PEMODELAN MATEMATIKA LAJU ALIRAN PANAS PADA WAJAN PEMBUATAN ARANG AKTIF-13 DENGAN MENGGUNAKAN METODE BEDA HINGGA (FINITE DIFFERENCE METHOD)

Abstract

In this paper we propose the theory of finite difference methode for calculating heat transfer onrectangular tin pan alloy which the center temperature is 7000c and the ambien temperature is 300 c. The aimin this paper we used this method for calculating of heat transfer on the pan in order to process of makingactivated charcoal especially called “arang aktif-13”. We design a furnace which is the heat resources in thecenter only then choosing 9 points rectangularly on the plate pan that it will be calculated the value oftemperature and the velocity of temperature on these points. By assumption the temperature at the center ofthe pan on the furnice is consistence or stable, then we do the process of defried of row material coconut shelluntil cooked as activated charcoal. We consider choosing 9 points in order tobe caculated as manually easielyand therefore can be comparing with using software lindo, and also for more points grather than 9 wesuggested using masine more efficient. The spreading of the heat on the plate pan when the moment achievethe condition of the temperature araund the pan stable, then it can be animated by using software matlab. Bydoing depried of row material, that process will need 13 minutes to become activated charcoal