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at the interface between the exposed and buried electrode. The minimum value of temperature measured was37◦Clocatedattheedgeofthedischargeregion.Dongetal.17 alsousedathermocoupletomeasurethe temperature of the dielectric panel versus operation time, a nearly linear increase in temperature of about 70 ◦C was observed after the actuator had been running for 14 minutes. This paper puts forward experimental study of anti-icing and deicing by AC-DBD plasma actuation. The goal is to evaluate plasma effectiveness for prevention or reduction of ice accretion. Firstly, the influence of the high voltage on the surface temperature of the actuator is measured by infrared thermal imaging in quiescent air circumference. Secondly, surface temperatures of the actuator during anti-icing and deicing period are measured on a cylinder model in icing wind tunnel. Thirdly, the power consumption is calculated and discussed. Finally, the conclusion is drown. . II. Experimental Setup A. Dielectric Temperature Mearsurements in Quiescent Air For surface temperature measurements test in the quiescent air for the several voltages. One long strip of SDBD plasma actuators is installed on the surface of a 20 mm thick ethoxyline flat plate. The plasma actuator consists of two 0.03 mm-thick asymmetric copper electrodes. A 0.33 mm thick Kapton dielectric separates the encapsulated electrode from the exposed electrode, the total height of the actuator is 0.40 mm. The widths of the exposed and encapsulated electrodes are 5 and 10 mm respectively. No gap or overlap is between the exposed and covered electrodes. The sketch of the actuator coincided with test coordinates is shown in Fig. 1 a), the origin point is located at the junction line of the exposed and covered electrode. The effective spanwise length of the actuator is 200 mm. The actuator is hand-made and directly attached to the ethoxyline flat plate surface with no allowance. The actuator is connected to a high-voltage AC source (model CTP-2000K by Nanjing Suman Co.) that can provides about 30 kV peak-to-peak voltage sinusoidal excitation and 10 kHz center frequency to the electrodes. a) b) Figure 1. Surface temperature measurements test in the quiescent air. a) Actuator sketch. b) Infrared test layout. Surface temperature measurements are carried out using a thermal camera FLIR Systems T660 in the 7.5-14 μm spectral range with a sensitivity of within 0.02 ◦C at room temperature. The highest accuracy for the T660 is ±1% of reading. The temperature range is from -40 ◦C to 20,000 ◦C. The camera has a 640 × 480 resolution and 30 Hz video frame rate. The working distance of the camera is 500 mm with a 400 × 30 mm field of view, as shown in Fig. 1 b). For each case studied, the experimental data is recorded with the same pattern: initially the actuator is not operated during 2 s, then it is run for a duration of 30 s. Seven 3 of 14 American Institute of Aeronautics and Astronautics Downloaded by NORTHWESTERN POLYTECHICAL UNIV. on June 23, 2016 | http://arc.aiaa.org | DOI: 10.2514/6.2016-4019PDF Image | Experimental Study of Deicing and Anti-icing on a Cylinder by DBD Plasma Actuation
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