time.interval: Calculate Time Interval in Minutes for New Concentration of...

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

Description

is used to determine the time period for a concentration buildup that will occur

Usage

time.interval(volume.cf, flow.rate.cfm, contaminant.generation.rate.cfm, concentration.ppm)

Arguments

volume.cf	volume of room or enclosure (cubic feet)
flow.rate.cfm	flow rate of the air (cfm)
contaminant.generation.rate.cfm	rate of generation of contaminant (cfm)
concentration.ppm	concentration of the contaminant to predict (ppm)

Examples

## time.interval(75000, 2500, 1.4, 175)
## 75000 is room volume
## 2500 is air flow rate
## 1.4 cfm of contaminant generation
## "Time interval is 11.24 minutes for 175.0 ppm"

dwnadler/rEHS documentation built on Dec. 20, 2021, 2:16 a.m.