Browse Prior Art Database

Central Air Cooling System

IP.com Disclosure Number: IPCOM000074995D
Original Publication Date: 1971-Jul-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Kay, RC: AUTHOR [+2]

Abstract

Walls 10 form part of a closed column centrally located within an equipment enclosure. A lower wheel driven by motor 12 operates in the plenum created by the closed column to introduce air at a relatively high velocity and static head into the plenum. Air is thereafter ducted from the plenum to various parts of the machine that require cooling.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 84% of the total text.

Page 1 of 2

Central Air Cooling System

Walls 10 form part of a closed column centrally located within an equipment enclosure. A lower wheel driven by motor 12 operates in the plenum created by the closed column to introduce air at a relatively high velocity and static head into the plenum. Air is thereafter ducted from the plenum to various parts of the machine that require cooling.

To accommodate components requiring large volumes of cooling air, such as gates and power supplies, bleed points 13 are strategically located around the wheel-periphery, as shown in FIG. 2, to take maximum advantage of the induced velocity head and provide the path of least aerodynamic resistance to the component. Scroll sections 14 are integrated into the design around the wheel periphery to optimize output from wheel 11, in accordance with the needs of the device. An extended plenum area 15 above wheel 11 is provided to provide a static pressure source. This static pressure source can be tapped at various bleed points 16 to provide cooling for components requiring lower volumes of air. The location of the bleed points and the amount of air escaping from the static pressure portion of the plenum is critical. By controlling static pressure in the plenum, it is possible to control the flow performance of the wheel to achieve an optimum condition.

The central forced air system is ideal for the incorporation of an air chiller or heat exchanger and recirculation of air to provide a system that is ind...