Reduced-scale model study on cable heat dissipation and airflow distribution of power cabins

J. Wang, Xuefeng Liu, S. Chen, Hanghang Jiang, Guanyu Fang, Wenjing Chen, Shiming Deng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


The current work study the heat dissipation characteristics and airflow distribution in a power cabin. By simplifying the cable structure, a 1:5 reduced-scale model was constructed based on the Archimedes number. Computational fluid dynamics (CFD) simulations were applied to the prototype power cabin. The 3D steady-state Reynolds average Navier-Stokes (RANS) equation is used to solve the ventilation flow, where the turbulence model is realizable k–ε. The CFD simulation of the prototype has been verified by the reduced-scale model. On this basis, several conclusions were drawn. The airflow distribution in the power cabin and cable arrangement cause a difference in the temperature distribution between the cables. The strong turbulence at the air inlet causes a significant temperature drop. The mechanical fan can effectively cool the cable to a certain extent, but cable temperature control should take into account the effects of ampacity and ventilation, as well as cable location.

Original languageEnglish
Article number114068
JournalApplied Thermal Engineering
Publication statusPublished - Sept 2019


  • Airflow field
  • Cable
  • Computational fluid dynamics
  • Heat dissipation
  • Power cabin
  • Reduced-scale model

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering


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