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THE INFLUENCE OF AIR FLOW RATES AND ELECTRICAL CURRENTS ON HEAT TRANSFER THROUGH METAL FOAM POROUS MEDIA | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 8, 2011, Pages 0-0 | ||
| Author | ||
| Salman H. Abbas | ||
| Abstract | ||
| This study represents a model of radial heating element made from a combined of (Fe- Cr –Al) metals in porous, low density briquette foam in an air heater. The heating action occurred by converting the electrical energy into thermal energy and this is done by using electrical closed circuit includes the foam material as electrical resistance. The practical work includes a set of experiments using two types of metal foams different in porosities and same density. Experiments are conducted to evaluate the effects of air flow rates and electrical currents on the outlet temperature. The experimental results show significant changes in outlet temperature, and show reasonably good agreement with theoretical considerations | ||
| Keywords | ||
| Metal foam; porous media; electrical heater | ||
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