Christopher J Healey

US Patent:

8205508, Jun 26, 2012

Filed:

Jan 12, 2010

Appl. No.:

12/686004

Inventors:

Christopher J Healey - Manchester NH, US

Assignee:

Meggitt (New Hampshire), Inc. - Londenderry NH

International Classification:

G01F 1/80
G01F 15/00

US Classification:

73861352, 7386177

Abstract:

A motorless mass flowmeter in accordance with one embodiment of the invention comprises a turbine subassembly, a drum, and an impeller. The drum is rigidly connected to the turbine subassembly such that the drum rotates in accompaniment to rotation of the turbine subassembly. The impeller is rotationally coupled to the drum by way of a spring that allows relative rotation against the bias of the spring. The turbine subassembly has jets and bypass valves. The turbine subassembly may be implemented in the form of a laminated bypass valve structure. The laminated bypass valve structure may include an entrance layer having entrance port(s), a closure layer having closure member(s), an exit layer defining exit passage(s), and an intermediary layer forming conduit(s) for guiding fluid from entrance port(s) to exit passage(s).

US Patent:

20100256959, Oct 7, 2010

Filed:

Apr 1, 2009

Appl. No.:

12/416567

Inventors:

James W. VanGilder - Pepperell MA, US
Christopher M. Healey - Atlanta GA, US

Assignee:

American Power Conversion Corporation - West Kingston RI

International Classification:

G06F 17/10

US Classification:

703 6

Abstract:

A system and method for designing aspects of a cooling system for a data center is provided. A method is provided including computing cooling redundancy at each rack position in a data center, in real time. The redundancy can be reported using the traditional N+1, N+2, etc. notation, where N is the number of coolers required to meet the primary cooling load type specification. The redundancy can also be reported in terms of a Cooling Reliability Index (CRI) which also takes into account the inherent availability of the specific cooling units in the design.

US Patent:

20110301911, Dec 8, 2011

Filed:

Jun 8, 2010

Appl. No.:

12/795862

Inventors:

James W. VanGilder - Pepperell MA, US
Xuanhang Zhang - Tewksbury MA, US
Christopher M. Healey - Chelmsford MA, US

Assignee:

American Power Conversion Corporation - West Kingston RI

International Classification:

G01K 17/00

US Classification:

702136

Abstract:

A system and method for evaluating equipment in a data center, the equipment including a plurality of equipment racks, and at least one cooling provider. In one aspect, a method includes receiving data regarding each of the plurality of equipment racks and the at least one cooling provider, the data including a layout of the equipment racks and the at least one cooling provider, and a power draw value for each of the equipment racks, storing the received data, determining air flow between the at least one cooling provider and each of the equipment racks, determining inlet and exit air temperature for the at least one cooling provider based on the layout, the power draw and the airflow, for each equipment rack, determining inlet and exit air temperature based on the layout, the power draw and the airflow, and displaying an indication of the inlet and exit temperature for each of the plurality of equipment racks and the at least one cooler. In the method, determining the inlet and exit temperature of each of the equipment racks and the at least one cooling provider includes establishing a set of S coupled equations, with S equal to a number of temperature values to be determined, and solving the S coupled equations.

US Patent:

20120158375, Jun 21, 2012

Filed:

Dec 21, 2010

Appl. No.:

12/974719

Inventors:

Christopher M. Healey - Chelmsford MA, US

Assignee:

AMERICAN POWER CONVERSION CORPORATION - West Kingston RI

International Classification:

G06F 17/10
G06F 1/20

US Classification:

703 2

Abstract:

A system and method for designing aspects of a cooling system for a data center is provided. A method is provided including computing cooling redundancy at each rack position in a data center, in real time. The redundancy can be reported using the traditional N+1, N+2, etc. notation, where N is the number of coolers required to meet the primary cooling load type specification. The method substantially reduces the computational complexity of computing cooling redundancy.

