Large volume water sprays for dispersing warm fogsA new method for dispersing of warm fogs which impede visibility and alter schedules is described. The method uses large volume recycled water sprays to create curtains of falling drops through which the fog is processed by the ambient wind and spray-induced air flow; the fog droplets are removed by coalescence/rainout. The efficiency of this fog droplet removal process depends on the size spectra of the spray drops and optimum spray drop size is calculated as between 0.3-1.0 mm in diameter. Water spray tests were conducted in order to determine the drop size spectra and temperature response of sprays produced by commercially available fire-fighting nozzles, and nozzle array tests were utilized to study air flow patterns and the thermal properties of the overall system. The initial test data reveal that the fog-dispersal procedure is effective.
Document ID
19870026574
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Keller, V. W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Anderson, B. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Burns, R. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Lala, G. G. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Meyer, M. B. (New York, State University Albany, United States)