KIEE International Transactions on Electrophysics and Applications

대한전기학회 (The Korean Institute of Electrical Engineers)
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Temperature Dependent Characteristics of a Combined Discharge Type Ozonizer (CDO)

  • Fayzur Rahman (Dept. of Electrical & Electronic Engineering, BIT University) ;
  • B. J. Chun (Dept. of Electrical Engineering & Computer Science, Yeungnam University) ;
  • Lee, K. S. (Dept. of Electrical Engineering & Computer Science, Yeungnam University) ;
  • Lee, D. I. (Dept. of Electrical Engineering & Computer Science, Yeungnam University)
  • 발행 : 2003.06.01
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초록

A combined discharge type ozonizer was designed and manufactured. The increase or decrease of temperature greatly influences the characteristics of ozone concentration ( $O_{3con}$), ozone generation ( $O_{3g}$) and ozone yield ( $O_{3Y}$) of a discharge type ozonizer. The characteristics of ozone concentration, ozone generation and ozone yield rate were investigated by varying the gas flow rate (Q), the discharge power ( $W_{d}$) and the temperature (T). At T=25[$^{\circ}C$] the values of $O_{3con}$ were found as 5632, 4200, 2500 and l800[ppm] at Q = 1, 2, 4 and 6[l/min] respectively. At the same temperature the corresponding values of $O_{3g}$ were found as 662, 988, 1176 and l270[mg/h] and those of $O_{3Y}$ were found as 67, 102, 119 and 135[g/kWh] respectively. When the temperature is decreased to -50[$^{\circ}C$], the values of $O_{3con}$ were found as 9000, 6700, 4000 and 2800[ppm] respectively at Q = 1, 2, 4 and 6[l/min]. At the same value of temperature the corresponding values of $O_{3g}$ were found as 1220, 1576, 1882 and 2050[mg/h] and those of $O_{3Y}$ were found as 120, 159, 188 and 202[g/kWh] respectively. Hence as the temperature was decreased from 25 to -50[$^{\circ}C$], the efficiencies of ozone generation were increased by 79, 55, 58 and 49[%] respectively at Q = 1, 2, 4 and 6[l/min].]. 6[l/min].].

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