system having a self adjusting control range

REFRIGERATION SYSTEM HAVING A SELF ADJUSTING CONTROL RANGE A closed loop vapor compression refrigeration system wherein the control range of a control parameter for controlling the flow of the refrigerant through the evaporator coil is automatically adjusted as the operating conditions change is dis...

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Bibliographic Details
Main Author RICHARD H ALSENZ
Format Patent
LanguageEnglish
Published 08.12.1994
Edition5
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
REGULATING
WEAPONS
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Summary:REFRIGERATION SYSTEM HAVING A SELF ADJUSTING CONTROL RANGE A closed loop vapor compression refrigeration system wherein the control range of a control parameter for controlling the flow of the refrigerant through the evaporator coil is automatically adjusted as the operating conditions change is disclosed. A control parameter for controlling the refrigerant flow through the evaporator and a dynamic control range for the control parameter are defined. The control range is made a function of certain system parameters. A nonlinear flow control response function associated with the control parameter is selected. During operation, the control range is automatically adjusted as the values of the selected system parameters change. The flow through a flow control device, such as an expansion valve, coupled to the evaporator, is adjusted according to the flow control response function as the value of the control parameter changes.
Bibliography:Application Number: AU19940064539