NUMERICAL INVESTIGATION OF THE EFFECT OF SOLAR IRRADIATION ON THE SKIN TEMPERATURE AND TISSUE DAMAGE

Yıl 2016, Cilt: 57 Sayı: 682, 34 - 41, 19.12.2016

Serhan Küçüka , İlkay Özanlağan Can Özgür Çolpan

Öz

The solar irradiation reaching to the skin surface is absorbed at the upper layers of the tissue; whereas
there is heat transfer from the surface of the tissue to the environment through perspiration, conduction
and radiation. In this study, in order to investigate the change of temperature at the upper and lower
layers of the skin, a mathematical model is developed and the numerical solution is done using a
commercially available software namely COMSOL Multiphysics. On the basis of the temperature
distribution found, the tissue damage ratio is calculated according to the Arrhenius approach. The
results of a case study in which this model is applied show that the temperature of the tissue reaches
up to 321 K at the dermis layer under the effect of solar irradiation and thermal damage is formed in
the skin tissue.

Anahtar Kelimeler

Bio-heat, skin temperature, effect of solar irradiation on skin temperature, skin tissue damage

GÜNEŞ IŞINIMININ DERİ SICAKLIĞINA VE DOKU HASARINA ETKİSİNİN SAYISAL İNCELENMESİ

Öz

Deri yüzeyine gelen güneş ışınımı doku üst tabakalarında emilmekte, buna karşılık doku yüzeyinden
çevreye terleme, taşınım ve ışınım ile ısı kaybı olmaktadır. Bu çalışmada, deri üst yüzeyi ve alt katmanlarındaki sıcaklığın belirtilen etkiler altındaki değişiminin incelenebilmesi için matematiksel bir
model geliştirilmiş ve modelin sayısal çözümlemesi ticari bir yazılım olan COMSOL Multiphysics
kullanılarak gerçekleştirilmiştir. Elde edilen sıcaklık dağılımı esas alınarak dokudaki hasar oranı Arrhenius yaklaşımına göre hesaplanmış. Bir durum çalışmasına uygulanan bu modelin sonuçları, güneş
ışınımı etkisi altında doku sıcaklığının dermis katmanında 321 K’e kadar ulaştığını ve deri dokusunda
sıcaklığa bağlı hasar oluştuğunu göstermektedir.

Anahtar Kelimeler

Biyo-ısı, deri sıcaklığı, güneş ışınımının deri sıcaklığına etkisi, deri dokusu hasarı

Kaynakça

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