Patents by Inventor Ratnesh K. Sharma
Ratnesh K. Sharma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7010392Abstract: A method for controlling one or more computer room air conditioning (CRAC) units for energy efficient operation, in which, the temperature of the air returned (Trat) into the one or more CRAC units and the temperature of the air supplied (Tsat) by the one or more CRAC units is detected. The caloric heat transfer level (Q) is calculated based upon the Trat and the Tsat and it is determined whether the Q is within a predetermined setpoint caloric heat transfer range. In addition, at least one operation of the one or more CRAC units is reduced in response to the Q being within the predetermined setpoint caloric heat transfer range to thereby increase the efficiencies of the one or more CRAC units.Type: GrantFiled: May 26, 2004Date of Patent: March 7, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Ratnesh K. Sharma, Abdlmonem Beitelmal
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Patent number: 7003966Abstract: A method of reducing energy consumption in a multi-effect absorption system. The multi-effect absorption system includes a primary generator for a primary desorption process and a secondary generator for a secondary desorption process. In the method, heat is provided to the primary generator from a primary heat source for the primary desorption process. Heat generating devices are cooled with the multi-effect absorption system while the generated heat is collected and transferred to the to the secondary generator for use in the secondary desorption process thereby reducing the amount of heat required from the primary heat source and reducing the energy consumption of the absorption system.Type: GrantFiled: December 19, 2003Date of Patent: February 28, 2006Assignee: Hewlett Packard Development Company, L.P.Inventors: Ratnesh K. Sharma, Cullen E. Bash, Chandrakant D. Patel, Cyril Brignone
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Patent number: 6945058Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: May 14, 2004Date of Patent: September 20, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6868683Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: March 22, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6868682Abstract: Controlling the temperature in a data center includes receiving sensory data corresponding to a temperature from a subsystem in a data center, processing the sensory data by a first agent in a hierarchy of agents to determine if the subsystems in the data center is operating within a predetermined temperature range, adjusting a delivery rate for a cooling fluid using the first agent to keep the temperature range of the subsystem within the predetermined temperature range, and requesting a second agent from the hierarchy of agents to process the sensory data when the first agent cannot keep the temperature range within the predetermined temperature range unless the second agent redistributes the cooling fluid being delivered. A third agent is used to vary the amount of cooling fluid output when at least the first and second agent cannot keep the subsystem operating within the predetermined temperature range.Type: GrantFiled: January 16, 2003Date of Patent: March 22, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ratnesh K. Sharma, Cullen E. Bash, Chandrakant D. Patel
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Patent number: 6854284Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: February 15, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6834512Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: December 28, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdimonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6832490Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: December 21, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6832489Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: December 21, 2004Assignee: Hewlett-Packard Development Company, LPInventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Publication number: 20040240514Abstract: identify the level of heated air re-circulation into cooling fluid delivered to the one or more racks. The one or more racks comprise inlets and outlets and are positioned along a cool aisle and a hot aisle. The index is calculated by dividing the enthalpy rise due to infiltration of heated air into the cool aisle and the total enthalpy rise of the heated air from the outlets of the one or more racks.Type: ApplicationFiled: May 29, 2003Publication date: December 2, 2004Inventors: Cullen Edwin Bash, Ratnesh K. Sharma, Chandrakant D. Patel
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Publication number: 20040218355Abstract: A rack has a frame for supporting one or more electronic components. The frame includes a front side and a rear side. An angled panel is positioned on at least one of the front side and the rear side.Type: ApplicationFiled: April 30, 2003Publication date: November 4, 2004Inventors: Cullen Edwin Bash, Martin Fraser Arlitt, Ratnesh K. Sharma
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Publication number: 20040217072Abstract: A rack has a frame for supporting one or more electronic components. A front panel and a rear panel are attached to the frame. At least one of the front panel and the rear panel comprises a vent having at least one movable louver configured to vary airflow through the vent.Type: ApplicationFiled: April 30, 2003Publication date: November 4, 2004Inventors: Cullen Edwin Bash, Ratnesh K. Sharma
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Publication number: 20040206101Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: ApplicationFiled: May 14, 2004Publication date: October 21, 2004Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6775997Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 3, 2002Date of Patent: August 17, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Patent number: 6772604Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: GrantFiled: October 31, 2003Date of Patent: August 10, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Publication number: 20040141542Abstract: Controlling the temperature in a data center includes receiving sensory data corresponding to a temperature from a subsystem in a data center, processing the sensory data by a first agent in a hierarchy of agents to determine if the subsystems in the data center is operating within a predetermined temperature range, adjusting a delivery rate for a cooling fluid using the first agent to keep the temperature range of the subsystem within the predetermined temperature range, and requesting a second agent from the hierarchy of agents to process the sensory data when the first agent cannot keep the temperature range within the predetermined temperature range unless the second agent redistributes the cooling fluid being delivered. A third agent is used to vary the amount of cooling fluid output when at least the first and second agent cannot keep the subsystem operating within the predetermined temperature range.Type: ApplicationFiled: January 16, 2003Publication date: July 22, 2004Inventors: Ratnesh K. Sharma, Cullen E. Bash, Chandrakant D. Patel
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Publication number: 20040089009Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: ApplicationFiled: October 31, 2003Publication date: May 13, 2004Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Publication number: 20040075984Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: ApplicationFiled: October 31, 2003Publication date: April 22, 2004Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Publication number: 20040074249Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: ApplicationFiled: October 31, 2003Publication date: April 22, 2004Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma
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Publication number: 20040065106Abstract: In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid communication with the fan and the plurality of returns are configured for removing the cooling fluid from the data center. Furthermore, the returns and are operable to vary a characteristic of the removal of the cooling fluid.Type: ApplicationFiled: October 31, 2003Publication date: April 8, 2004Inventors: Cullen E. Bash, Chandrakant D. Patel, Abdlmonem H. Beitelmal, Ratnesh K. Sharma