Experimental analysis of one micro-compressed air energy storage-power generation system with different working fluids

Since the industrial revolution, coal, oil, and natural gas have been burned to emit additional carbon dioxide into the atmosphere. Renewable energy should therefore be widely used, from the current 26 % to 86 % by 2050. However, solar energy and wind energy have problems such as intermittent and instability. This paper uses compressed air for energy storage. The results show that the generated power capacity increases as the inlet gas pressure of the turbine increases, while the total efficiency decreases with the inlet gas pressure. In addition, the highest power generation capacity is not at the highest total efficiency point. The highest total efficiency is about 0.519 and the generated power capacity can reach the peak value of 663.6 W in the compressed air system.

Automated summary

Since the industrial revolution, carbon dioxide has been emitted into the atmosphere through the burning of coal, oil, and natural gas. The use of renewable energy should be greatly increased, from the current 26% to 86% by 2050. However, solar energy and wind energy face challenges such as intermittency and instability. This study proposes the use of compressed air for energy storage and demonstrates that the power capacity increases with turbine inlet gas pressure, while the overall efficiency decreases. The highest total efficiency achieved is approximately 0.519, with a peak power generation capacity of 663.6 W in the compressed air system.