US Patent:

20120170205, Jul 5, 2012

Filed:

Dec 30, 2010

Appl. No.:

12/982838

Inventors:

Christopher M. Healey - Chelmsford MA, US
Xuanhang Zhang - Tewksbury MA, US

Assignee:

AMERICAN POWER CONVERSION CORPORATION - West Kingston RI

International Classification:

H05K 7/20

US Classification:

36167946

Abstract:

A computer-implemented method for sequential placement of cooling resources in a data center comprises: defining a weighted, higher-order cooling metric, , representing an overall performance of the cooling resources in the data center; enumerating all possible locations in the data center for placing an additional c cooling resources; and placing the c cooling resources in locations in the data center for which is closest to an optimum value. For a performance metric M, the weighted, higher-order cooling performance metric can be defined aswhere R represents a number of racks in the data center, C represents a total number of cooling resources placed in the data center, i represents one of the R racks in the data center, Mrepresents a value of metric Mwhen k cooling resources are shut down, and a(i,k) is a weighting function for rack i with the k cooling resources shut down. A system performing the method and computer-readable media having stored thereon instructions causing a processor to perform the method are also provided.

US Patent:

20120245905, Sep 27, 2012

Filed:

Jul 29, 2011

Appl. No.:

13/194570

Inventors:

Mikkel Dalgas - Sjoelund, DK
James W. VanGilder - Pepperell MA, US
Christopher Healey - Chelmsford MA, US
Martin Johansen - Vejle, DK

International Classification:

G06F 17/10

US Classification:

703 2

Abstract:

A system and method for predicting airflow within a data center using a potential flow technique is provided. In one aspect, a method includes automatically generating an unstructured grid, the unstructured grid comprising a plurality of unstructured grid cells, each unstructured grid cell having a size, dividing a representation of the data center into the plurality of unstructured grid cells, determining airflow velocity values for each of the plurality of unstructured grid cells using airflow velocity potentials, determining a temperature value for each one of the plurality of the unstructured grid cells using the airflow velocity values, determining a concentration value for each of the plurality of the unstructured grid cells using the airflow velocity values, and calculating a comparison result indicating whether the concentration values, the airflow velocity values and the temperature values for the plurality of the unstructured grid cells satisfy convergence criteria.

US Patent:

20130006426, Jan 3, 2013

Filed:

Jun 28, 2011

Appl. No.:

13/171152

Inventors:

Christopher Healey - Chelmsford MA, US
Xuanhang Zhang - Tewksbury MA, US
James W. VanGilder - Pepperell MA, US

International Classification:

G05D 23/19
G06G 7/57
G06G 7/56

US Classification:

700278, 703 9

Abstract:

A system and method for evaluating cooling performance of equipment in a data center, the equipment including a plurality of equipment racks and at least one cooling provider. In one aspect, a method includes receiving a plurality of measured inlet and exhaust air temperature values for the at least one cooling provider and a subset of the plurality of equipment racks, implementing a cooling model, the model including an ambient air temperature value, a plurality of inlet and exhaust air temperature values for the plurality of equipment racks and the at least one cooling provider, and a plurality of airflow values for the plurality of equipment racks and the at least one cooling provider, adjusting at least one of the ambient air temperature value and each of the plurality of airflow values in the cooling model, adjusting the cooling model to compensate for the adjusted at least one of the ambient air temperature value and each of the plurality of airflow values in the cooling model, substituting a first subset of the plurality of inlet and exhaust air temperature values in the cooling model with the plurality of measured inlet and exhaust air temperature values, and predicting a second subset of the plurality of inlet and exhaust air temperature values for the plurality of equipment racks and the at least one cooling provider in the cooling model.

US Patent:

20200257838, Aug 13, 2020

Filed:

Dec 15, 2017

Appl. No.:

16/469832

Inventors:

- West Kingston RI, US
Zachary M. Pardey - Waltham MA, US
Christopher M. Healey - Tewksbury MA, US

International Classification:

G06F 30/28

Abstract:

Systems and methods for a compact wall model are provided. According to one aspect, embodiments herein provide a method that comprises receiving input data related to an enclosure, the input data including solar intensity data on an exterior of a wall of the enclosure, generating, by a processor, a thermal model of a wall of the enclosure based at least in part on the input data, the wall modeled as having a plurality of layers and the thermal model including a plurality of nodes such that each layer of the plurality of layers is associated with at least one node of the plurality of nodes and each node of the plurality of nodes is thermally coupled to an adjacent node by a thermal resistance, solving, by the processor, an energy balance equation for the at least one node to determine a predicted temperature for the at least one node, and output the predicted temperature to a display device.