Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system
First Claim
1. A monitoring system for monitoring an evaporator in a refrigerant-cycle system, comprising:
- a first temperature sensor configured to measure input air temperature to an evaporator;
a second temperature sensor configured to measure output air temperature from said evaporator;
one or more ambient sensors configured to measure one or more ambient conditions;
a sensor to sense when air is flowing through said evaporator; and
a processing system configured to calculate a performance criteria of said evaporator using at least a portion of the data from said first temperature sensor and said second temperature sensor.
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Abstract
A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or more sensors and uses the sensor data to calculate a figure of merit related to the efficiency of the system. In one embodiment, the sensors include one or more of the following sensors: a suction line temperature sensor, a suction line pressure sensor, a suction line flow sensor, a hot gas line temperature sensor, a hot gas line pressure sensor, a hot gas line flow sensor, a liquid line temperature sensor, a liquid line pressure sensor, a liquid line flow sensor. In one embodiment, the sensors include one or more of an evaporator air temperature input sensor, an evaporator air temperature output sensor, an evaporator air flow sensor, an evaporator air humidity sensor, and a differential pressure sensor. In one embodiment, the sensors include one or more of a condenser air temperature input sensor, a condenser air temperature output sensor, and a condenser air flow sensor, an evaporator air humidity sensor. In one embodiment, the sensors include one or more of an ambient air sensor and an ambient humidity sensor.
141 Citations
39 Claims
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1. A monitoring system for monitoring an evaporator in a refrigerant-cycle system, comprising:
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a first temperature sensor configured to measure input air temperature to an evaporator;
a second temperature sensor configured to measure output air temperature from said evaporator;
one or more ambient sensors configured to measure one or more ambient conditions;
a sensor to sense when air is flowing through said evaporator; and
a processing system configured to calculate a performance criteria of said evaporator using at least a portion of the data from said first temperature sensor and said second temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A monitoring system for monitoring an evaporator in a refrigerant-cycle system, comprising:
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means for measuring one or more inputs to said evaporator;
means for measuring one or more outputs from said evaporator;
programmed data parameters related to operation of said evaporator; and
a processing system configured to calculate one or more performance criteria of said evaporator using at least a portion of the data from said means for measuring one or more inputs, said means for measuring one or more outputs, and said programmed data parameters, said processing system configured to provide a performance history of said performance criteria and to calculate an operational efficiency of said evaporator using in part said performance criteria. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification