Finding an application where an air/n-octane mixture is cooled

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A real-world application involving air and n-octane is in the pharmaceutical industry, where n-octane serves as an inert solvent for the purification and recrystallization of active pharmaceutical ingredients. Additionally, n-octane is utilized in paints, varnishes, and adhesives, particularly for plastics and elastomers, due to its non-dissolving properties. It can also aid in separating azeotropes in chemical processes, which is crucial in producing materials like elastane fibers. The discussion highlights the need for evaluating local heat fluxes in both laminar and turbulent flow rates within a controlled temperature environment. Understanding these applications can provide insights into the thermal dynamics of air and n-octane mixtures.
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Homework Statement
I need to find a real-world application in which a working fluid (namely air and liquid n-octane) enters in a cylindrical duct kept at a constant temperature. The fluid enters with an higher temperature. The goal is to evaluate the local heat fluxes in two different flow rates (laminar and turbulent). I haven't been able to find any application.
Relevant Equations
Not required
For now, I just searched online for some kind of application relevant to the problem posed
 
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dpasini3 said:
Homework Statement: I need to find a real-world application in which a working fluid (namely air and liquid n-octane) enters in a cylindrical duct kept at a constant temperature. The fluid enters with an higher temperature. The goal is to evaluate the local heat fluxes in two different flow rates (laminar and turbulent). I haven't been able to find any application.
Relevant Equations: Not required

For now, I just searched online for some kind of application relevant to the problem posed
Others can probably help you more, but for now I did a Google search on applications of n-octane and got some good hits, like this one:

https://www.haltermann-carless.com/products/n-octane

Applications

Like all alkanes (paraffins, saturated hydrocarbons), n-octane is a very good solvent for nonpolar substances, fats and oils. Especially in the pharmaceutical industry, it is used as an inert solvent, for purification, recrystallization and washing of active pharmaceutical substances.

Heavy greases or oils can be diluted with paraffins such as n-octane to facilitate application. It is also found as a component in paints, varnishes and adhesives.

The technically most important octanes, n-octane and iso-octane, are used in special adhesives for plastics and elastomers (rubber) because they do not dissolve the plastic.

To separate liquid chemical products, it can help to add paraffins such as n-octane to the mixture. So-called azeotropes (mixtures that cannot be separated by distillation) can be separated in this way in many cases. This process is used especially in the production of elastane fibers (Spandex, Lycra).
  • Solvents for non-polar substances
  • Purification of API (Active Pharmaceutical Ingredients)
  • Varnishes and paints
  • Adhesives, especially for plastics and elastomers
  • Thinners, cold cleaners
  • Process medium, separation of azeotropes
 
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