COMPRESSED GAS SYSTEM EMPLOYING HYDRAULIC MOTOR FOR ENERGY CAPTURE

摘要

Various techniques may be employed alone or in combination to allow efficient storage and recovery of energy from compressed gas. In certain embodiments, a hydraulic motor may capture energy released by depressurization of a separated heat-exchange liquid that was pressurized during gas compression. Particular embodiments may be employed in conjunction with a heat engine. According to some embodiments, a compressed gas storage unit may include a gas-liquid interface between a liquid portion and a gas portion, with a hydraulic pump/motor capturing energy of liquid displaced by an inflow of compressed gas.