Continuous emissions monitoring system

Case Study #3

Published in Tony Giampaolo, Gas Turbine Handbook: Principles and Practice, 2020

The plant maintains a continuous emissions monitoring system (CEM) to monitor the output criteria pollutants. This unit continuously samples stack gases and relays the results to a dedicated control room computer for calculating emissions in the format requested by the local air district.

How best management practices affect emissions in gas turbine power plants—An important factor to consider when strengthening emission standards

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Journal Information

Published in Journal of the Air & Waste Management Association, 2018

Jinghai Zeng, Min Xing, Min Hou, Glenn C. England, Jing Yan

As mentioned earlier, there were 12 in-use gas turbine power plants and two additional gas turbine power plants under construction at the time of the study (as of winter 2017, one of the new power plants has been put into operation). During July 2016, we conducted site visits and sampling for 11 of the 12 in-use plants. All the surveyed plants are combined cycle and cogeneration power plants without duct burners. All turbines use DLN technology to control emissions. All but one of the plants are equipped with SCRs. All plants are equipped with continuous emissions monitoring system (CEMS) to measure NOx, SO2, and PM. Six of the eleven surveyed in-use plants are also equipped with CEMS to measure ammonia slip. The basic information of the plants obtained from the survey and site visits is summarized in Table 6.

Continuous emissions monitoring system

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Case Study #3

How best management practices affect emissions in gas turbine power plants—An important factor to consider when strengthening emission standards