Fire Safety Science Digital Archive

This report described measurements of the transmission of radiation through water sprays from two typed of nozzle. The transmission for a nozzle water pressure of 50 lb in^-2 was appreciably lower than that for a pressure of 6.5 lb in^-2 even for comparable water flows. A comparison of the results with those of Seekamp (4) and Schuler (5) suggests that transmission depends markedly on nozzle design and that with certain nozzles a water curtain of low transmission could be produced for water flows comparable with those of sprinkler installation.