Changing CO2 cycles and consequent chirping acoustics of long-term unmanned underwater vehicles

摘要

The carbon dioxide circulation power generation system 100 includes a delivery connection 103 for selectively directing the flow of carbon dioxide through the reservoirs 101 and 102 and the turbine 106 which collectively stores a portion of the carbon dioxide liquid and gas 109 and 111. It includes. The system cycle between different seawater depths is to use at least one of seawater pressure and seawater temperature to generate carbon dioxide flow. Located below the movable piston in each tank, the inlet / outlet control valves 107, 108 on the variable volume tanks can selectively divert seawater 110, 112 outward or inward from the bottom of each tank below the piston. It can pressurize carbon dioxide inside compared to carbon dioxide inside other tanks when it is deeper than near the surface. Limitation versus unlimited heat transfer between the reservoir portion and seawater causes different seawater temperatures at depth and near the surface to produce carbon dioxide flow. Acoustic communication can be driven simultaneously with the turbine.