Effect of different target solar fractions on heat needed to provide space heating, sanitary hot water and swimming pools in Iran: examples of cold climate

Limited fossil fuel resources, population growth, and the need to conserve energy and prevent pollutant emissions make solar heating a very important strategic solution. Due to these circumstances, this study investigated for the first time the use of a flat-panel solar water heater (SWH) in Shahlkod, a cold climate of Iran. Its purpose is to heat the space of a residential apartment, sanitary hot water and swimming pools. In addition, a technology-economic-energy-environmental analysis was performed. Three low, medium, and high sun score scenarios were selected for evaluation and 1-year dynamic analysis was performed with TSOL 2018 commercial software. The Meteonorm 7.3 software has already extracted the necessary climate data.