A Review on Water Heating Applications That Uses Renewable Solar Energy

In the present review paper, the existing different solar water heating applications are studied with their working principles. Now a day, plenty of hot water is used for domestic, commercial and different industrial purposes. Various resources i.e. coal, diesel, gas etc. are largely used to heat water and sometimes for steam production. Solar energy is the main alternative to replace the traditional energy sources. The solar thermal water heating system is the technology to harvest the plenty amount of free available solar thermal energy. The solar thermal system is designed to meet the energy demands by various applications. The size of the systems depends greatly on availability of solar radiation, temperature requirement of customer, geographical condition and arrangement of the solar system components, etc. Therefore, it is necessary to design the solar water heating system as per above considerations. The available literature is reviewed to understand the construction, arrangement, applications and sizing of the solar thermal system for different applications.