Thermal accumulators of phase change based on paraffin

Purpose of research. Due to the growing demand for energy-saving technologies around the world and in the Russian Federation, thermal energy storage devices are interesting for research. There are various ways to accumulate thermal energy, one of them is using thermal accumulators at a phase transition. These devices will be the target of research for further development. Methods. One of the most effective heat-storing substances of phase transition is paraffin. In the process of reviewing the scientific literature, three main areas for the use of thermal accumulators of phase transition were identified: heating and hot water supply systems from traditional energy sources, heating and hot water supply systems from renewable energy sources, pre-start preparation internal combustion engines. An unpackaged heat accumulator with a phase change can be used to accumulate low-grade heat in the return pipeline of a heating system; another type of accumulator will be effective when charged from a solar energy source. To preheat the internal combustion engine in a car before starting it, you can also use a heat accumulator. Results. The review and analytical study of existing phase change heat accumulators showed that existing phase change heat accumulators based on paraffin can be improved by trying different arrangement configurations, using polymer materials to supply coolant, and looking for ways to reduce the volume and weight of their design. Conclusion. Further comprehensive study of phase transition heat accumulators will make it possible to find effective ways to use it in individual heating and hot water supply systems, as well as in internal combustion engines. Look for new directions for their application, which will be the goal of further research.