Modeling Convective Cooling Applied to Perfused and Non Perfused Layers Using Thermal Measurements "With and Without Thermal Capacitance Effects"
| المصدر: | مجلة العلوم الإنسانية والتطبيقية |
|---|---|
| الناشر: | الجامعة الأسمرية الإسلامية زليتن - كليتى الآداب والعلوم |
| المؤلف الرئيسي: | Al Khwaji, Abd Alsalam (Author) |
| المجلد/العدد: | ع28 |
| محكمة: | نعم |
| الدولة: |
ليبيا |
| التاريخ الميلادي: |
2016
|
| الشهر: | يونيو |
| الصفحات: | 135 - 157 |
| رقم MD: | 829446 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | الإنجليزية |
| قواعد المعلومات: | HumanIndex |
| مواضيع: | |
| كلمات المؤلف المفتاحية: |
Thermal Measurements | Modeling Thermal System | Thermal Capacitance Effect
|
| رابط المحتوى: |
عدد مرات التحميل
1
| المستخلص: |
Thermal measurements are collection of data which are either heat flux or temperature data. Thermal measurements have been used in detecting distribution of heat transfer through the boundary of a thermal system; as an example, the case of modeling burn depth, or skin cancer, etc., where damaged tissue suffers dysfunction perfusion process. Damaged tissue causes blood perfusion either to increase (inflammation process) or decease (burns). In this study, an investigation was carried out to develop an optimal modeling method to simulate heat transfer through a compartment of non-perfused and perfused layers. The first model was one-Layer compartment (thermal resistance model), in which the effect of thermal capacitance of the non-perfused layer was not counted for. The second model was two layer compartment (perfused and non-perfused layers), in which the effect of thermal capacitance of non-perfused layer was included. For the one-layer compartment model, a numerical solution was developed based on finite difference method to describe heat transfer through a perfused layer. This one-layer compartment finite difference solution has perfusion effect and without thermal capacitance effect. The non-perfused layer was represented in the one-layer FD-solution explicitly as thermal resistance. For the two-layer compartment model, another finite difference solution was used to describe the two layers along with the thermal capacitance effect. The results of this investigation demonstrate that by modeling with thermal resistance of a non-perfused layer, the complexity in handling two-layers is going to be reduced, and the estimated parameters of both models was close. |
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