Lesson 4 - Gas Transfer
This lesson focuses on transferring gases into and out of solution. It looks in particular at carbon dioxide dissolution in water and beer, and explores how to manipulate pressure, temperature, and gas composition to influence the saturated gas concentration (as well as the rate of gas transfer). It also looks at some tabulated data that are widely used in the industry. The lesson concludes by describing gas transfer technology.
Lesson Information
Pre-requisite Knowledge:
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Gas Laws (Gases/Lesson 2)
Learning Outcomes:
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Describe and apply Dalton’s and Henry’s laws to gas mixtures to calculate saturated concentrations of dissolved gases in liquids.
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Use CO2 saturation tables and correlations to determine saturated concentrations of CO2 in beer.
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Describe the process of super-saturation and how to avoid it or promote it.
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Describe the key parameters which affect the rate of gas transfer and recommend methods for gas transfer rate enhancement.
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Describe common examples of gas transfer technologies.