REFRIGERATION SYSTEM OPERATION

• US 20180017300A1
• Filed: 07/15/2016
• Published: 01/18/2018
• Est. Priority Date: 07/15/2016
• Status: Abandoned Application

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Shockley, Nicholas, Pishnery, Anthony
• Application Number:
  US15/211,713
• Publication Number:
  US 20180017300A1
• Time in Patent Office: Days
• CPC Class Codes: F25B 2339/047 Water-cooled condensers
• CPC Class Codes: F25B 2700/151 of the compressor motor
• CPC Class Codes: F25B 2700/1933 Suction pressures
• CPC Class Codes: F25B 2700/195 of the condenser
• CPC Class Codes: F25B 2700/21151 at the suction side of the compressor
• CPC Class Codes: F25B 41/39 Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
• CPC Class Codes: F25B 49/02 for compression type machines, plants or systems
• CPC Class Codes: F25D 21/006 with electronic control circuits
• CPC Class Codes: F25D 21/008 by timer

Abstract

Devices and systems for refrigeration system operation are described herein. One or more embodiments include a controller having logic to receive inputs from a temperature sensor over a period of time, the inputs indicating determined temperatures in a refrigeration system over the period of time, compare each of the determined temperatures to control limits, sort the determined temperatures into a plurality of categories based on a relationship between the determined temperatures and the control limits, and cause a user interface to display the sorted determined temperatures.

Claims

1. A controller for refrigeration system operation having logic to:

receive inputs from a temperature sensor over a period of time, the inputs indicating determined temperatures in a refrigeration system over the period of time;

compare each of the determined temperatures to control limits;

sort the determined temperatures into a plurality of categories based on a relationship between the determined temperatures and the control limits; and

cause a user interface to display the sorted determined temperatures.

2. The controller of claim 1, wherein the period of time is a duration of a refrigeration mode associated with the refrigeration system.

3. The controller of claim 1, wherein the determined temperatures are ambient air temperatures in an area refrigerated by the refrigeration system.

4. The controller of claim 1, wherein the determined temperatures are superheat temperatures.

5. The controller of claim 1, wherein the determined temperatures are evaporator coil temperatures.

6. The controller of claim 1, wherein the control limits are target operating parameters, including target operating temperatures of the refrigeration system.

7. The controller of claim 1, wherein the plurality of categories includes:

a first category including determined temperatures below a lower control limit;

a second category including determined temperatures within the control limits; and

a third category including determined temperatures above an upper control limit.

8. The controller of claim 7, wherein the controller includes logic to cause the user interface to display a respective proportion of the determined temperatures sorted into the first, second, and third categories.

9. The controller of claim 7, wherein the controller includes logic to:

receive additional inputs from the temperature sensor during a plurality of defrost cycles of the refrigeration system, the additional inputs indicating determined temperatures in the refrigeration system during the defrost cycles;

determine, based on the second set of inputs, defrost mode operating information, wherein the defrost mode operating information includes;

a particular determined temperature that exceeds a threshold for each of the plurality of defrost cycles;

a proportion of the plurality of defrost cycles in which a termination temperature was reached; and

a respective temperature determined after a particular period of time following a respective completion of each defrost cycle.

10. The controller of claim 9, wherein the controller includes logic to:

cause the user interface to display the first, second, and third categories in a first, second, and third column, respectively; and

cause the user interface to;

display the particular determined temperature that exceeds the threshold for each of the plurality of defrost cycles in a fourth column;

display the proportion of the plurality of defrost cycles in which the termination temperature was reached in a fifth column; and

display the respective temperature determined after the particular period of time following the respective completions of the defrost cycles in a sixth column.

11. A non-transitory computer-readable medium having instructions stored thereon which, when executed by a processor, cause the processor to:

receive a first set of inputs from a temperature sensor associated with a refrigeration system during a plurality of refrigeration cycles, the first set of inputs indicating determined temperatures in the refrigeration system during a refrigeration mode of the refrigeration system;

sort the determined temperatures into a plurality of categories based on a relationship between the determined temperatures and control limits;

receive a second set of inputs from the temperature sensor during a plurality of defrost cycles, the second set of inputs indicating determined temperatures in the refrigeration system during a defrost mode of the refrigeration system;

determine, based on the second set of inputs, defrost mode operating information; and

provide a report via a user interface that includes the sorted determined temperatures during the refrigeration mode and the defrost mode operating information.

12. The medium of claim 11, wherein the defrost mode operating information includes a particular determined temperature that exceeds a threshold for each of the plurality of defrost cycles.

13. The medium of claim 11, wherein the defrost mode operating information includes a proportion of the plurality of defrost cycles in which a termination temperature was reached.

14. The medium of claim 11, wherein the defrost mode operating information includes a respective temperature determined after a particular period of time following a respective completion of each defrost cycle.

15. The medium of claim 11, further comprising instructions to generate the report in real-time as the first set of inputs and the second set of inputs are received.

16. A system for refrigeration system operation, comprising:

a plurality of sensors, each associated with a different component of an operating refrigeration system;

a computing device having a memory and a processor configured to execute instructions stored on the memory to;

receive inputs indicating determined values from each of the plurality of sensors over a plurality of refrigeration cycles of the refrigeration system;

sort the determined values into a plurality of categories based on relationships between the determined temperatures and a plurality of sets of control limits, wherein each set of control limits is associated with a respective component of the operating refrigeration system; and

take an action to modify an operation of at least one of the components of the refrigeration system responsive to at least one of the relationships exceeding a particular threshold.

17. The system of claim 16, wherein the plurality of sensors includes a plurality of temperature sensors, each associated with a different component of the refrigeration system.

18. The system of claim 16, wherein the plurality of sensors includes a plurality of pressure sensors, each associated with a different component of the refrigeration system.

19. The system of claim 16, wherein the system includes a user interface, and wherein the instructions to take the action include instructions to provide a notification via the user interface

20. The system of claim 16, wherein the instructions to take the action include instructions to modify a power level of at least one of the components of the refrigeration system.