Piezoelektrik etki ile sentetik jet teknolojisi kullanilarak atomizör tasarimi ve analizi

In this thesis, atomizer design and experimental analysis will be focused on using piezoelectric effect synthetic jet technology. Atomizers are devices used to convert liquid into small particles and are widely used in many industrial applications. The reverse piezoelectric effect is the ability of a material to convert electrical energy applied to mechanical energy, and this property can be used in the working principles of atomizers. Synthetic jet technology, on the other hand, is a method used to atomize the liquid by creating a high-speed gas jet. In this thesis, the effect of orifice diameter, void volume and the amount of water to be atomized, which have an effect on the atomization performance of synthetic jet technology, will be evaluated. In the experiments, water atomization was investigated in 20-microliter and 30-microliter volumes using a micropipette. By moving the piezoelectric sensor inside the actuator produced using 3D printer technology up and down, the synthetic jet created at the actuator output creates both suction and blowing flow. In this thesis, the synthetic jet atomizer design was evaluated with 36 experiments. The effect of the diameter of the orifice, the effect of the height of the inner volume, the effect of the volume of the water droplet, and the behavior of the water drop on the inner and outer surfaces were examined in the design. Each effect and behavior studied is related to each other. It has been concluded that a change made in one of the specified parameters for the synthetic jet atomizer to reach optimum conditions should also be changed in another parameter for the optimum value. When the frequency response function analysis measurement results are examined, it has been measured that the frequency values that should be applied to the system have changed. However, for the purpose of the study, the frequency and amplitude values were kept constant in all experiments. Since the experiments were performed at 50 V amplitude and 2,800 kHz frequency, efficient results could not be obtained for some designs. However, when these designs are adjusted to the appropriate amplitude and frequency, the synthetic jet atomizer reaches optimum conditions and provides highly efficient flow. In conclusion, this thesis will cover atomizer design and analysis using the piezoelectric effect and synthetic jet technology and will present new methods to improve atomizer performance. It is expected to make valuable contributions to the more effective and efficient use of atomizers in industrial applications.