An experimental and theoretical research is conducted, focusing on the thermal behavior of hot, non-porous, low-conductivity surfaces during the cooling transient induced by single- and multi-droplet boiling water systems. The research is aimed at modeling the cooling effect induced on a hot solid surface by sprinkler-generated droplets. The long term objective of this study is the construction of a model for the prediction and optimization of the performance of sprinkler-based fire-extinguishment systems. in this paper, the results of a series of experimental tests on single- and multi-droplet boiling systems are presented and discussed. The effect of the boiling onset on dropwise cooling is investigated, and the possibility of improving spray cooling efficiency is examined.

The influence of nucleate boiling regime on dropwise cooling of low-conductivity surfaces / Tartarini, Paolo; Muscio, Alberto. - STAMPA. - II(2000), pp. 495-506. ((Intervento presentato al convegno XVIII Congresso Nazionale sulla Trasmissione del Calore tenutosi a Cernobbio (CO), Italia nel 28-30 giugno 2000.

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