Journal Press India^®

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Computer simulation of porous Trombe wall has been carried out for providing comfortable thermal environment. During sunshine hours excess heat is stored within the porous absorber and there is stratification in the porous layer. For two different porous materials viz. marble and quartzite, explicit expressions for heat flux and thermal efficiency of the porous system have been developed. The experimental results have been validated with numerical computations using the developed model. It has been observed that Trombe wall contributes 20% to 30% of the total heating of the buildings depending upon type of material. The average thermal efficiency of the wall has been found to be 29.09% for brick wall, 37.27% for concrete wall, 45.35% for marble wall and 57.2% for quartzite wall respectively.. The results from presented mathematical model would help the designers of passive solar systems to use this model for selecting optimal constructive parameters of the non-porous Trombe wall.

Keywords

Thermal Performance Passive Systems; Porous Walls; Non Porous Walls; Trombe Walls

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