Impingement cooling system for a large surface: multi-jet pulse spray
A.F. Serov, A.D. Nazarov, V.N. Mamonov, N.B. Miskiv, P.N. Karpov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk. Russia
Keywords: cooling of large flat surfaces, impingement spray, coolant flow rate, air coflow, integral heat trans-fer coefficient
Abstract
The paper presents the experimental study on the influence of parameters of a multi-jet impingement spray on the cooling efficiency for a large flat surface. The study is based on common principes for engineering systems with high-rate heat and mass transfer using the impinging jets; this enables the draining of hogh heat loads with a low flow rate of the coolant. These results, along with using the Nusselt and Reynolds criteria, give the approach for estimating the aggregated efficiency of heat transfer coefficient while cooling with a multi-jet impingement spray.
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