title: Ð£ÑÐ¾ÑÐ½ÐµÐ½Ð¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° Ð¿ÑÐ¸ Ð¿ÑÐ¾ÐºÐ»Ð°Ð´ÐºÐµ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸ Ð² Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ ÑÑÑÐ±Ð°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Refinement of the heat transfer of the power cable installed in a buried plastic pipe
Creators: name: Ð¤Ð°ÑÐ¸Ð½, ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð¿Ð¾Ð´Ð·ÐµÐ¼Ð½Ð°Ñ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ
Ð¿ÑÐ¾ÐºÐ»Ð°Ð´ÐºÐ° Ð² Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½ÑÑ ÑÑÑÐ±Ð°Ñ
ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½ÑÐ¹ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½
ÑÐºÐ²Ð¸Ð²Ð°Ð»ÐµÐ½ÑÐ½Ð°Ñ ÑÐµÐ¿Ð»Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÑ
comsol multyphisics
underground cable power line
cabel in polymer tube
convective heat tansfer
equivalent thermal conductivity
comsol multiphysics

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ ÑÑÐ»Ð¾Ð²Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° ÐºÐ°Ð±ÐµÐ»Ñ, Ð¿ÑÐ¾Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð² Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½Ð¾Ð¹ ÑÑÑÐ±Ðµ, Ñ ÑÑÐµÑÐ¾Ð¼ ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¸ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ð¾Ð² ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð°. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¾ÑÐµÐ½ÐºÐ° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐµÑÐ¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ ÐºÑÐ¸ÑÐµÑÐ¸ÐµÐ², Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½Ð¾ Ð²ÑÐ±ÑÐ°Ð½Ñ Ð´Ð¾Ð¿ÑÑÐµÐ½Ð¸Ñ Ð¸ ÑÐ¿ÑÐ¾ÑÐµÐ½Ð¸Ñ Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¾ Ð¿Ð¾Ð»Ð½Ð¾Ðµ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ñ ÑÐ¾Ð²Ð¼ÐµÑÑÐ½ÑÐ¼ ÑÐµÑÐµÐ½Ð¸Ðµ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¹ ÑÐµÐ¿Ð»Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸, Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð³Ð°Ð·Ð° Ð¸ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð°. ÐÐ½Ð°Ð»Ð¾Ð³Ð¸ÑÐ½ÑÐ¹ ÑÐ°ÑÑÐµÑ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½ Ð´Ð»Ñ ÑÐ¿ÑÐ¾ÑÐµÐ½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸, Ð² ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¸ ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½ÑÐ¹ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½ Ð·Ð°Ð¼ÐµÐ½ÐµÐ½ ÑÐºÐ²Ð¸Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÐ¼ ÐºÐ¾Ð½Ð´ÑÐºÑÐ¸Ð²Ð½ÑÐ¼ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð¾Ð¼. 
ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ñ ÑÐ°ÑÑÐµÑÐ¾Ð¼ Ð¿Ð¾ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐµ ÐÐÐ¡Ð¢ Ð  ÐÐ­Ð 60287. ÐÑÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð²ÑÐ±Ð¾ÑÑ ÑÐµÐ¿Ð»Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ ÑÐºÐ²Ð¸Ð²Ð°Ð»ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð¼ÐµÐ¶ÑÑÐºÐ° Ð´Ð»Ñ Ð¸ÑÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð¹ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ Ð¸ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° Ð¸Ð· Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸.
description: The contribution is investigation of heat transfer of underground power cable mounted in a polymer tube. The convective and radiation heat transfer was taken into account. The investigation started with simplified criteria-based analysis. That provides information needed for choosing appropriate assumption and simplification for the coupled heat transfer and fluid dynamics formulation. The latest formulation was used for calculation of cable thermal state of in a wide range of tube diameters. The same analysis also performed against simplified FEA-model, where the convective and radiation heat transfer was replaced with equivalent conductive heat transfer.
FEA simulation results were compared with engineering analysis based on IEC 60287 standard. Recommendations given for choosing equivalent thermal conductivity of air gap between the tube and the cable. This allows to exclude fluid dynamic equation from the cycle of engineering FEA analysis of complex underground cable installation.