Bir şalter sistemi için termal analiz

Abstract

Elektrik enerjisinin dağıtımı önemlidir. Özellikle güç iletim şebekelerinin yönetimi sırasında, birçok kritik sistem devreye girer ve önemli fonksiyonları yerine getirir. Bunlardan en önemlilerinden biri, anahtarlamalı mod olarak bilinen yüksek gerilim altında anahtarlama işlemidir. Bir şalter sisteminin (switchgear mekanizması) işlevini yerine getirirken karşılaştığı problemlerden biri de ısı birikmesidir. Termal sorunlara yol açabilecek bu problemlerden dolayı sınırlı hacim ve özel koşullar altında termal tasarımı inceleyerek tasarım hacmini incelemek zorunludur. Bu kapalı hacimde, bu elemanlar tarafından üretilen sıcaklık değerleri belirli noktalarda deneysel olarak ölçülmüş ve daha sonra bu değerler 3B sonlu hacim tabanlı CFD değerleri ile karşılaştırılmıştır. Bu karşılaştırma, tasarımın sıcaklık görünümü açısından CFD analiz değerlerine dayanabileceğini göstermektedir. Bu, maliyet minimizasyonu ve optimal sistem tasarımı yaklaşımı için değerli bir katkıdır.

Keywords

• CFD analizi,taşınım ısı transferi,endüstriyel tasarım,şalter sistemi

A thermal analysis for a switchgear system

Abstract

Distribution of electrical energy is important. Particularly during the management of power transmission networks, many critical systems enter the circuit and perform important functions. One of the most important of these is the high-voltage switching process, known as switch-mode operation. One of the problems that switching mechanism meets when performing its function is heat accumulation. It is imperative to examine the thermal design and consider design considerations under limited volume and special conditions. In this closed volume, the temperature values produced by these elements were experimentally measured at certain points and then these values were compared with the 3D finite volume based CFD determined values. This comparison demonstrates that the design could be based on CFD analysis values in terms of temperature appearance. This is a valuable contribution for cost minimization and optimal system design approach.

Keywords

• CFD analysis,convection heat transfer,industrial design,switchgear

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