Levha kanatçık geometri ile genişletilmiş ısı transfer yüzey alanına sahip bir havalı güneş kollektörü performans analizi

Today, most of the energy consumption is provided by coal, oil and natural gas. These cause many problems such as increase in greenhouse gas level, global warming and environmental pollution. For more countries to meet their commitments to reduce carbon dioxide emissions, the share of renewable energy needs to increase to account for most of the world's energy supply. Solar energy has great potential as an alternative to these fuels. An hour of solar radiation coming to the earth provides enough energy to meet the global energy needs for a full year. Turkey intensively uses solar collectors that generate hot water from solar energy. However, its use in space heating is very limited. Air solar collectors are a kind of heat exchanger that heats the air passing through it with the rays coming from the sun. Since the heat transfer rate to the air is lower than the ratio to the liquid in these systems, it is necessary to increase the heat transfer surface area in order to eliminate this deficiency. In the project to be done, primarily the air solar collector design will be made and the design will be optimized to provide air flow. A radiator will be used to increase the surface area. This radiator will be cut in appropriate sizes by laser or water jet in a way that will not prevent the air flow and will be made suitable for the solar collector design. The design of the obtained system will be made and adapted to the previously determined air solar collector geometry. The resulting radiator geometries will be placed in certain parts of the collector along the air flow. CFD analysis of the air solar collector with increased surface area will be made. In these analyzes, the effect of many parameters such as the placement angle of the radiator and the number of radiators on the system performance will be examined. The designed air solar collector will be produced. The necessary materials will be procured and the system will be established. Air flow will be done with the help of a fan. The system will be tested in various weather conditions, at various radiator positions, angles and numbers. In addition, the collector surface will be coated with black paint and selective surface paint, and the effect of these coatings will be examined separately. Finally, the system will be optimized and the air solar collector with an expanded surface area with radiator geometry will be examined economically. Thus, it will be suitable for individual use. Solar energy can be used for domestic or space heating. Where solar energy is sufficient, it will eliminate the fuel cost, and where it is insufficient, it will contribute to the reduction of the fuel cost.