Sorption-based Energy Storage Systems: A Review

• Main Authors: Kyaw Thu, Nasruddin Nasruddin, Sourav Mitra, Bidyut Baran Saha
• Format: Article
• Language: English
• Published: Universitas Indonesia 2019-04-01
• Series: Makara Journal of Technology
• Subjects: energy storage, thermochemical, renewable energy, adsorption, porous media
• Online Access: http://journal.ui.ac.id/technology/journal/article/view/3691

Mismatch timing between supply and demand calls for energy storage systems. Energy storage systems become further substantial with the widespread implementation of renewable energy. These systems can mitigate problems such as supply unreliability and meeting demand during peak hours that are often associated with renewable energy sources. Energy can be stored in various forms, yet storage systems can be generally grouped based on their output form namely: (i) the electricity and (ii) heat. Electrical energy is the most convenient and effective form since electricity can drive almost all devices. The electricity itself is vastly produced by thermodynamic cycles at a particular thermal efficiency using heat. Meanwhile, thermal energy for HVAC&R and hot water remains the largest portion of the building energy sector. Thermal energy can be stored in the form of sensible, latent and thermochemical. This review focuses on sorption-based energy storage systems which are thermochemical types. These systems exploit endothermic and exothermic sorption processes for charging and discharging of thermal energy. Sorption-based storage systems exhibit huge potential due to high energy density and their ability to store energy at room temperature. We discussed the state-of-the-art, current development, key challenges and future aspects of sorption-based energy systems.