Thermodynamic Analysis of an Advanced Adiabatic Compressed Air Energy Storage (AA-CAES)

Abstract

The increase in population and industrialization in the world increases energy consumption and the need for energy production. The fact that most of the energy source is fossil-based causes negative situations such as air pollution and climate change. Therefore, many countries are turning to renewable energy sources such as solar and wind. However, the discontinuity in renewable energy sources prevents sustainability in this field. There is a need for the use of energy storage systems to eliminate fluctuations in renewable energy sources. Among many energy storage systems, Compressed Air Energy Storage (CAES) method has attracted attention in recent years due to its ability to store energy mechanically and to provide high storage capacity. However, Advanced Adiabatic Compressed Air Energy Storage (AA-CAES) systems have been proposed due to the fact that conventional CAES systems are fossil-based and have low efficiency. However, improvements are needed for these systems to become widespread and applicable. In this study, an AA-CAES system is designed to supply energy from wind turbines. The thermodynamic analysis of proposed system is performed and the effect of the key parameters is investigated.