석탄화력발전소 이산화탄소 배출량 산정을 위한 연료분석법과 연속측정법의 특성 연구

Abstract

본 연구에서는 500 MW급 석탄화력발전소를 대상으로 동일기간에 연료분석법 및 연속측정법을 사용하여 이산화탄소 배출량을 산정하고 각 방법의 특성을 알아보았다. 연료분석법은 산정방법 중 배출량이 가장 낮게 산정되는 것을 확인하였다. 이는 순발열량이 낮게 분석되기 때문으로 저열량탄을 사용하는 경우 연료분석법을 활용하는 것이 유리하다. 또한 입하탄 보다 소비탄을 시료로 사용하였을 때 배출량이 낮게 산정되는 특성을 보였다. 하지만 차이는 2% 미만으로 미미하여, 시료 분석 인력 및 장비가 한정된 현 여건에서는 입하탄을 연료분석 시료로 사용하여도 적정하다고 판단된다. 연속측정법은 연료분석법 대비 배출량이 다소 높게 산정되지만 국내외 통용되는 계수를 사용한 배출량보다는 낮게 산정된다. 또한 안정적인 이산화탄소 농도에 비해 유량은 편차가 큰 특성이 있다. 따라서 석탄 탄종 변화로 연료분석법에 의한 산정량이 증가할 경우, 유량 측정방법을 보완하여 사용한다면 배출량 산정 시 유리할 것이다.|This study calculates carbon dioxide emissions by using the fuel analysis and the continuous measurement over the same period from 500 MW-class coal-fired power plants and evaluates the characteristics of each method. The emissions using fuel analysis was the lowest calculation of the emissions calculation methods. This is because a low net calorific value analysis. When using the low calorific coals is beneficial to utilize the fuel analysis. Also it showed the characteristics of the lower calculation emissions when used the as fired coals than the as received coals. However, the difference is negligible to less than 2%. Sample analysis personnel and equipment is limited in the present circumstances, it is also deemed appropriate by using the as received coals with sample coals to be fuel analyzed. Continuous measurement is calculated somewhat higher emissions than the fuel analysis, and calculated a lower emissions than calculation method using domestic emission factors. In addition, compared to stable concentration of carbon dioxide, flow rate has the characteristic deviation is larger. Thus, if you increase the amount of calculation by the fuel method as coals change, to compensate for the flow rate measurement method is beneficial to use the continuous measurement.; This study calculates carbon dioxide emissions by using the fuel analysis and the continuous measurement over the same period from 500 MW-class coal-fired power plants and evaluates the characteristics of each method. The emissions using fuel analysis was the lowest calculation of the emissions calculation methods. This is because a low net calorific value analysis. When using the low calorific coals is beneficial to utilize the fuel analysis. Also it showed the characteristics of the lower calculation emissions when used the as fired coals than the as received coals. However, the difference is negligible to less than 2%. Sample analysis personnel and equipment is limited in the present circumstances, it is also deemed appropriate by using the as received coals with sample coals to be fuel analyzed. Continuous measurement is calculated somewhat higher emissions than the fuel analysis, and calculated a lower emissions than calculation method using domestic emission factors. In addition, compared to stable concentration of carbon dioxide, flow rate has the characteristic deviation is larger. Thus, if you increase the amount of calculation by the fuel method as coals change, to compensate for the flow rate measurement method is beneficial to use the continuous measurement.