'온실가스 꼼짝마'...배출량 측정 정확도 높였다<br /><br />South Korean researchers have developed a technique to more accurately measure greenhouse gas emissions at power stations and industrial sites.<br />Park Se-young has more.<br />Amid global efforts to reduce greenhouse gas emissions, ...South Korea has been operating a successful emissions trading system.<br />Since astronomical amounts of money can change hands based on an increase or reduction of emissions, ...accuracy and fairness in calculation are very important.<br />This is why South Korean researchers have developed a technology to measure the total amount of greenhouse gases emitted from chimneys at power stations and industrial sites.<br />"Based on hydrometer measurements and uncertainty models that reach international standards, it quantitatively evaluates the measurement uncertainty of the actual emission output."<br />The researchers found that flow velocity in the chimney has the greatest influence on determining the discharge flow rate.<br />They increased their measurement accuracy by directly measuring the emission concentration and the flow rate.<br />The accuracy of the discharge flow rate is based on precise measurements of the chimney's diameter, pressure, temperature, moisture and flow rate.<br />The researchers have confirmed a three-point-eight percent uncertainty rate of discharge flow rate measurements on-site ...with a confidence level of 95 percent.<br />"With accurate measurement, we can think about how to reduce emissions, monitor the situation and develop more technologies."<br />The research team's joint study with the U.S. and China has been published in the online edition of the scientific journal Metrologia.<br />Park Se-young, Arirang News.<br />
