SAND BATTERY.pptx

Sand battery

1. SAND BATTERY NAME: PRATHVIRAJ USN:4MW20ME401

2. CONTENT Introduction Working Types Of Heat Storing Sand Battery Charging And Discharging Of Heat-storing Sand Batteries Material Used In Heat-storing Sand Batteries Points Application Of Heat-storing Sand Batteries Comparison To Other Energy Storage Technologies Conclusion Reference

3. INTRODUCTION Heat storing sand batteries are a type of renewable energy storage technology that utilizes the heat capacity of sand to store and release thermal energy. These batteries work by heating a volume of sand to a high temperature using excess renewable energy, such as from solar or wind power

4. WORKING Heat-storing sand batteries store thermal energy in sand, which can then be used to generate electricity. The batteries consist of two tanks of sand, one at a high temperature and one at a low temperature, connected by pipes containing a heat transfer fluid. When the battery is charged, the heat transfer fluid is pumped through the pipes from the hot sand tank to the cold sand tank, transferring thermal energy from the hot sand to the cold sand. The stored thermal energy can be used to generate electricity by transferring the heat to a heat engine, which in turn drives a generator to produce electricity

5. Working

6. Types of Heat-Storing Sand Batteries Indirect Heat-Storing Sand Batteries Direct Heat-Storing Sand Batteries Thermochemical Heat-Storing Sand Batteries Hybrid Heat-Storing Sand Batteries

7. Charging and Discharging of Heat-Storing Sand Batteries Charging Process Heat is transferred to the sand to store thermal energy Sand temperature increases until a threshold is reached, at which point the energy is fully stored Charging times can vary depending on the type of sand battery and the temperature of the heat source

8. Discharging Process When thermal energy is needed, the sand is exposed to a heat sink or other device that can extract the heat The temperature of the sand drops and the stored energy is released as heat Discharging times can vary depending on the type of sand battery and the temperature of the heat sink

9. Material used in heat-storing sand batteries points Sand Heat transfer fluid Enclosure material Electrode and current collectors

10. Application of heat-storing sand batteries Renewable energy storage Heating and cooling Industrial application Emergency backup power

11. Comparison to Other Energy Storage Technologies Lithium-ion Batteries Lithium-ion batteries are widely used for energy storage, but they have limited energy density and can be expensive Pumped hydro storage Pumped hydro storage is a mature and widely-used technology for large-scale energy storage However, it requires specific geological features and can b expensive to build and maintain

12. Comparison to Other Energy Storage Technologies Flywheels Flywheels are a technology that stores energy by spinning a rotor at high speed They are capable of very rapid charging and discharging. but can be expensive and have limited energy storage capacity Thermal Energy Storage Thermal energy storage systems store energy in the form of heat, usually by heating a fluid or material to a high temperature They are often used in conjunction with solar thermal systems or waste heat recovery systems

13. CONCLUSION Heat-storing sand batteries are a promising technology for energy storage, with the potential to store large amounts of energy at a low cost They can be used in a range of applications, such as renewable energy storage, building heating and cooling, and industrial process heat However, there are still challenges to be addressed, such as improving efficiency, reducing maintenance requirements, and integrating with existing energy systems

14. CONCLUSION Research and development efforts are ongoing, and many companies and organizations are investing in this technology With further innovation and progress heat-storing sand batteries may become a key component of a more sustainable and resilient energy system in the future

15. REFERANCE Gabriela, Seasonal Sensible Thermal Energy Storage Solutions, 1st ed. Technical University of Cluj-Napoco, 2017, p.49. http://lejpt.academicdirect.org/A19/049_068.pd f S. Kalaiselvam and R. Parameshwaran, Thermal Energy Storage Technologies for Sustainability, 1st ed. Elsevier, 2017, pp. 1-64. https://www.elsevier.com/books/thermal-energystorage-technologies for sustainability/ kalaiselvam /978-0-12-417291-3 "Energy in the UAE / UAE Embassy in Washington, DC, Uae-embossy.org, 2017.[Online]. Available: http://www.ude-embassy.org/about-uae/energy-upe. (Accessed: 08-Apr-2017]. O. Atoer, STORAGE OF THERMAL ENERGY, 1st ed. Ankara: Gazi University, 2006

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