研究目的
To analyze the potential for integrated solar energy collection in the roofs of recently built single-family homes in Concepción, Chile, and to promote the installation of domestic renewable energy systems.
研究成果
The study suggests that adequate solar collection levels using integrated systems can be achieved on the roofs of a variety of recent housing models. This advocates significant potential for this dwelling type to use this renewable energy source to supply its basic domestic energy needs, as well as contribute seasonal (heating) requirements or return surplus to the urban grid for use in other areas.
研究不足
The results obtained are estimates based on general statistics for energy demand, usual climatic conditions, and possible technologies. Cost of installation and maintenance of the systems should be also regarded, as well as the management of supplies to the grid.
1：Experimental Design and Method Selection:
The study involved a review of recent residential dwellings based on photographic and building records, followed by analysis of roof conditions and incoming radiation, and concluding with an estimation of their relationship to residential energy demand according to statistics. The potentials of a hybrid collection and supply system were also explored.
2：Sample Selection and Data Sources:
The housing developments were identified from satellite photographs published on Google Earth 7.1.2.2041 to determine the areas of the city with most recent residential developments. Residential developments occupying over 4,000 sqm of urban land, involving more than ten similar houses, were easily identifiable.
3：2041 to determine the areas of the city with most recent residential developments. Residential developments occupying over 4,000 sqm of urban land, involving more than ten similar houses, were easily identifiable.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Archicad 17.0 software was used to reconstruct the three-dimensional roof layout of each housing model to calculate roof area in relation to total floor area.
4：0 software was used to reconstruct the three-dimensional roof layout of each housing model to calculate roof area in relation to total floor area.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The geometry of roofs was determined to decide the most preferable section according to size and orientation. The solar radiation was estimated for the main or secondary roof sections according to the formula given by local authority regulations and solar energy records for the locality.
5：Data Analysis Methods:
The total energy produced and averages for each case were calculated based on an average-performance photovoltaic system. Monthly supply and demand were compared under both average and best-case/worst-case scenarios.
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