The various energy storage devices are Fuel Cells, Rechargeable Batteries, PV Solar Cells, Hydrogen Storage Devices etc. In this paper, the efficiency and shortcoming of various energy storage devices are discussed. In fuel cells, electrical energy is generated from chemical energy stored in the fuel.
The solar thermal storage unit can also improve the equipment performance in terms of a smooth supply of energy with fluctuated solar energy collection as solar radiation varies throughout a day.
For some period of a year, solar thermal production exceeds the demand for heating or cooling, while in other periods the production is less than the demand. Seasonal thermal energy storage would be a solution to store heat at the time that is not needed and use is for the time that is required.
Md. Parvez Islam, Tetsuo Morimoto, in Renewable and Sustainable Energy Reviews, 2018 Winter stated that a solar collector should have good solar radiation and heat (thermal energy) transfer capacity as much as possible.
Solar heat storage technology is urgently needed to harness intermittent solar energy to directly drive widespread heat-related applications. However, achieving high-efficiency solar heat storage remains elusive due to the loss of heat to the surroundings, especially through radiative processes.
The solar heat storage devices were composed of PCM and solar radiation absorbers. The PCM consisted of Cu foam and PEG1000, which were assembled by vacuum impregnation of the Cu foam with molten PEG1000 at 60°C in a vacuum oven for 2 h, as has been previously reported. 50 Subsequently, the obtained PCM was tightly stacked in a graphite container.
Solar energy is the result of the nuclear fusion process that takes place in the sun. This energy is the engine that drives our environment, with the solar energy that reaches the Earth''s surface being 10,000 times greater than the energy currently consumed by all of …