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http://dx.doi.org/10.5370/KIEEP.2014.63.2.107

A Study on the Temperature Characteristics Analysis in Tunnel using Loss Factor  

Lee, Sang-Keun (강릉원주대학교 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.63, no.2, 2014 , pp. 107-112 More about this Journal
Abstract
To cope with the ever increasing electric power demands in metropolitan areas, a greater underground cable transmission capacity is required. In general, it must be determined whether the temperature in the tunnel maintains the maximum allowable temperature. In order to improve this point, it is used to the loss factor. But, for economic cooling, it is problem to use such loss factor in this country. In this study, based on the load factor in this country, technique for calculating the loss factor has been presents. The suggested method has been tested in a sample section using the computer and the results have shown the usefullness of the suggested method.
Keywords
Loss factor; Load factor; Forced cooling; Thermal resistance; Cable temperature;
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