Ducted Exhaust Cabinet ~
Managing Exhaust Airflow
Beyond Hot Aisle/Cold Aisle
Rack-mount computer and data storage equipment generates heat during normal operation. When equipment
is enclosed in cabinets, heat generated by the equipment can concentrate within the cabinet and cause
equipment to overheat and shut down.
Contemporary thinking in data center thermal management promotes a Hot Aisle / Cold Aisle approach to
segregate cold air in front of rows of equipment cabinets and hot exhaust air behind these rows of cabinets.
This approach works well in low to medium density data center applications. Unfortunately, though, the Hot
Aisle / Cold Aisle approach does not perform well in many medium density applications and can not begin to
support high density applications without extreme discipline and additional air flow management devices
outside of the cabinets to prevent hot exhaust recirculation into the cold aisle.
Chatsworth Products, Inc.
Supporting Cisco Switches
In Hot Aisle/Cold Aisle
Data Centers
The installation of Cisco switches inside equipment cabinets in the data center is a growing trend. Critical to
supporting this trend is the need to address the right-to-left airflow pattern of Cisco 6500 and 9500 switches.
Specific steps must be taken to prevent internal re-circulation and the hot exhaust from one switch raising the
intake temperature of an adjacent switch. It is also highly desirable to place this equipment in a hot aisle/cold
aisle layout without disrupting the data center’s planned airflow pattern. These and other issues are
addressed.
Chatsworth Products, Inc.
Cooligy Active Micro-Structure Liquid Cooling System for Gamer PC Applications
Recent technical advances in graphics processing units have accelerated the proliferation of high power GPUs and multiple GPUs in high-end gamer PC applications. Characterized by very high heat loads, this application is causing increasing numbers of OEMs to investigate alternative methods, such as liquid cooling, to achieve the level of thermal management needed for dramatically higher system power levels. Typical gamer PC platforms employ a dual-card configuration to support the operational requirements of extreme graphics computing. In this application, the power required by the GPU often exceeds that of the CPU itself, a trend that processor roadmaps predict will continue for the foreseeable future.
Cooligy, a Division of Emerson Network Power
The Thermal Management Imperative in Avionics and Defense Electronics
The days of testing thermal performance with duct tape and cardboard mockups are winding down. Modern electronic systems cannot be handled on the back of an envelope, and the required pace of innovation is just too fast. The most successful avionics and defense electronics companies are making thermal management expertise part of their DNA. New technologies like upfront CFD software are making it possible for today’s multi-tasking engineers to effectively deliver thermal management expertise early in the design process long before physical prototyping and testing.
CFdesign, a Division of Blue Ridge Numerics, Inc.
|
