Calculating Air Compressor Size for a Manufacturing Plant Study"

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The discussion focuses on sizing an air compressor for a new manufacturing plant, highlighting confusion over unit conversions in the calculations. A specific equation was referenced, raising questions about the units used, particularly the "450" constant. It is emphasized that the equation's effectiveness relies on consistent units, which should be clarified in the source material. Participants suggest that the constant may include a units conversion ratio that needs to be understood for accurate application. Overall, understanding the units and constants in the equation is crucial for proper air compressor sizing.
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I am in a study of sizing air compressor for a new manufacturing plant ,I googled for some calculation and i got the problem shown in the attachment .i have one doubt how they got the unit bar in the final answer ...?
 

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That's the kind of equation that only works with a given set of units. The book must mention somewhere what these units are (like ##l## must be in meters).
 
What is not defined is the units for the "450" constant value in the equation. Many times this type of constant includes in its value some type of units conversion ratio.
 

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