What do we mean unit SCFH AIR ?

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    Air Mean Unit
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Discussion Overview

The discussion revolves around the unit SCFH (Standard Cubic Feet per Hour) as it pertains to air flow measurement. Participants explore its definition, conversion to other units like m3/hr, and its implications in terms of gas flow and mass flow rates.

Discussion Character

  • Technical explanation, Conceptual clarification

Main Points Raised

  • One participant defines SCFH as Standard Cubic Feet per Hour, suggesting it is a starting point for understanding the unit.
  • Another participant notes that SCFH represents the volume of air flow corrected to standard temperature and pressure, indicating a conversion to Nm3/hr (Normal cubic meters per hour).
  • A participant mentions that having 300 cfm of air at 100 psi results in a higher SCFM, implying a relationship between pressure and flow measurement.
  • One participant states that the purpose of using SCFH is to determine the number of moles of gas per hour, equating SCFM to mass flow rate.

Areas of Agreement / Disagreement

Participants present multiple viewpoints regarding the definition and implications of SCFH, with no consensus reached on the conversion specifics or the broader implications of the unit.

Contextual Notes

The discussion does not clarify the assumptions behind the conversions or the specific conditions under which SCFH is measured, leaving some aspects unresolved.

Eabbas
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Hi.

What do we mean unit SCFH AIR ?
how can convert to m3/hr?
 
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Standard Cubic Feet per Hour. Enough to get you started?
 
Bystander said:
Enough to get you started
thanks a lot
 
Be aware:

That means it is the volume of air flow corrected to standard temperature and air pressure. Therefore, SCFH translates to Nm3/hr (Normal cubic meters per hour).

If you have 300 cfm of air at 100 psi, you've got a lot more SCFM.

http://www.engineeringtoolbox.com/scfm-acfm-icfm-d_1012.html
 
The purpose of using these units is specifically so that you can determine the number of moles of gas per hour. Specifying SCFM is equivalent to specifying the mass flow rate.

Chet
 

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