| Abstrakt: |
Several investigations have been conducted to remove excess heat from system components to minimize overheating damage by increasing the heat transfer surface area. Extended surfaces or fins with different geometries are used to improve heat transfer in many industries. Choosing a suitable arrangement of the fins to improve the heat transfer is the primary task of the designer. Much research done on plate fin as well as perforated fins and limited tests done on wire mesh heat sink due to cost and time constraints. This paper uses a modified Taguchi technique on existing test data of a wire mesh fin heat sink by selecting optimal design parameters for improving the heat transfer coefficient. Wire mesh diameter (1, 1.2, and 1.6 mm), fin height (40, 45, and 50 mm), and spacing between two fin arrays (16.5, 21.5, and 30.5 mm) are the 3 design parameters while generating the output response viz., the average heat transfer coefficient of different heat inputs (40, 60, 80, 100 and 120 W). The Taguchi's L9 OA (orthogonal array) is chosen, and data is generated from a small number of experiments, for each design parameter that has three levels allocated to it. The maximum heat transfer coefficient of 20.55 W/m2 K was achieved with the optimal design parameters of a wire mesh diameter of 1 mm, a fin height of 50 mm, and spacing between two fins of 16.5 mm. The range of the heat transfer coefficient for the determined set of design parameters is from 20.467 to 20.683 W/m2 K. The test data is within that range. [ABSTRACT FROM AUTHOR] |
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