Excess Energy from A Vapor Compression System by Bin-Juine Huang, National Taiwan University
His interest has been Cavitation-involved (or LENR) energy technology (since 2018)
From one of the photos he showed, I believe one of his examples was the hydrodynamics gadget (https://www.hydrodynamics.com/). I worked on this years ago, visiting them several times. I observed excess heat ranging from 1.05 to 1.15 of input. Recovery without excess heat was ~0.90 as I recall. Two methods of calorimetry were used. The second was with a custom designed flow calorimeter, which looked very reliable and professional to me. It was designed by the Dean of Mechanical Engineering at Georgia Tech., whose name I forget. It produced a clear result of 1.15.
The company no longer wishes to discuss the fact that the machine sometimes appears to produce excess heat.