INVESTIGATION OF TRANSIENT COOLING OF AN AUTOMOBILE CABIN WITH A VIRTUAL MANIKIN UNDER SOLAR RADIATION


Sevilgen G., Kılıç M.

THERMAL SCIENCE, cilt.17, ss.397-406, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17
  • Basım Tarihi: 2013
  • Doi Numarası: 10.2298/tsci120623150s
  • Dergi Adı: THERMAL SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.397-406
  • Anahtar Kelimeler: computational fluid dynamics, automobile cabin, transient cooling, solar radiation, IMPROVING THERMAL COMFORT, AIR-FLOW, HEAT-TRANSFER, NUMERICAL-ANALYSIS, PASSENGER COMPARTMENT, TEMPERATURE-FIELDS, MOISTURE TRANSPORT
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The aim of the paper is to present a three dimensional transient cooling analysis of an automobile cabin with a virtual manikin under solar radiation. In the numerical simulations the velocity and the temperature distributions in the automobile cabin as well as around the human body surfaces were computed during transient cooling period. The surface-to-surface radiation model was used for calculations of radiation heat transfer between the interior surfaces of the automobile cabin and a solar load model that can be used to calculate radiation effects from the Sun's rays that enter from the glazing surfaces of the cabin was used for solar radiation effects. Inhomogeneous air flow and non-uniform temperature distributions were obtained in the automobile cabin and, especially in ten minutes of cooling period, high temperature gradients were computed and measured and high temperature values were obtained for the surfaces which were more affected from the sunlight. Validations of the numerical results were performed by comparing numerical data with the experimental data presented in this study. It is shown that the numerical results were in good agreement with the experimental data.