Can kg/m2h Be Converted to m/s for Process Calculations?

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Discussion Overview

The discussion revolves around the possibility of converting the unit kg/m2h to m/s within the context of process calculations. Participants explore the implications of these units in relation to mass flux, linear velocity, and potential applications in various processes.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether kg/m2h refers to evaporation coefficient, water flux, drying rate, or mass transfer coefficient, suggesting that one of these might be convertible to m/s.
  • Another participant argues that there is no direct conversion between kg/m2h and m/s, noting that while SI base units are involved, the presence of hours complicates the conversion.
  • A different participant explains that kg/m2h represents mass flux and outlines a method to convert it to volumetric flow by dividing by density, and then relates volumetric flow to linear velocity.
  • One participant critiques the previous explanation as a calculation rather than a straightforward conversion, expressing uncertainty about the terminology used in the discussion.
  • A later reply humorously acknowledges the potential for miscommunication in online discussions, particularly regarding language nuances.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether a direct conversion is possible, with some arguing for a method of calculation while others maintain that it is not a true conversion.

Contextual Notes

The discussion highlights the complexity of unit conversions involving mass flux and velocity, with assumptions about density and the specific context of the units remaining unresolved.

chispofish
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Is there a wat to transform kg/m2h to m/s

I'm not sure if kg/m2h is for Evaporation coefficient, Water flux,Drying rate or Mass transfer coefficient. However one of the can be transform to m/s (maybe Impingement velocity)
 
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I don't see how you would do that. You are talking about base units in the SI system (except for hours which is easily replaced by seconds). There's no direct conversion.
 
kg/m2h is a mass flux of a substance through an area
m/s is the linear velocity of that substance

Therefore, step 1 is to convert the mass flow to volumetric flow (divide by density).
then you'll need to realize that:
m3/m2h = 1 m/h
so, the volume passing through an area per time equals linear velocity.

Then divide by 3600 to get the /h in stead of /s. (3600 seconds in 1 hour).
 
That's a calculation, not a conversion/transformation. I guess I shouldn't take the posts so literally.
 
FredGarvin said:
That's a calculation, not a conversion/transformation. I guess I shouldn't take the posts so literally.

Hehe... you probably shouldn't. On internet you can never be sure you're talking to a native English speaker (who can be expected to choose exactly the right words) or someone (like me) who is merely likely to choose the right words :D
 

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