QQ.4. Explain classification of solar thermal conversion.
- Solar thermal conversion generates heat from sunlight, classified by operating temperature and collection method.
- Low-temperature systems (<100°C) use non-concentrating collectors for hot water, space heating.
- Medium-temperature systems (100-300°C) use concentrating collectors for process heat, refrigeration.
- High-temperature systems (>300°C) require highly concentrating collectors for CSP power generation.
Answer: Solar thermal conversion systems efficiently convert sunlight into thermal energy, which can then be utilized across a wide spectrum of applications, from domestic hot water to large-scale electricity generation. The process involves absorbing solar radiation, typically with a solar collector, to heat a working fluid. This conversion technology is primarily classified based on the operating temperature range achievable and the method employed for collecting solar radiation. One fundamental clas...