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Presentation (PDF) - US Environmental Protection Agency

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Cost Impact<br />

SF 6 vs. SO 2<br />

Number of machines 3<br />

Running operation [days / year] 300<br />

SF 6 SO 2<br />

Running operation [hours / day] 24<br />

Flow rate of gas to each machine [Nl / min] 10 10<br />

Concentration of gas [%] 0.4 0.7<br />

Price [NOK / kg] 270 33<br />

Volume / weight [Nl / kg] 153 350<br />

Consumption of gas [kg / year] 339 259<br />

Cost / year [NOK] 91500 8500<br />

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