In this article, the comparison of energy performance between a classical and an improved Trombe ... more In this article, the comparison of energy performance between a classical and an improved Trombe wall of a model test room has been carried out experimentally. The case study is conducted in Borj Cedria, Tunisia, where there is always heating requirements. Here, we propose an improved Trombe wall whose absorber wall is covered with a thin black copper panel backed rather than simply painted black wall. The proposed idea would offer improved thermal performance, especially in natural convection. The comparison shows that the improved Trombe wall design gives an increase for both conductive and convective flux. The results show that the improved Trombe wall works more effectively than the classical Trombe wall system in utilizing solar energy for the example of test room.
The project comprises 80 passive solar houses and 20 houses with combined passive and active sola... more The project comprises 80 passive solar houses and 20 houses with combined passive and active solar heating in the Qinghai–Tibet Plateau region. The indoor thermal environment and the performance of the solar collection components are discussed through field testing during the coldest part and the transition part of the heating period. Moreover, the fractional energy savings, thermal efficiency, and fraction of the combined passive and active solar heating are analyzed. The results indicate that an auxiliary heat source should be used as a supplement. By comparing the heating of a passive solar house with a vernacular house, the energy savings of the passive solar house in the demonstration project were found to be approximately 62% during the study period. The thermal efficiency of the active solar heating system is 84.5%, and the solar energy utilization is 38.2%. The monthly average heat load index is 15.2 W m 22 .
Sustainable energy system design offers credible and innovative strategies to overcome environmen... more Sustainable energy system design offers credible and innovative strategies to overcome environmental energy crises. Solar walls offer feasible technique for the exploitation of directional flow of heat in buildings. This article reviewed state-of-the-art concepts, applications and significance of solar walls for energy savings in buildings. Detailed operational framework of various solar-wall configurations, technology and efficiency as building component was discussed. Need for this sustainable energy design in buildings and constraints associated with their realisation were reported to aid proposed future research work.
In this article, the comparison of energy performance between a classical and an improved Trombe ... more In this article, the comparison of energy performance between a classical and an improved Trombe wall of a model test room has been carried out experimentally. The case study is conducted in Borj Cedria, Tunisia, where there is always heating requirements. Here, we propose an improved Trombe wall whose absorber wall is covered with a thin black copper panel backed rather than simply painted black wall. The proposed idea would offer improved thermal performance, especially in natural convection. The comparison shows that the improved Trombe wall design gives an increase for both conductive and convective flux. The results show that the improved Trombe wall works more effectively than the classical Trombe wall system in utilizing solar energy for the example of test room.
The project comprises 80 passive solar houses and 20 houses with combined passive and active sola... more The project comprises 80 passive solar houses and 20 houses with combined passive and active solar heating in the Qinghai–Tibet Plateau region. The indoor thermal environment and the performance of the solar collection components are discussed through field testing during the coldest part and the transition part of the heating period. Moreover, the fractional energy savings, thermal efficiency, and fraction of the combined passive and active solar heating are analyzed. The results indicate that an auxiliary heat source should be used as a supplement. By comparing the heating of a passive solar house with a vernacular house, the energy savings of the passive solar house in the demonstration project were found to be approximately 62% during the study period. The thermal efficiency of the active solar heating system is 84.5%, and the solar energy utilization is 38.2%. The monthly average heat load index is 15.2 W m 22 .
Sustainable energy system design offers credible and innovative strategies to overcome environmen... more Sustainable energy system design offers credible and innovative strategies to overcome environmental energy crises. Solar walls offer feasible technique for the exploitation of directional flow of heat in buildings. This article reviewed state-of-the-art concepts, applications and significance of solar walls for energy savings in buildings. Detailed operational framework of various solar-wall configurations, technology and efficiency as building component was discussed. Need for this sustainable energy design in buildings and constraints associated with their realisation were reported to aid proposed future research work.
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Papers by Jorgelina Ulla