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Fluid flows can be split into two different types: laminar flows and turbulent flow. In today’s article, we will cover the difference between laminar flows and turbulent flow.

What is Laminar Flow?

Laminar flow occurs when fluid runs in a smooth parallel layer without disruption between the layers. At low speed, the fluid will flow without mixing, creating the illusion of the fluid frozen in motion. Laminar flow is not limited to fluids but also extends to gases.

Laboratory and universities achieve laminar flow using a Laminar Flow Hood where gas travels for some distance through a series of parallel small tubes to protect samples from airborne contamination where a sterile environment is required.

What is Turbulent Flow?

78% of the Earth's atmosphere is made up of Nitrogen gas and is one of the most abundant compounds available in the air. Industries manufacturing food and drugs require the use of nitrogen as part of their manufacturing process.

What Other Industries Use Nitrogen Gas in Their Manufacturing Process?

Semiconductor Industry

Steel Manufacturing

Ligh Bulb Manufacturing

There are two main methods of preparing nitrogen for industrial application; mechanical and fractional distillation.

Fractional Distillation

The process of cooling air into a liquid state, then separating the nitrogen from other chemical compounds using differing in boiling points. This method produces high purity nitrogen for industrial use.

Mechanical Generation

There are two ways nitrogen can be produced using the mechanical generation; membrane filtration or pressure swing absorption (PSA).

Membrane Filtration

Using small semipermeable hollow fiber tube filters to separate compounds in the air. This quick process consumes less energy when compared to fractional distillation, but produces a lower grade nitrogen purity.

Pressure Swing Absorption (PSA)

This method of nitrogen generation using the mechanical generation process is a bit more complicated. Using specialized materials CMS (carbon molecular sieve) to attract the wanted compound based on different molecular properties and separate it from undesirable compounds producing a high purity of nitrogen.

Nitrogen makes 78% of the air we breathe, odorless, tasteless, and colorless. A unique property of nitrogen is the ability to form multiple bonds with a variety of elements and compounds, making N2 versatile for use in a variety of industries.

What Industries Use Nitrogen Gas?

Food Industry – The food industry uses nitrogen when packaging food to prevent oxidation and food from going bad.

Semiconductor Industry – The semiconductor industry uses to remove oxygen when developing transistors and circuits to prevent oxidation leading to failure in circuits.

Steel Manufacturing – When manufacturing steel, nitrogen is used to prevent oxidation.

Ligh Bulb Manufacturing – An alternative to argon gas is nitrogen when manufacturing a light bulb. It is also a cheaper alternative.

There are two methods of preparing nitrogen for industrial application; mechanical and fractional distillation. Fractional Distillation After nitrogen has been separated using either of the methods described above it can be stored for future use.