Abstract: Ocean Thermal Energy Conversion (OTEC) systems and methods utilizing the systems are disclosed for producing a useable form of energy utilizing warm surface seawater and cold seawater from depths up to 2 miles below the surface and utilizing a multi-component working fluid. The systems and methods are designed to maximize energy conversion per unit of cold seawater, the limited resource, achieving relative net outputs compared to a Rankine cycle using a single component fluid by at least 20% and even as high as about 55%.

Abstract: Ocean Thermal Energy Conversion (OTEC) systems and methods utilizing the systems are disclosed for producing a useable form of energy utilizing warm surface seawater and cold seawater from depths up to 2 miles below the surface and utilizing a multi-component working fluid. The systems and methods are designed to maximize energy conversion per unit of cold seawater, the limited resource, achieving relative net outputs compared to a Rankine cycle using a single component fluid by at least 20% and even as high as about 55%.

Abstract: Simple thermodynamic cycles, methods and apparatus for implementing the cycles are disclosed, where the method and system involve once or twice enriching an upcoming basic solution stream, where the systems and methods utilize relatively low temperature external heat source streams, especially low temperature geothermal sources.

Abstract: A direct heat exchange method and apparatus for recovering heat from a liquid heat source is disclosed, where the method includes contacting a liquid heat source stream with a multi-component hydrocarbon fluid, where the hydrocarbon fluid compositions has a linear or substantially linear temperature versus enthalpy relationship over the temperature range of the direct heat exchange apparatus.

Abstract: Methods and systems for converting waste heat from cement plant into a usable form of energy are disclosed. The methods and systems make use of two heat source streams from the cement plant, a hot air stream and a flue gas stream, to fully vaporize and superheat a working fluid stream, which is then used to convert a portion of its heat to a usable form of energy. The methods and systems utilize sequential heat exchanges stages to heat the working fluid stream, first with the hot air stream or from a first heat transfer fluid stream heated by the hot air stream and second with the flue gas stream from a second heat transfer fluid stream heated by the hot air stream.

Abstract: A new method, system and apparatus for power system utilizing flue gas streams and a multi-component working fluid is disclosed including a heat recovery vapor generator (HRVG) subsystem, a multi-stage energy conversion or turbine subsystem and a condensation thermal compression subsystem (CTCSS), where the CTCSS receives a single stream from the turbine subsystem and produces at least one fully condensed stream.

Abstract: An apparatus, system and method for transferring heat from a hot flue gas stream from a cement plant including large particles and dust to a working fluid of a power plant via a high temperature heat transfer fluid without exposing all or most of the equipment to the erosive force of the particles and dust is disclosed where the apparatus includes a cement plant, a particle separation and heat transfer system and a power plant.

Abstract: A system and method are disclosed for converting heat into a usable form of energy, where the system and method are designed to utilize at least two separate heat sources simultaneously, where one heat source stream has a higher initial temperature and a second heat source stream has a lower initial temperature, which is transferred to and a multi-component working fluid from which thermal energy is extracted.

Abstract: Embodiments of the present invention disclose systems and methods for the efficient conversion of solar energy into a useable form of energy using a solar collector subsystem and a heat conversion subsystem. The systems and methods transfer solar energy directly to an intermediate solution and a working solution and indirectly to and between a basic rich solution, a condensing solution, a lean solution and a rich vapor solution. The systems and methods also include condensing the basic rich solution using an external coolant. The systems and methods support a closed thermodynamic cycle.

Abstract: Solar-thermal energy storage systems and methods are disclosed including a heat transfer fluid storage and distribution subsystem (HTFSDSS) including at least N storage tanks, control valves, and transfer lines, a solar heating or collector subsystem (SHSS) connected to the HTFSDSS via the transfer lines, and a heat conversion or power subsystem (HCSS) connected to the HTFSDSS via the transfer lines, where at least one of the N tanks is empty at the start of an operational cycle and heat transfer fluid is forwarded from filled tanks in the HTFSDSS through the other subsystem and into the empty tank or tanks.

Abstract: Power generation systems and methods are disclosed for use with medium to high temperature heat source stream, gaseous or liquid, where the systems and methods permit efficient energy extraction for medium and small scale power plants.

Abstract: A system and method are disclosed for the combined production of power and heat from an external heat source stream, where the system utilizes four basic stream of different compositions to co-generate power and to heat an external heat absorber stream from an external heat source stream.

Abstract: A direct heat exchange method and apparatus for recovering heat from a liquid heat source is disclosed, where the method includes contacting a liquid heat source stream with a multi-component hydrocarbon fluid, where the hydrocarbon fluid compositions has a linear or substantially linear temperature versus enthalpy relationship over the temperature range of the direct heat exchange apparatus.

Abstract: System and method is disclosed to increase the efficient of internal combustion engines using to generate electric power, where the system and method converts a portion of thermal energy produced in the combustion process to a usable form of energy.

Abstract: The present invention discloses systems and methods for converting heat from external heat source streams or from solar energy derived from a solar collector subsystem. The systems and methods comprise a thermodynamic cycle including three internal subcycles. Two of the subcycles combine to power a higher pressures turbine and third or main cycle powers a lower pressure turbine. One of the cycles increases the flow rate of a richer working solution stream powering the lower pressure turbine. Another one of the cycles is a leaner working solution cycle, which provides increased flow rate for leaner working solution stream going into the higher pressure turbine.

Abstract: Power generation systems and methods are disclosed for use with medium to high temperature heat source stream, gaseous or liquid, where the systems and methods permit efficient energy extraction for medium and small scale power plants.

Abstract: Methods and systems for converting waste heat from cement plant into a usable form of energy are disclosed. The methods and systems make use of two heat source streams from the cement plant, a hot air stream and a flue gas stream, to fully vaporize and superheat a working fluid stream, which is then used to convert a portion of its heat to a usable form of energy. The methods and systems utilize sequential heat exchanges stages to heat the working fluid stream, first with the hot air stream or from a first heat transfer fluid stream heated by the hot air stream and second with the flue gas stream from a second heat transfer fluid stream heated by the hot air stream.

Abstract: Power generation systems and methods are disclosed for use with medium to high temperature heat source stream, gaseous or liquid, where the systems and methods permit efficient energy extraction for medium and small scale power plants.

Abstract: An apparatus, system and method for transferring heat from a hot flue gas stream from a cement plant including large particles and dust to a working fluid of a power plant via a high temperature heat transfer fluid without exposing all or most of the equipment to the erosive force of the particles and dust is disclosed where the apparatus includes a cement plant, a particle separation and heat transfer system and a power plant

Abstract: A system and process are disclosed for converting thermal energy into power from three different compositional streams of a multi-component working fluid, one of the streams being a lean working fluid stream pressurized into its super-critical state before being vaporized in a heat recovery vapor generator, another stream is a rich working fluid steam and the third stream is an intermediate working fluid stream, where the system and process has increased overall efficiency.