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| Titel: |
Gas-Borne Liquid Flow Rate in a Venturi Scrubber with Two Different Liquied Injection Arrangements |
| Auteur: |
Koehler, John L. M. Feldman, Henry A. Leith, David |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 7 (1987) nr. 1 pagina's 15-29 |
| Jaar: |
1987 |
| Inhoud: |
Although current theory for venture scrubber efficiency assumes that gas-borne liquid flow rate, QL, remains constant throughout the scrubber, it actually varies as liquid evaporates, condenses, atomizes from the scrubber wall, or deposits to the wall. Experiments were conducted to measure QL at various locations in a venture scrubber. Water was injected in two ways: (1) radially inward through a circumferential slot at the throat inlet, and (2) axially downward through a centered pipe at the converging section inlet. For each liquid injection arrangement, QL was determined by measuring the water in the gas at 180 points in the venturi, under each of nine operating conditions defined by varying liquid-to-gas ratio and gas velocity in the throat. For radial injection, relatively little injected water was found to be gas borne throughout the scrubber, whereas for axial injection, most or all injected water remained in the gas. For both liquid injection arrangements, the radial distribution of gas-borne liquid varied consistently with axial position; under every operating condition, the concentration of gas-borne liquid in the throat was highest near the injection point, whereas by the end of the diverging section, it was highest near the centerline. A mathematical model is proposed to explain the observed axial variations in gas-borne liquid flow rate. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 11 gevonden artikelen
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