By Jun Dai, Michael M. Ohadi, Visit Amazon's Diganta Das Page, search results, Learn about Author Central, Diganta Das, , Michael G. Pecht
This booklet describes using unfastened air cooling to enhance the potency of, and cooling of, gear to be used in telecom infrastructures. mentioned at size is the cooling of verbal exchange deploy rooms corresponding to information facilities or base stations, and this can be meant as a beneficial device for the folk designing and production key elements of communique networks. This e-book presents an advent to present cooling tools used for power relief, and likewise compares current cooling tools in use within the box. The qualification equipment and conventional reliability exams are reviewed, and their lack of ability to evaluate the dangers of unfastened air cooling is mentioned. the tactic of choosing the hazards linked to unfastened air cooling on apparatus functionality and reliability is brought. a singular approach to overview at no cost air cooling can also be proposed that makes use of prognostics and future health administration (PHM).
This booklet additionally:
Describes how the implementation of loose air cooling can keep power for cooling in the telecommunications infrastructure.
Analyzes the capability hazards and screw ups of mechanisms attainable within the implementation of loose air cooling, which advantages brands and kit designers.
Presents prognostics-based checks to spot and mitigate the dangers of telecommunications apparatus below loose air cooling stipulations, that can give you the early caution of kit disasters at operation level with no stressful the knowledge facilities' service.
Optimum Cooling for info facilities is a terrific publication for researchers and engineers attracted to designing and production gear to be used in telecom infrastructures.
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Extra resources for Optimum Cooling of Data Centers: Application of Risk Assessment and Mitigation Techniques
Ton, B. Fortenbery, W. D. G. Miner, Reducing Data Center Cost with an Air Economizer, IT@Intel Brief, Computer Manufacturing, Energy Efficiency; Intel Information Technology (Aug 2008) 11. K. T. Lu, X. Lu, M. Remes, M. Viljanen, Investigation of air management and energy performance in a data center in Finland: Case study. Energy Build. S. E. Lee, Case study of data centers’ energy performance. Energy Build. J. S. Kim, Evaluation of air management system’s thermal performance for superior cooling efficiency in high-density data centers.
It recommends the use of adequate cooling equipment, as well as a raised floor system for flexible cooling. In addition, the standard suggests that cabinets and racks should be arranged in alternating patterns to create “hot” and “cold” aisles to keep the hot air from mingling with the cold air. 3 Environmental Qualification Standards Environmental qualification standards are used to assess the quality of telecom equipment at the point of manufacturing. In this section, we describe two widely used environmental qualification standards for telecom equipment: Telcordia GR63-CORE  for the North American market and ETSI 300 019  for the European market.
To calculate the normalized 1-year return rate, returns are aggregated for product normalized units (NUs), which are based on product categories and are defined in the TL 9000 measurement applicability table in the appendix. The numbers of NUs are calculated based on how many NUs can be deployed by the shipped parts. 2), and S is the number of normalized units (NUs) shipped during the 1-year return rate basis shipping period. For example, a high bit-rate digital subscriber line (HDSL) transmission system consists of an HDSL central office transceiver unit (HTU-C) and an HDSL remote transceiver unit (HTU-R).