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

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SUMMARY

The discussion focuses on finding real-world applications for a working fluid consisting of air and liquid n-octane in a cylindrical duct maintained at a constant temperature. Key applications of n-octane include its use as a solvent for nonpolar substances, particularly in the pharmaceutical industry for the purification of active pharmaceutical ingredients (APIs). Additionally, n-octane serves as a component in paints, varnishes, and adhesives, and is utilized in the separation of azeotropes in chemical processes, notably in the production of elastane fibers.

PREREQUISITES
  • Understanding of fluid dynamics, specifically laminar and turbulent flow
  • Knowledge of heat transfer principles in cylindrical ducts
  • Familiarity with the properties and applications of n-octane
  • Basic concepts of azeotropic mixtures and their separation techniques
NEXT STEPS
  • Research the heat transfer characteristics of fluids in cylindrical ducts
  • Explore the role of n-octane in pharmaceutical applications and its impact on API purification
  • Investigate the methods for separating azeotropes in chemical processes
  • Study the applications of n-octane in the formulation of adhesives for plastics and elastomers
USEFUL FOR

Chemical engineers, pharmaceutical researchers, and professionals involved in fluid dynamics and heat transfer applications will benefit from this discussion.

dpasini3
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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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