Patent ID: 8823189
Filing Date: 2014-09-02
Classification: F01K,F03B,F03G,Y02E

Abstract:
1. A power recovery system for recovery of part of the required energy input during regasification of LNG using a Rankine power cycle, the power recovery system comprising: a working fluid; a system containing the working fluid in a closed loop; a pump two-phase liquid-vapor expander generator comprising: a heat source connected to the pump two-phase liquid-vapor expander generator via the pipe system, the heat source heating the pressurized working fluid into higher vapor content, the heated and pressurized two-phase working fluid then re-entering the pump two-phase liquid-vapor expander generator at the two-phase liquid-vapor expander wherein the heated and pressurized two-phase working fluid expands and drives the rotating center shaft, and subsequently the induction generator, the expanded two-phase working fluid flowing out of the pump two-phase liquid-vapor expander for cooling and condensation; and a heat sink connected to the pump two-phase liquid-vapor expander generator via the pipe system, the heat sink cooling the expanded two-phase working fluid such that the two-phase working fluid is condensed back to the liquid state, the liquid-phase working fluid then re-entering the pump two-phase liquid-vapor expander generator at the feed pump, and repeating the cycle.