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Are we dealing with Energy in Telecom Infrastructure with passionate zeal?
July 25, 2011, 4:14 am
Robert Kjelldorff,
President, Purcell Systems International
I guess not. It is a fact that the ICT and Telecom networks can consume up to 10% of the country’s energy and in warm countries the cooling systems can use as much energy as the electronics itself!!
Traditional wireless telecom sites were built with shelter in which the active telecom equipment was placed and cooled using air conditioners, often with a back-up unit -should primary fail. Modern electronics can withstand higher temperatures up to 50-60 degrees C. The only part most sensitive to high temperatures is the battery bank which should be kept at 25-29 degrees to preserve its life and reliability. The consequence has been that the operators in many cases cool the complete site to meet the battery temperature requirement and consume an enormous amount of energy to do that. Using new technology utilizing smart cooling systems we have an opportunity not only to save energy (which is a scarce resource) and go green but also Save costs for the operators for enhanced profitability while Improving network reliability and provide excellent customer service.
The way to do it is to enhance the existing telecom shelters and create different temperature zones for batteries and the rest of the equipment. The equipment zone must be created by installing free cooling systems which consumes much less energy than the active cooling systems but can keep the equipment at ambient temperature plus a few degrees. As a safety measure the Active cooling systems can be set at a higher temperature setting of about 35C.
Recent measurements have demonstrated that this strategy will be able to save more than 50% of the energy consumed for cooling enabling the operators to have a short payback of the shelter enhancement equipment.
We must deal with Energy with a Passionate zeal!
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