The comparison to a turbo got me thinking if some of the compression energy could be recovered in the expansion stage. Turns out the answer is yes, but the ener

The comparison to a turbo got me thinking if some of the compression energy could be recovered in the expansion stage. Turns out the answer is yes, but the energy recovery is limited to 7% at best: https://www.sciencedirect.com/science/article/pii/S1876610215027897 https://www.sciencedirect.com/science/article/pii/S187661021...