US 12,302,537 B2
Methods and systems for prioritizing maintenance of cooling units of a data center
Jayaprakash Meruva, Bangalore (IN); Madhav V Kamath, Bengaluru (IN); Magesh Lingan, Bangalore (IN); and Srikanth Nagaraj, Bangalore (IN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on May 17, 2022, as Appl. No. 17/746,670.
Prior Publication US 2023/0380115 A1, Nov. 23, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20836 (2013.01) [H05K 7/20745 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of identifying one or more cooling units of a plurality of cooling units servicing a data center that has a reduced relative performance level relative to other of the plurality of cooling units, the method comprising:
monitoring a performance level of each of the plurality of cooling units, wherein the performance level of each of the plurality of cooling units is defined at least in part by one or more performance level parameters including one or more of:
an airflow parameter representative of an airflow through an air filter of the respective cooling unit;
a temperature drop parameter representative of a temperature drop across a cooling coil of the respective cooling unit;
a pressure, temperature and/or flow rate parameter of a cooling fluid of the respective cooling unit;
a fan speed parameter representative to a fan speed of a fan of the respective cooling unit;
an electrical power draw parameters representative of a power draw of the respective cooling unit;
for each of the plurality of cooling units:
identifying one or more of the plurality of cooling units as one or more neighboring cooling units to the respective cooling unit, wherein the one or more neighboring cooling units include less than all of the remaining ones of the plurality of cooling units of the data center, wherein the one or more neighboring cooling units include one or more of:
cooling units of the plurality of cooling units that have a predefined physical proximity to the respective cooling unit in the data center;
cooling units of the plurality of cooling units that service a common zone of the data center as the respective cooling unit; and
cooling units that have an average heat load that is within a predefined heat load range of the respective cooling unit;
comparing degradation in the performance level of the respective cooling unit to the degradation in the performance level of each of the one or more neighboring cooling units by comparing one or more of the performance level parameters of the respective cooling unit to respective performance level parameters of each of the one or more neighboring cooling units;
determining that the respective cooling unit has a reduced relative performance level relative to the performance level of the neighboring cooling units when the degradation in performance level of the respective cooling unit falls below the degradation in performance level of one or more of the neighboring cooling units by at least a threshold amount; and
in response to determining that at least one of the respective cooling units has a reduced relative performance level, correcting the at least one of the respective cooling units that has a reduced relative performance level before performing periodic maintenance on a cooling unit of the plurality of cooling units that does not have a reduced relative performance level.