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Sources Of Energy

Decent Essays

With increased additions of renewable sources in our existing infrastructure, major challenges are arising, as their supply is generally unstable and unpredictable. Too often, integrated renewable sources are curtailed and the energy is wasted for the safety of our existing electrical grid [1-6]. A logical solution would be to include large-scale energy storage systems, which would reduce the curtailment and increase the utilization of these clean sources, such as wind turbines and photovoltaics. A large-scale energy storage system would allow the renewable sources to store excess power during periods of low demand, and provide the stored energy during periods of peak electricity demand. Therefore, allowing renewable sources to provide …show more content…

One disadvantage of HyPES is its low energy density, which is the reason why they are not commercially available, however under laboratory-scale examination [28-29]. Of the more attractive I-CAES proposals, one seeks to spray water droplets inside a reciprocating compressor to actively absorb the heat of compression [30]. However, such machinery has to be adjusted to endure water. Recent works investigate the compression of foam for better heat transfer [31].
In advanced adiabatic CAES, the heat of compression is stored and reused during the discharge process. The temperatures reached and stored by the generated heat of compression in AA-CAES have a major influence on the system design and performance [32]. Specifically, the cycle efficiency is dependent on, and increases with, the absolute storage temperature [33-39]. Therefore, the following stored temperature ranges can generally categorize AA-CAES: 1) 400C, 2) between 200C to 400C, and 3) below 200C. A high temperature AA-CAES plant has two major challenges. First, increased engineering challenges arise when designing a TES unit that is capable of handling both high-temperature and high-pressure operations. Second, compressors capable of providing the exceedingly high temperatures are commercially unavailable. [40-42]. In addition, the limited

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