Method for determining performance of an intermittently used refrigerator using a performance measuring device

A performance measuring device for determining performance of an intermittently used refrigerator, the performance measuring device comprising:

• a processor;
• and
• a memory communicatively coupled to the processor, wherein the memory stores the processor-executable instructions, which, on execution, causes the processor to:
• receive time stamped temperature data corresponding to the intermittently used refrigerator;
• determine values for each of one or more predefined parameters associated with the intermittently used refrigerator based on the time stamped temperature data, wherein the one or more predefined parameters are fire up time response time, settling temperature, food storage compliance temperature and temperature settling time;
• determine temperature variation of the intermittently used refrigerator based on the time stamped temperature data to identify additional service windows in a site comprising the intermittently used refrigerator, wherein periods of temperature variation correspond to the service windows during which a door of the refrigerator is opened and closed;
• determine the performance of the intermittently used refrigerator by analyzing the temperature variation and the determined values of each of the one or more predefined parameters;
• identify a time interval when additional service windows are low in the site to reduce energy consumption of the intermittently used refrigerator during the identified time interval;
• wherein reducing energy consumption of the intermittently used refrigerator during the identified time interval comprises adjusting a set point of the intermittently used refrigerator.

A non-transitory computer readable medium including instructions stored thereon that when processed by at least one processor causes a performance measuring device to perform operations comprising:

• receiving time stamped temperature data corresponding to the intermittently used refrigerator;
• determining values for each of one or more predefined parameters associated with the intermittently used refrigerator based on the time stamped temperature data, wherein the one or more predefined parameters are fire up time response time, settling temperature, food storage compliance temperature and temperature settling time;
• determining temperature variation of the intermittently used refrigerator based on the time stamped temperature data to identify additional service windows in a site comprising the intermittently used refrigerator, wherein periods of temperature variation correspond to the service windows during which a door of the refrigerator is opened and closed;
• determining the performance of the intermittently used refrigerator by analysing the temperature variation and the determined values of each of the one or more predefined parameters;
• identifying, by the performance measuring device, a time interval when the additional service windows are low in the site to reduce energy consumption of the intermittently used refrigerator during the identified time interval;
• wherein reducing energy consumption of the intermittently used refrigerator during the identified time interval comprises adjusting a set point of the intermittently used refrigerator.