2012
DOI: 10.1590/s0104-66322012000100012
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Simple model for CO2 absorption in a bubbling water column

Abstract: -A simple analytical model is presented for the time-evolution of dissolved CO 2 concentration in a batch water column. The application in mind is the removal of the CO 2 produced by the propulsion plant of a submarine cruising underwater. The model is based on a constant number of constant size CO 2 bubbles within the water column, with uniform gas injection through a porous membrane at the bottom, and bubbles flowing upwards by their own buoyancy through a short water column (the exhaust gas is recirculated)… Show more

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Cited by 15 publications
(7 citation statements)
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“…32 µm, was expected to produce bubbles with diameters of 0.40-0.45 mm 33 that would rise at rates of 0.09-0.11 m s -1 . 34 We assumed that direct injection of these small bubbles through the air stone disk did not alter mixing effects or disturb the plankton in the mesocosm. We inoculated the mesocosms with phytoplankton species that had [键入文字] been studied extensively in the laboratory: two diatoms, Phaeodactylum tricornuntum (CCMA 106) and Thalassiosira weissflogii (CCMP 102), and the coccolithophorid Emiliania huxleyi (CS-369).…”
Section: Methodsmentioning
confidence: 99%
“…32 µm, was expected to produce bubbles with diameters of 0.40-0.45 mm 33 that would rise at rates of 0.09-0.11 m s -1 . 34 We assumed that direct injection of these small bubbles through the air stone disk did not alter mixing effects or disturb the plankton in the mesocosm. We inoculated the mesocosms with phytoplankton species that had [键入文字] been studied extensively in the laboratory: two diatoms, Phaeodactylum tricornuntum (CCMA 106) and Thalassiosira weissflogii (CCMP 102), and the coccolithophorid Emiliania huxleyi (CS-369).…”
Section: Methodsmentioning
confidence: 99%
“…In a bubbling system, the surface area depends on the number and size of bubbles, which are difficult to estimate (e.g. Martínez and Casas, 2012). Here, to simply our model, we define an exchange rate constant into the Eq.…”
Section: Exchanging Between Co2(g) and Co2(aq)mentioning
confidence: 99%
“…where m, mass transfer, j m , mass flow, and S, interfacial area, and it is shown that the relationship between mass transfer is directly proportional to the contact area. Additionally, a more detailed mathematical model of absorption rate with other parameters had been derived by Martinez I. et al [21] using Fick's Law shown in Equation ( 9):…”
Section: System Performance With Deployment Of Carbon Dioxide (Co2) Diffusermentioning
confidence: 99%