OP-II-3

OP-II-19gaimpulsegeneratorwateFig. 1. Experimental stand supplied with a two-chamber mixer (for gas and water) as well as16 horizontal nozzles (4 × 4) operated independently by means developed soft program.way towards the heating surface was studied. The typical distribution of water-gasconcentration profile in two dimensions is shown on the Fig 2.J/J 01,000,750,500,25- 1- 2Fig. 2. The distribution of water-gasconcentration profile in two dimensions:1 − vertical; 2 – horizontal. P W = 0.2 МPаи P G = 0.1 МPа, time of liquid valveopening T i = 3 ms, frequency F i = 1 Hz.J – reading of an instrument; J 0 – readingof an instrument onto axis of two-phasejet; L – size of heat-exchanger surfacein vertical and horizontal, m.0,000,00 0,25 0,50 0,75 1,00x / L, y / LNote the deviation of liquid phase concentration profile measured on the distanceL = 50 mm from the heat-exchanger’s surface was shown to be about 5%. Thedeveloped computer-controlled operation system was applied for experimental studyof evaporative cooling the heating surface. It was shown that this system permits totune effective heat exchange and provides effective cooling that is especiallyimportant for reactors performance in high exothermic chemical processes.References[1]. T. Li, K. Pougatch, M. Salcudean, D. Grecov. Numerical Simulation of an Evaporative Spray in aGas-Solid Crossflow, International Journal of Chemical Reactor Engineering, 2010, v. 8, p. 43.[2]. Nazarov A.D., Serov A.F, Terekhov V.I, Sharov K.A. Experimental study of evaporative coolingwith impulse spray. // Inzhenerno-Fizicheskii Zhurnal, 2009, V.82, №6, p. 147.[3]. Nazarov A.D., Terekhov V.I, Serov A.F. and K.A. Sharov K.A. An Experimental study of pulsedsprayimpingement evaporative cooling // 7 th International Symposium on Heat Transfer,(ISHT 08), October 26-29, 2008, Beijing, China.AcknowledgementsThe research work was supported by RFBR Grant № 08-03-91758-АF (Russia).135