Fire Safety Science Digital Archive

This note describes a study of the distribution of water falling on an area of floor beneath an array of four sprinklers mounted below a ceiling, each at the corner of a square of side 11.4 ft. The main object of the study was to compare the distribution obtained by adding the independent contributions of the four individual sprinklers, with the distribution obtained by allowing the water from all four sprinklers to contribute simultaneously to the water pattern at floor level. The primary object of the work was to compare the rate obtained from the sum of the individual sprinkler contributions with the rate applying when all four sprinklers were contributing to the flow simultaneously, in order to establish whether the individual results were additive.