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Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios./
Author:	Chowdhury, Uschas.
Description:	1 online resource (39 pages)
Notes:	Source: Masters Abstracts International, Volume: 57-02.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355414455

Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios.
Chowdhury, Uschas.

Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios. - 1 online resource (39 pages)

Source: Masters Abstracts International, Volume: 57-02.

Thesis (M.S.M.E.)--The University of Texas at Arlington, 2017.

Includes bibliographical references

Modern day data centers are operated at high power for increased power density, maintenance, and cooling which covers almost 2 percent (70 billion kilowatt-hours) of the total energy consumption in the US. IT components and cooling system occupy the major portion of this energy consumption. Although data centers are designed to perform efficiently, cooling the high-density components is still a challenge. So, alternative methods to improve the cooling efficiency has become the drive to reduce the cooling cost. As liquid cooling is more efficient for high specific heat capacity, density, and thermal conductivity, hybrid cooling can offer the advantage of liquid cooling of high heat generating components in the traditional air-cooled servers. In this experiment, a 1U server is equipped with cold plate to cool the CPUs while the rest of the components are cooled by fans. In this study, predictive fan and pump failure analysis are performed which also helps to explore the options for redundancy and to reduce the cooling cost by improving cooling efficiency. The ASHRAE guidance class W4 for liquid cooling is chosen for experiment to operate in a range from 25°C - 45°C. The experiments are conducted separately for the pump and fan failure scenarios. Computational loads are applied while powering only one pump and the miniature dry cooler fans are controlled externally to maintain constant inlet temperature of the coolant. As the rest of components such as DIMMs & PCH are cooled by air, maximum utilization for memory is applied while reducing the number fans in each case for fan failure scenario. The components temperatures and power consumption are recorded in each case for performance analysis.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355414455Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios.
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245 1 0 $a Thermal Characterization of an Isolated Hybrid Cooled Server with Pump and Fan Failure Scenarios.
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500 $a Source: Masters Abstracts International, Volume: 57-02.
500 $a Adviser: Dereje Agonafer.
502 $a Thesis (M.S.M.E.)--The University of Texas at Arlington, 2017.
504 $a Includes bibliographical references
520 $a Modern day data centers are operated at high power for increased power density, maintenance, and cooling which covers almost 2 percent (70 billion kilowatt-hours) of the total energy consumption in the US. IT components and cooling system occupy the major portion of this energy consumption. Although data centers are designed to perform efficiently, cooling the high-density components is still a challenge. So, alternative methods to improve the cooling efficiency has become the drive to reduce the cooling cost. As liquid cooling is more efficient for high specific heat capacity, density, and thermal conductivity, hybrid cooling can offer the advantage of liquid cooling of high heat generating components in the traditional air-cooled servers. In this experiment, a 1U server is equipped with cold plate to cool the CPUs while the rest of the components are cooled by fans. In this study, predictive fan and pump failure analysis are performed which also helps to explore the options for redundancy and to reduce the cooling cost by improving cooling efficiency. The ASHRAE guidance class W4 for liquid cooling is chosen for experiment to operate in a range from 25°C - 45°C. The experiments are conducted separately for the pump and fan failure scenarios. Computational loads are applied while powering only one pump and the miniature dry cooler fans are controlled externally to maintain constant inlet temperature of the coolant. As the rest of components such as DIMMs & PCH are cooled by air, maximum utilization for memory is applied while reducing the number fans in each case for fan failure scenario. The components temperatures and power consumption are recorded in each case for performance analysis.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a The University of Texas at Arlington. $b Mechanical and Aerospace Engineering. $3 1148619
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10692962 $z click for full text (PQDT)