Numerical Simulation of Solar Radiation and Conjugate Heat Transfer through Cabin Seat Textile

• Autorzy: Zhang, Yijie , Jia, Juhong
• Języki publikacji: EN

Abstrakty

EN

The solar radiation and the conjugate heat transfer through the cabin seat fabric were investigated numerically with a focus on a comparative analysis of various fabric solar reflectance or reflectivity (SR) and inlet cooling air velocity. For this purpose, 3D compressible Reynolds-averaged Navier–Stokes equations with the low Reynolds number turbulence model were utilized to simulate the airflow in the cabin. The discrete ordinate radiation model was adopted to describe the solar radiation. The conjugate heat transfer between the airflow and the fabric seats was included. The airflow temperature, radiative heat flux, and radiative heat transfer through the fabrics in a fixed cross section were studied. The results demonstrate that the increase in fabric SR leads to the increase in energy reflected to the atmosphere, which will bring about a lower temperature on the seat fabric. The decrease in emissivity and the energy absorbed results in the lower heat transfer and heat radiation and leads to the improvement of the cabin thermal environment. The high-temperature gradient near the seat causes the forced air circulation and is beneficial for the improvement of the thermal comfort. However, the cooling effect is not so obvious near the cabin seats when the inflow speed is increased.

Słowa kluczowe

PL

tekstylia kabinowe; środowisko termiczne; promieniowanie słoneczne; wymiana ciepła; symulacja numeryczna

EN

cabin textile; thermal environment; solar radiation; heat transfer; numerical simulation

• Czasopismo: Autex Research Journal
• Rocznik: 2021
• Tom: Vol. 21, no. 4
• Strony: 501--507
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Zhang, Yijie

• School of Fashion Design and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
• Shangyu College, Shaoxing University, Shaoxing, Zhejiang 312300, China

autor

Jia, Juhong

• School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China,

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).

Identyfikatory

DOI

10.2478/aut-2020-0034