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Home Physics Ozone Generators With The Barrierless Gas Discharge

Ozone Generators With The Barrierless Gas Discharge

Description

The ozone application market has been strongly increasing during last decades. Interest to ozone technologies is caused by unique properties of ozone as strong oxidizing and bactericidal agent. Besides, ozone technologies are environmentally friendly and this fact increases consumer attraction for application of ozone in the production of goods, servicing and MEDICINE.

The key device for the ozone technology is ozone generator. At the present, a silent or barrier discharge for ozone generators are most widely used. At the same time, the expansion of areas for ozone application makes demand for development of alternative methods for ozone generation. One of the advanced methods is a barrierless discharge.

In the NSC KIPT a new ozone generators with barrierless electrode system and high-voltage pulsed power supply have been developed. The barrierless ozone generators have a high reliability due to elimination of the dielectric barrier from discharge gap. It excludes the damage of electrode system in case of accidental spark breakdowns. The barrierless ozone generator has significantly low gas-dynamic resistance because the discharge gap is a wider. Besides, the electronic control system of the ozonizer improves operating characteristics of the ozone generator. The advantage of the barrierless ozone generator is a possibility of stable operation by using the atmospheric air as a feed gas. The barrierless ozone generators have a modular construction that is an assurance of serviceability and allows to vary the ozone productivity in wide range 4 – 50 g O3 per hour.

The parameters of the ozone module are the following:

  • Ozone production feed gas is an atmospheric air – 4 g/h.
  • Ozone concentration –––––––––––––––––––––––– 4g/mі
  • Feed gas ––––––––––––––––––––––––––––––––– atmospheric air
  • Feed gas flow rate –––––––––––––––––––––––––– 1 mі/h
  • Power consumption ––––––––––––––––––––––––– 350 watt
  • Supply voltage ––––––––––––––––––––––––––––– 220±20 Volt
  • Cooling ––––––––––––––––––––––––––––––––––– air
  • Ozone production on dry air/oxygen –––––––––––– 8/12 g/h

Innovative Aspect and Main Advantages

The main innovation of the developed technology is the use of the barrierless electrode system for plasma chemical reactor and special current conductive coating for the anode surface. The coating is not destroyed under impact of plasma and aggressive radicals which are synthesized when the reactor is operated on atmospheric air. It provides the stable long-term operation of ozone generator.

Thus the barrierless ozone technology has the following advantages in comparison with barrier ozonizers which are commonly used for the ozone generation:

  • reliability of operation at presence of nitrogen and water vapour, operation on atmospheric air;
  • reducing of expenses for air preparation ;
  • the use of high-efficient high-voltage power supply with the efficiency no less than 90%;
  • low gasdynamic resistance of plasmachemical reactor;
  • the elimination of dielectric barrier from discharge gap;
  • the electrode system has a firmness to the random electrical breakdown;
  • the simplified construction of plasma chemical reactor, the weak accuracy requirement on manufacturing of reactor components.

Areas of Application

The most perspective market segments for a new barrierless ozonizers are connected with water treatment, namely the potable water preparation, preparation of water in pools and spa, sewage treatment, disinfection by ozonized water of packing materials, vegetables and fruit.

The barrierless ozone generators can be applied in agriculture for presowing seed treatment what allow to increase the crop yield on 10-15%. The perspective areas for ozone application are a technology of grain refreshment, deodorization and disinfecting of air in refrigerator systems and air-conditioning systems, disinfection of operating-rooms and other medical premises and equipment.


Fig. 1 Ozone generators with barrierless electrode system.

Stage of Development

The development works for barrierless ozone generator have been fulfilled completely. The samples of ozone generators are available for demonstration, ozone generators have been installed at the potable water preparation systems and at the water purification systems of the pools for 5 years. At the present time, the preproduction batch of the barrierless ozone generators are realized at Ukrainian market. The barrierless ozone generators have been protected by the patents of Ukraine and USA.

Contact Details

Golota Vladimir Ivanovich, Dr.
Organization: Organization: National Science Center “Kharkov Institute of Physics and Technology”
Address: Akademicheskaya, 1, Kharkov 61108, Ukraine.
+38 057 335-3926, Fax: +38 057 335-3926
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Web site: www.kipt.kharkov.ua

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