Power electronics devices such as MOSFETs, GTOs, IGBTs, IGCTs etc. are now widely used to efficiently deliver electrical power in home electronics, industrial drives, telecommunication, transport, electric grid and numerous other applications. This paper discusses cooling technologies that have evolved in step to remove increasing levels of heat dissipation and manage junction … [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...]
Liquid Immersion in the Data Center: A Modular Approach for Cooling High-Performance Microelectronics
Introduction While data enter energy consumption is already significant, the growth of a global cloud-based economy along with society’s need for constant social networking connectivity will cause this number to rise even further. The world’s Information-Communications-Technologies (ICT) infrastructure, a general representation of cloud-based computing, is estimated to … [Read more...]
Thermal Packaging – From Problem Solver to Performance Multiplier
The increased integration density of electronic components and subsystems, including the nascent commercialization of 3D chip stack technology, has exacerbated the thermal management challenges facing electronic system developers. The sequential conductive and interfacial thermal resistances associated with the prevailing “remote cooling” paradigm in which heat must diffuse … [Read more...]
Two-Phase Flow Control of On-Chip Two-Phase Cooling Systems Developed for Blade Servers of Data Centers
Server manufacturers and data center managers are showing a greater concern regarding the energy efficiency and cooling of the new generation of servers for data centers. With very large data centers exceeding 100 000 servers, some even consuming more than 50 MW [1] to operate, this electrical energy is directly converted to heat and then simply “wasted” as it is dissipated … [Read more...]