By converting solar radiation into thermal energy through collectors, solar heating systems can heat water, air, etc. Designs that show the integration of CPC solar systems in buildings refer to static concentrators with linear absorbers on building roofs, facades or under balconies. The prevalence of green buildings is increasing around the world, something that both customer demand and government policies encourage and often even demand. With design applications for passive solar systems, solar heat gains from solar energy can be increased during the winter months.
For this reason, a cold water tank (white circular tank at the top) are installed above the collector and a horizontal hot water cylinder to supply water to both the solar system and the building. The problem will be even more serious when solar space heating and cooling systems are used, since they required many more solar collectors. Photovoltaic panels typically convert ~ 6 to 18% of incident solar energy into electrical energy, and the remaining solar energy is available to be captured as useful heat. Active solar systems are distinguished from passive systems, which use the structure of the building, in terms of collecting solar energy, storing accumulated heat and distributing heat to spaces.
These systems are generally mounted on the roofs of buildings without attempting to incorporate them into the building envelope, which creates aesthetic challenges, space availability issues, and envelope integrity issues. Most solar components are mounted on the roofs of buildings and are often considered to be a foreign element in the building structure. Most solar collection components are mounted on the roofs of buildings without attempting to incorporate them into the building envelope, as shown in figures 4 and 5.Compliance with the thermal loads of buildings will be achieved mainly through the widespread use of renewable energies, following standard energy-saving measures for buildings, such as good insulation or advanced glazing systems. The growing role of renewable energies means that solar thermal systems (STS) and photovoltaic (PV) energy will play a major role, since they contribute directly to the heating and cooling of buildings and to the supply of electricity and domestic hot water.
For example, when the sun shines, a house with solar panels on its roof may not need electricity from the grid because its solar panels generate enough electricity to meet the needs of residents. The satisfaction of the electrical and thermal loads of buildings will be achieved mainly through the extensive use of renewable energies, following standard energy-saving measures for buildings. As seen above, several solar heating systems can be installed in buildings and each of them must be considered on its own when considering the integration of buildings.
