Capturing CO2 from ambient air - David Keith
Capturing CO2 from ambient air - David Keith
Capturing CO2 from ambient air - David Keith
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Appendix A<br />
List of Symbols<br />
A Cross sectional area of the contactor [m 2 ]<br />
C Concentration of <strong>CO2</strong> in <strong>air</strong><br />
C0 Concentration of <strong>CO2</strong> in solution at the drop surface [mol/m 3 ]<br />
Cap Amortized capital cost [US$/yr]<br />
Cin Concentration of <strong>CO2</strong> in <strong>air</strong> at the contactor inlet<br />
Cout Concentration of <strong>CO2</strong> in <strong>air</strong> at the contactor outlet<br />
] Concentration of carbonate ions in solution [mol/L]<br />
�<br />
cl Heat capacity of solution<br />
[CO 2−<br />
3<br />
� J<br />
K·kg<br />
�<br />
J<br />
cp,<strong>air</strong> Heat capacity of <strong>air</strong> at constant pressure K·kg<br />
D Drop diameter [m]<br />
Dg Diffusivity of <strong>CO2</strong> in gas (<strong>air</strong>)<br />
Dl Diffusivity of <strong>CO2</strong> in liquid (water)<br />
˙E Rate of energy use by the contactor<br />
˙Eelec Rate of electrical energy use by a component<br />
˙E f an Rate of energy use to run the fan in the contactor<br />
˙Eli fting Rate of energy use to lift solution in the contactor<br />
˙Enozzle Rate of energy use to overcome the pressure drop across the nozzles in the contactor<br />
˙Etherm Rate of thermal energy use by a component<br />
�<br />
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