The effect of roughness on aerosol deposition in tubes /
(,c,) and relative roughness (&/D). In addition, a method
| Main Author: | |
|---|---|
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
|
| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (,c,) and relative roughness (&/D). In addition, a method 0.000 I < F,/D < 0. 1. For the aerosol aerodynamic a maximum of 24% from the experimental data. The aerosol aerodynamic particle size of 10 nm and increased aerosol penetration, was encompassed in the non-dimensional and the subsequent aerosol penetration performance through are as follows: clean aluminum pipe and clean copper tube, below 85% for an internal roughness comparable to this coarse sandpaper pipe at a flow rate of 1 12 L/min. The coarse sandpaper pipe, F,/D = 0.065. Non-dimensional computational tools as well. correlation was used to show that the transport lines correlation yielded similar results for the larger data has shown that the aerosol penetration decreases dependent variables, non-dimensional particle relaxation time deposition velocity (v,) and modeled as a function of the experimental data except for outliers which deviated by Experimental measurements of simulated roughness within tubes F,/D = 10-4; fine sandpaper pipe, F,/D = 0.017- 12 helical flow rates of 56 to 112 L/min. For these conditions, L/min, the correlation remains within 10% of the L/min. The relative roughness for each of the tubes tested of 0. I < 'C, < I 00 and of 5 nm to 20 nm and a flow rate range of 28 L/min to 169.9 particle size of 5 nm and flow rates between 28 and 84 penetration in transport lines with internal roughness predicting the aerosol losses in sampling systems where presented should be a beneficial engineering tool for pressure drop has exceeded 7.5 mm Hg. The experimental pressure drop limit. The correlation for aerosol quantities were used to produce an empirical model relating ridges per linear centimeter copper tube, F,/D = 0.046; roughness is a concern. The correlation should be a roughness to aerosol penetration. The dependent variable, should be removed for cleaning or replacement once the than 10% with one outlier which deviated by 20% for the The empirical correlation fits the data over the range the model deviated from the experimental data by less these tubes were conducted for a aerosol particle size range transport line. transport lines for cleaning due to the roughness within the useful sub-model for aerosol penetration prediction was developed for estimating when to remove the sampling |
|---|---|
| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xv, 108 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |