A thermodynamic system that produces mechanical, electrical power, and/or fluid streams for heating or cooling. The cycle contains a combustion system that produces an energetic fluid by combustion of a fuel with an oxidant. A thermal diluent may be used in the cycle to improve performance, includin
A thermodynamic system that produces mechanical, electrical power, and/or fluid streams for heating or cooling. The cycle contains a combustion system that produces an energetic fluid by combustion of a fuel with an oxidant. A thermal diluent may be used in the cycle to improve performance, including but not limited to power, efficiency, economics, emissions, dynamic and off-peak load performance, and/or turbine inlet temperature (TIT) regulation and cooling heated components. The cycle preferably includes a heat recovery system and a condenser or other means to recover and recycle heat and the thermal diluent from the energetic fluid to improve the cycle thermodynamic efficiency and reduce energy conversion costs. The cycle may also include controls for temperatures, pressures, and flow rates throughout the cycle, and controls power output, efficiency, and energetic fluid composition.
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1. A method providing a carbon-rich fluid, using a reactor with an inlet, a reaction chamber, and an outlet in fluid communication with an expander which is upstream of and in fluid communication with a downstream hot fluid heat exchanger, the method comprising: delivering a reactant fluid comprisin
1. A method providing a carbon-rich fluid, using a reactor with an inlet, a reaction chamber, and an outlet in fluid communication with an expander which is upstream of and in fluid communication with a downstream hot fluid heat exchanger, the method comprising: delivering a reactant fluid comprising a reactant including carbon to the reactor;delivering a co-reactant fluid, comprising a co-reactant including oxygen, to the reactor;delivering, upstream of the reactor outlet, a diluent fluid, comprising a vaporizable diluent;reacting the reactant fluid together with the co-reactant fluid in the reaction chamber to form an energetic fluid comprising products of reaction, diluent, and residual components of the reactant fluid, co-reactant fluid, and diluent fluid;extracting mechanical energy from the energetic fluid while expanding it through the expander and forming an expanded fluid;cooling one of the energetic fluid and the expanded fluid by a coolant fluid using the hot fluid heat exchanger, to obtain a cooled carbon-rich fluid, the cooling resulting in a heated coolant fluid;delivering mechanical energy to a mechanical use;delivering the heated fluid to a thermal fluid use;delivering the cooled carbon-rich fluid to a carbon fluid use;controlling the reactant fluid delivery to provide a thermal energy sufficient to deliver the mechanical energy and the thermal fluid;controlling the oxidant to reactant ratio to less than 334% of the stoichiometric ratio;thereby forming the carbon-rich fluid comprising greater than 6.40% carbon dioxide by mass on a dry basis;controlling the diluent fluid delivery upstream of the reactor outlet to constrain the peak temperature of the energetic fluid entering the expander to below a specified expander inlet temperature; andcontrolling the delivery of coolant fluid through the hot fluid heat exchanger;wherein recoveringheat from the energetic fluid to control the temperature of the heated coolant fluid to greater than a predetermined minimum temperature. 2. The method of claim 1, wherein the carbon fluid use consists of one of food production, energy crop production, aquaculture, or mariculture. 3. The method of claim 1, further comprising: separating a portion of the carbon dioxide from one of the reaction products and the cooled carbon-rich fluid. 4. The method of claim 3, further comprising delivering the separated carbon dioxide to one of a pharmaceutical production process, and a biosynthetic process. 5. The method of claim 3, further comprising sequestering the carbon dioxide in one or more of deep waters, partially depleted petroleum fields, and geological formations. 6. The method of claim 1, wherein the co-reactant fluid comprises nitrogen, and further wherein controlling delivery of the reactant fluid, the co-reactant fluid and the diluent fluid comprises production of oxides of nitrogen in the reaction chamber above pollutant emission limits, andwherein delivering the cooled carbon-rich fluid with the oxides of nitrogen to horticultural products for ripening. 7. The method of claim 1, further comprising delivering the cooled carbon-rich fluid to one of a pharmaceutical production process, and a biosynthetic process. 8. The method of claim 1 further comprising controlling one or both of the reactant fluid and the co-reactant fluid to obtain a ratio of the co-reactant to reactant relative to the stoichiometric co-reactant to reactant ratio within a predetermined range between a first ratio and a second ratio. 9. The method of claim 1 wherein at least one of the reactant fluid, the co-reactant fluid, and the diluent fluid comprises nitrogen, and wherein controlling the reactant fluid delivery and the diluent fluid delivery upstream of the reactor outlet comprise controlling the amount of oxides of nitrogen below a prescribed limit. 10. The method of claim 1 further comprising controlling reactant pollutant concentrations in the energetic fluid by controlling diluent delivery within the reactor. 11. The method of claim 1, further comprising delivering the cooled carbon rich fluid to a petroleum recovery process. 12. The method of claim 3, further comprising delivering a portion of the separated carbon dioxide as a flooding fluid in a petroleum recovery process. 13. The method of claim 1, further comprising controlling the oxidant to reactant ratio to less than 150% of the stoichiometric ratio, thereby obtaining a carbon-rich fluid that comprises greater than 14.2% carbon dioxide by mass on a dry basis.
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