Abstract
Numerical study on the cooling characteristics of the air supply and return flow systems in the telecommunication cabinet room was investigated to develop the new flow system. Three numerical test models called 'horizontal air supply and return flow system model', 'underfloor air supply and overhead return flow system model', and 'overhead air supply and underfloor return flow system model' were set up; where, 'horizontal air supply and return flow system' is conventional flow system, 'underfloor air supply and overhead return flow system' and 'overhead air supply and underfloor return flow system are the new flow system available to the domestic telecommunication cabinet room. As a result, it was found that cooling performances of the new flow system supplying the cooling air directly in the telecommunication cabinet were improved much better than that of the conventional flow system. Cooling performances of underfloor air supply and overhead return flow system was best among three flow systems.
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