Spray cooling characteristics of a flow blurring injector are investigated experimentally. Variations of the flow rates and the distance from the nozzle to the test surface are examined in terms of the cooling heat flux. The liquid flow rate is varied from 200 to 1200 mL/h. The effect of the air flow rate from 6 to 18 L/min is also studied and heat transfer coefficients are obtained. Depending on different effective parameters, the maximum cooling heat flux is measured between 61 and 193 W/cm². Owing to formation of fine droplets at higher air flow rates, the maximum cooling heat flux is improved by about 60%. The present data is generated for a flow blurring type of injector to have four major advantages simultaneously compared to the previous twin-fluid injectors. These advantages can be listed as; having fine droplets using low liquid flow rates, low liquid and gas pressures, relatively large orifice diameters, and a simple design. Here, with the mentioned privileges, it is demonstrated that the same maximum range of heat flux is achieved by about one order of magnitude less liquid consumption rate than previous studies.

实验研究了流量模糊喷射器的喷雾冷却特性。根据冷却热通量检查流量的变化以及从喷嘴到测试表面的距离。液体流速从200到1200 mL / h不等。还研究了空气流量从6升至18升/分钟的影响，并获得了传热系数。根据不同的有效参数，测得的最大冷却热通量在61至193 W / cm ^2之间。由于在较高的空气流速下会形成细小液滴，因此最大冷却热通量提高了约60％。与先前的双流体喷射器相比，本数据是针对流动模糊类型的喷射器生成的，同时具有四个主要优点。这些优点可以列为：使用低液体流速，低液体和气体压力，较大的孔直径和简单的设计即可形成细小液滴。在此，以所提到的特权，证明了相同的最大热通量范围比以前的研究减少了大约一个数量级的液体消耗率。