Abstract
In the field of data communication, broadband services that make use of high speed bi-directional data flow are expanding and the trend in IT equipment such as large-capacity routers and blade servers is toward higher density and greater heat generation. This creates various problems concerning the air conditioning of the data centers in which this high-heat-generating equipment is installed. We developed the "Data Center Air Conditioning System" with the objectives of reducing power consumption and eliminating local regions of high temperature in data center. It is based on four techniques: 1) design methods of raised-floor panels which have various vent hole sizes, 2) air flow design methods, such as volume of air flow in the vicinity of high heat generating equipment, 3) development of a task air conditioner and its design method and 4) development of a high-efficiency ambient air conditioner. Application of this system makes it possible to provide a good room temperature environment while reducing the air conditioning operating power by 50%.
