What is the Gilliland correlation?

What is the Gilliland correlation?

• A. The name of the correlation represented by this graph.
• B. A statistical method for evaluating gas-liquid mass transfer.
• C. The pressure–volume relationship in gases.
• D. A method for calculating heat transfer coefficients.

Answer: (A)

The Gilliland correlation is an empirical relation used to predict gas–liquid mass transfer performance by linking a dimensionless mass-transfer number to flow conditions. In practice, it appears as the Gilliland diagram, a plot that lets you estimate the overall mass-transfer coefficient (or the Sherwood number) from the Reynolds and Schmidt numbers of the system. It’s specifically about mass transfer between a gas and a liquid, not about gas pressure–volume behavior or heat transfer, and it isn’t a general statistical method. So the graph shown represents the name of the correlation itself.

The Gilliland correlation is an empirical relation used to predict gas–liquid mass transfer performance by linking a dimensionless mass-transfer number to flow conditions. In practice, it appears as the Gilliland diagram, a plot that lets you estimate the overall mass-transfer coefficient (or the Sherwood number) from the Reynolds and Schmidt numbers of the system. It’s specifically about mass transfer between a gas and a liquid, not about gas pressure–volume behavior or heat transfer, and it isn’t a general statistical method. So the graph shown represents the name of the correlation itself.