velocity.fpm: Calculate Air Velocity in fpm

In nadlerphd/rEHS: A set of tools for EHS management

Calculate Air Velocity in fpm

Description

Airflow velocity is used to capture contaminants and overcome cross-drafts, transportation of contaminants through the duct, and balancing of “losses” in the system and in the discharge of the contaminant from the stack. This is described as the “magnitude” of the system, which is a function of the velocity pressure.

Usage

velocity.fpm(velocity.pressure.as.h2o)

Arguments

velocity.pressure.as.h2o

pressure in the direction of flow necessary to caus the air at rest to flow at a given velocity

Examples

## velocity pressure of 0.2″
## velocity.fpm(.20)
## "Velocity is 1791.09 fpm"

nadlerphd/rEHS documentation built on Feb. 3, 2025, 4:48 p.m.