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SR27 Transferência de Calor e Massa |
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Titulo:
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ANALYSIS AND PRE-CALCULATION OF A PCM THERMAL STORAGE SYSTEM
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Resumo :
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ABSTRACT. A PHASE CHANGE THERMAL STORAGE SYSTEM OF THE VERTICAL TUBE TYPE IS STUDIED USING A FIXED GRID NUMERICAL MODEL. THE SOLUTION OF THE SYSTEM CONSISTS OF ADOPTING A VELOCITY FIELD OF A COMPLETE DEVELOPED FLOW COUPLED WITH THE ENERGY EQUATIONS OF THE HEAT TRANSFER FLUID (HTF), THE PIPE WALL AND THE PHASE CHANGE MATERIAL (PCM). THE CONTROL VOLUME FINITE DIFFERENCE APPROACH DESCRIBED BY (PATANKAR, 1980) IS USED TO SOLVE THE EQUATIONS DESCRIBING THE PHASE CHANGE THERMAL STORAGE SYSTEM. THE RADIAL TEMPERATURE DISTRIBUTION, THE PHASE CHANGE INTERFACE POSITION AND THE LATENT AND SENSIBLE HEAT ACCUMULATED ALONG THE SYSTEM AXIAL LENGTH ARE SHOWN. IT IS ALSO SHOWN IN THIS WORK A PROCEDURE FOR THERMAL PERFORMANCE PREDICTION OF A PCM THERMAL STORAGE SYSTEM.
KEY WORDS: PHASE CHANGE MATERIAL, THERMAL PERFORMANCE, SOLIDIFICATION FRONT
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Autores :
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Abugderah, Mabruk M.
Ismail, Kamal A. R.
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Trabalho Completo :
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