Special Issue "Opportunities and Challenges in the Thermal Management of Modern Data Centers"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Thermal Management".

Deadline for manuscript submissions: 31 May 2020.

Special Issue Editors

Prof. Dr. Bahgat G Sammakia
E-Mail Website
Guest Editor
Binghamton University State University of New York, Binghamton, United States
Interests: Heat Transfer; Electronics Packaging; Thermal Management of Data Centers
Dr. Scott N Schiffres
E-Mail Website
Guest Editor
Binghamton University State University of New York, Binghamton, United States
Interests: Nanoscale and microscale energy transport; thermal properties of nanomaterials; thermal processes of additive manufacturing; sustainability engineering

Special Issue Information

Special Issue Editorial Board

Srikanth Rangarajan                    [email protected]

Bharath Ramakrishnan                 [email protected]

Mohammad I Tradat                     [email protected]

Dear Colleagues,

Data centers house different mission-critical electronic equipment, which is typically organized in racks to process and store data. Modern data centers equipped for data storage, high-performance computing, telecommunication, and video streaming services consume a tremendous amount of electricity for safe, secure, and reliable operations. Global data center electricity usage has increased from approximately 152 billion kW h/year in 2005 to 238 billion kW h/year in 2010 (roughly 1.3% of global electricity use). In a typical data center, about one-third of the total electricity is allocated to the thermal management of electronics. Thus, thermal management is a growing concern for commercial and public sector data center organizations. With the miniaturization of microelectronic components and with a tendency towards growing component density, air cooling becomes less energy efficient and often demands bigger heat sinks with bigger fans at the chassis level. Consequently, substantial efforts and progress have been made to research and develop advanced forced air cooling methods and alternative liquid cooling solutions such as cold plates in an attempt to mitigate rack level heat greater than 25kW. Several scholarly works, both experimental and numerical, have been published in recent years dealing with thermal management challenges within modern data center racks.

This Special Issue aims to quantitatively examine and compare the performance of traditional and state of the art cooling technologies with potential application in the thermal management of data centers. Technologies could include forced air cooling, free cooling, evaporative cooling, single and two-phase indirect liquid cooling, immersion cooling, spray cooling, heat pipes, jet impingement, or embedded cooling. The influence of various technologies on the reliability of server electronics and their impact on the total energy consumption in data centers based on the geometric location, data center size, and type are expected to be addressed.

Researchers and individual contributors are cordially invited to publish their findings in this Special Issue of "Opportunities and Challenges in the Thermal Management of Modern Data Centers".

Prof. Dr. Bahgat G Sammakia
Dr. Scott N Schiffres
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • data center
  • thermal management
  • high-density racks
  • high-performance racks
  • forced-air cooling
  • warm-water cooling
  • single-phase cooling
  • two-phase cooling
  • microchannel cooling
  • embedded cooling
  • immersion cooling
  • free cooling
  • evaporative cooling.

Published Papers (1 paper)

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Research

Open AccessArticle
Thermal Performance and Energy Saving Analysis of Indoor Air–Water Heat Exchanger Based on Micro Heat Pipe Array for Data Center
Energies 2020, 13(2), 393; https://doi.org/10.3390/en13020393 (registering DOI) - 13 Jan 2020
Abstract
According to the temperature regulations and high energy consumption of air conditioning (AC) system in data centers (DCs), natural cold energy becomes the focus of energy saving in data center in winter and transition season. A new type of air–water heat exchanger (AWHE) [...] Read more.
According to the temperature regulations and high energy consumption of air conditioning (AC) system in data centers (DCs), natural cold energy becomes the focus of energy saving in data center in winter and transition season. A new type of air–water heat exchanger (AWHE) for the indoor side of DCs was designed to use natural cold energy in order to reduce the power consumption of AC. The AWHE applied micro-heat pipe arrays (MHPAs) with serrated fins on its surface to enhance heat transfer. The performance of MHPA-AWHE for different inlet water temperatures, water and air flow rates was investigated, respectively. The results showed that the maximum efficiency of the heat exchanger was 81.4% by using the effectiveness number of transfer units (ε-NTU) method. When the max air flow rate was 3000 m3/h and the water inlet temperature was 5 °C, the maximum heat transfer rate was 9.29 kW. The maximum pressure drop of the air side and water side were 339.8 Pa and 8.86 kPa, respectively. The comprehensive evaluation index j/f1/2 of the MHPA-AWHE increased by 10.8% compared to the plate–fin heat exchanger with louvered fins. The energy saving characteristics of an example DCs in Beijing was analyzed, and when the air flow rate was 2500 m3/h and the number of MHPA-AWHE modules was five, the minimum payback period of the MHPA-AWHE system was 2.3 years, which was the shortest and the most economical recorded. The maximum comprehensive energy efficiency ratio (EER) of the system after the transformation was 21.8, the electric power reduced by 28.3% compared to the system before the transformation, and the control strategy was carried out. The comprehensive performance provides a reference for MHPA-AWHE application in data centers. Full article
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