Papers by Keyword: Electrostatic Technology

Abstract: The technology of high voltage electrostatic field has been used for food processing in recent years, especially for thawing and freezing of food. However, the application of this technology on food cooking is still in the initial development stage. Although there are a little applications of food cooking using high voltage electrostatic field in some restaurants in Taiwan area, the corresponding study is very scarcely. This study describes mechanism, principles and devices of electrostatic cooking of food, as well as results of some electrostatic cooking experiments. Obviously, the high voltage electrostatic technology can be beneficial for food cooking, and the effects of sanitery and health of electrostatic cooked food are important for human body.

Abstract: A new electrostatic dispersion device was designed to reduce the agglomeration of fine powder in the air. This device is using the repulse force between particles which charged the same charge to prevent the particles from reuniting. The effects of charge voltage, particle size, the distant between electrode, and moisture content on the dispersion degree of the powder are discussed. The invalidation time of the electrostatic dispersion is also highlighted in the paper. The results show that the electrostatic dispersion is an effective method for the fine powders in the air. The charge voltage is the most important parameter for the dispersion. Middle size particle got best dispersion. When the distance between the electrodes is 24cm, the dispersion degree reaches the maximum. The humidity of the powder not only affects the charge of the powder, but also affects the dispersion degree of the powder.