By: Clemens J.M. Lasance; Guest Editor The answer to the question stated in the title is both! It all depends on whether or not your situation is truly similar to the situation described in the book (physically congruent, fluid mechanically and thermally similar). Very few heat transfer books provide detailed dimensions and flow conditions for the experimentally observed … [Read more...]
Data Center Energy Savings: Total Liquid Cooling Versus Indirect Liquid Cooling
By: Yong Quiang Chi, Peter Hopton and Keith Deakin, Iceotope Ltd Jonathan Summers, Alan Real, Nik Kapur and Harvey Thompson, University of Leeds Introduction Improvements in energy efficiency and performance of data centers are possible when liquid is supplied to the racks [1]. A solution which has become popular for dense racks is the rear-door water-cooled heat … [Read more...]
Comparison of HPC and Telecom Data Center Cooling Methods by Operating and Capital Expense
By: Dr. Alexander Yatskov; Thermal Form & Function Inc. Introduction Current high-performance computing (HPC) and Telecom trends have shown that the number of transistors per chip has continued to grow in recent years, and data center cabinets have already surpassed 30 kW per cabinet (or 40.4 kW/m2) [1]. It is not an unreasonable assumption to expect that, in accordance … [Read more...]
A Simple Method to Understand Trade-Offs in Data Center Cooling
Cooling and thermal management are critical to data center reliability. Many organizations see cooling as a differentiating factor in the lifecycle cost of their data center. Recent industry guidelines [1] for data center cooling have suggested energy savings in air-cooled data centers by increasing the temperature of the cooling air. This increase enables two trends: reduced … [Read more...]
Application of Low Melt Alloys as Compliant Thermal Interface Materials: A Study of Performance and Degradation under Thermal Duress
By: Chandan K. Roy1, Sushil Bhavnani1, Michael C. Hamilton2, R. Wayne Johnson3, Roy W. Knight1, & Daniel K. Harris1 1 Department of Mechanical Engineering, Auburn University, Auburn, AL 2 Department of Electrical and Computer Engineering, Auburn University, Auburn, AL 3Department of Electrical and Computer Engineering, Tennessee Tech University, Cookeville, … [Read more...]
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