A Method to Measure Emissions from Dryers with Diffuse Leakages 2—Sensitivity Studies

ABSTRACT

Measurements of VOC emissions from dryers have several known difficulties. An earlier published method to measure emissions of VOC from dryers deals with problems associated with diffuse emissions and high moisture content of the drying medium. ^[1] In this article, a different calculation path are used and the influence of the main parameters are studied in more depth. For one experiment, confidence intervals for all of the parameters are calculated. Experimentally induced uncertainties are found to be more important than a theoretically important parameter. Suggestions are made on how to increase accuracy.

Keywords:

• Drying
• VOC
• Analysis

ACKNOWLEDGEMENTS

Thanks are due to Bengt Månsson, Ola Holby, and Jan Forsberg, Karlstad University Sweden, for constructive comments.

Notes

¹std=(0.005 g)−(−0.005 g)/√12=2.886 mg.

^a std = [(S _yy  − S _xy ²/S _xx )/(N = 2)]^0.5; CI = b + t _(N−2)*S/S _xx ^0.5.