https://orcid.org/0000-0001-5277-7960
Figures & data
Figure 1. Method 5G dilution tunnel schematic (US Environmental Protection Agency Citation2000).
Figure 2. Lab-1 dilution tunnel configuration and computational grids.
Figure 3. Lab-1 Velocity magnitude contours (left) and the temperature contours (right) for stack inlet velocity and temperature of V=1.5 m/s and T=573K.
Figure 4. Lab-1 Turbulent intensity contours (left) and the particles concentration contours (right). Non-dimensional particle concentration at the stack inlet is assumed to equal one.
Figure 5. Lab-1 particle concentration profiles at the tunnel outlet. Non-dimensional particle concentration at the stack inlet is one.
Figure 6. Lab-2 dilution tunnel configuration with elbows.
Figure 7. Lab-2 tunnel elbow and reducer dimensions.
Figure 8. Lab-2 tunnel with elbows. Velocity magnitude contours at the midsection of dilution tunnel for V=1.5 m/s at stack inlet.
Figure 9. Lab-2 with elbows. Particle concentration contours at the midsection of the dilution tunnel. Here a uniform concentration at the stack inlet to the tunnel is assumed.
Figure 10. Lab-2 with elbows. Particle concentration profiles at the outlet. Here a uniform concentration at the stack inlet to the tunnel is assumed.
Figure 11. Experimental data for Lab-2 tunnel concentration and stack temperature.
Figure 12. Lab-2 configuration with two elbows. Velocity magnitude contours at the midsection of the dilution tunnel. Here the stack inlet velocity is V=6m/s.
Figure 13. Lab-2 configuration with two elbows. Turbulence intensity contours at the midsection of the dilution tunnel.
Figure 14. Lab-2 configuration with two elbows. Temperature contours at the midsection of the dilution tunnel. Here the stack inlet temperature is T=573k.
Figure 15. Lab-2 configuration with two elbows. Particle concentration contours at the midsection of the dilution tunnel. Here a highly non-uniform concentration at the stack inlet to the tunnel is assumed.
Figure 16. Lab-2 tee configuration.
Figure 17. Lab-2 configuration with elbow and tee. Velocity magnitude contours at the midsection of the dilution tunnel. Here the stack inlet velocity is V=6m/s.
Figure 18. Lab-2 configuration with elbow and tee. Turbulence intensity at the midsection of the dilution tunnel.
Figure 19. Lab-2 configuration with elbow and tee. Temperature contours for at the midsection of the dilution tunnel. Here the stack inlet temperature is T=573k.
Figure 20. Lab-2 configuration with elbow and tee. Particle concentration contours at the midsection of the dilution tunnel. Concentration at the stack inlet to the tunnel is highly non-uniform.
Figure 21. Comparison of particle concentration profiles at the tunnel outlet for the Lab-2 tunnels with elbow and tee. Red dots present the Lab-2 tunnel with two elbows (case 1), and the black line represents the Lab-2 tunnel with elbow and tee (case 2).
