A comparative study on suitable high voltage sources for ozone generation

This research is a comparative study on ozone generation via the use of various high voltage sources to improve efficiency of ozone generation. The high voltage used are AC power supply at the frequencies of 50 Hz, 20 kHz, 25 kHz and superimposed AC with DC source. The superimposed high voltage source has a HVDC superimposed with AC frequency of 20 kHz and 25 kHz respectively. The constructed ozone generator is based on a cylindrical concentric reactor that has the value of field utilization factor (eta*) of 9.45%. Ozone is generated by corona discharge phenomena principle. The results revealed that ozone generation by using only AC high frequencies alone yield great ozone concentration. On the other hand, a method of superimposed high voltage source produced low ozone concentration as well as low efficiency on energy consumption concerned. Therefore, in an application that needs ozone concentration below 600 ppm, the choice of suitable high voltage source is AC 50 Hz. For an industrial application that needs more concentration of ozone gas, the choice of high voltage with high frequency power supply is much more attractive due to the efficiency of ozone concentration and reasonable power consumptions.