Method for determination of carbon dioxide emissions from combustion sources used to heat a working fluid
First Claim
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1. A method comprising:
- measuring a first energy of feedwater entering into a steam generation system;
where the steam generation system is a boiler;
measuring a second energy of steam or water exiting the steam generation system;
subtracting a difference between the first energy and the second energy to determine a total energy absorbed by the steam generation system;
dividing the total energy absorbed by the steam generation system by an efficiency of the steam generation system to determine a heat input to the steam generation system;
determining the carbon emissions from the heat input to the steam generation system;
where the heat input is obtained from the combustion of carbon based fuels; and
controlling the carbon emissions by adjusting a flow of feedwater or steam;
where the first energy and the second energy are both heat energies related to the mass and enthalpy of the feedwater entering into the steam generation system and the steam of water exiting the steam generation system respectively; and
where the carbon emissions can be determined from the Equations below;
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Abstract
A method for determining carbon emissions from a steam generation system is disclosed. It includes measuring a first energy of feedwater entering into a steam generation system and measuring a second energy of steam exiting the steam generation system. The first energy is subtracted from the second energy to determine a total energy absorbed by the steam generation system. The total energy absorbed by the steam generation system is divided by the total energy to determine a heat input to the steam generation system. The heat input is used to determine the carbon emissions from the steam generation system.
5 Citations
30 Claims
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1. A method comprising:
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measuring a first energy of feedwater entering into a steam generation system;
where the steam generation system is a boiler;measuring a second energy of steam or water exiting the steam generation system; subtracting a difference between the first energy and the second energy to determine a total energy absorbed by the steam generation system; dividing the total energy absorbed by the steam generation system by an efficiency of the steam generation system to determine a heat input to the steam generation system; determining the carbon emissions from the heat input to the steam generation system;
where the heat input is obtained from the combustion of carbon based fuels; andcontrolling the carbon emissions by adjusting a flow of feedwater or steam;
where the first energy and the second energy are both heat energies related to the mass and enthalpy of the feedwater entering into the steam generation system and the steam of water exiting the steam generation system respectively; and
where the carbon emissions can be determined from the Equations below; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method comprising:
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calculating the total energy absorbed by a working fluid in a boiler as it undergoes a change of state; dividing the total energy absorbed by the boiler by an efficiency of the boiler to determine a heat input to the boiler; and determining carbon emissions from the heat input to the boiler; and controlling the carbon emissions by adjusting a flow of feedwater or steam; and
where the carbon emissions can be determined from the Equations below; - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification