Abstract: The present invention relates to systems and methods for implementing a closed loop thermodynamic cycle utilizing a multi-component working fluid to acquire heat from two or more external heat source streams in an efficient manner utilizing countercurrent exchange. The liquid multi-component working stream is heated by a first external heat source stream at a first heat exchanger and is subsequently divided into a first substream and a second substream. The first substream is heated by the first working stream at a second external heat source stream at a second heat exchanger. The second substream is heated by the second working stream at a third heat exchanger. The first substream and the second substream are then recombined into a single working stream. The recombined working stream is heated by the second external heat source stream at a fourth heat exchanger.

Abstract: A hybrid exchanger utilized to heat a working fluid utilizing counter current heat exchange from a heat source fluid. The plates of the hybrid heat exchanger are configured to be welded to provide a more robust design while also allowing optimum heat exchange of the working fluid. In another embodiment, the hybrid heat exchanger includes a plate assembly and shell combination construction. The plate assembly and shell combination provides both optimized counter current heat exchange, while also controlling leakage of fluid from the hybrid heat exchanger. The plates of hybrid heat exchanger have a plurality of fluid bores which facilitate the exchange of fluids including inlet and outlet ports for both the working fluid and the heat source fluid. The bores of the plates include an open mouth having a greater clearance which allows for optimized flow of fluid while also allowing for simplified cleaning and maintenance of the hybrid heat exchanger.

Abstract: The present invention relates to systems and methods for implementing a closed loop thermodynamic cycle utilizing a multi-component working fluid to acquire heat from two or more external heat source streams in an efficient manner utilizing countercurrent exchange. The liquid multi-component working stream is heated by a first external heat source stream at a first heat exchanger and is subsequently divided into a first substream and a second substream. The first substream is heated by the first working stream at a second external heat source stream at a second heat exchanger. The second substream is heated by the second working stream at a third heat exchanger. The first substream and the second substream are then recombined into a single working stream. The recombined working stream is heated by the second external heat source stream at a fourth heat exchanger.

Abstract: An improved apparatus and method for transporting gas through long pipelines is provided. The invention provides a binary mixture (e.g. ammonia-water) KALINA CYCLE® that is used as a bottoming cycle with a gas turbine. The non-isothermal boiling and condensation of the binary mixture achieves a high degree of recuperation. By throttling a part of the binary mixture, cooling is provided to the inlet air chiller for the gas turbine air compressor, which significantly improves the performance of the gas turbine. Thus, the invention provides a system for inlet air chilling integrated into a gas turbine-KALINA CYCLE® combined cycle used in a gas pipeline compressor station for pumping natural gas.