Air Pollutant Emission Abatement of the Fossil-Fuel Power Plants by Multiple Control Strategies in Taiwan

Abstract

This study is an investigation of air pollutant emission abatement in the electricity generation sector from fossil-fuel power plants in Taiwan in 2014 and 2018. PM concentrations are determined by the results of regular tests, while SOx and NOx are determined by continuous emission monitoring systems (CEMS) of flue gas from power plants. The results indicate that electricity generation from fossil-fuel power plants increased by 13.8% from 2014 to 2018. However, emissions of air pollutants from fossil-fuel power plants declined during this period. The results indicate that the annual emissions of SOx, NOx, and PM were 40,826, 59,196, and 5363 tons per year (TPY), respectively, in 2014. The emissions decreased to 30,097 TPY (28% reduction) for SOx, 48,530 TPY (18% reduction) for NOx, and 4496 TPY (16% reduction) for PM in 2018. The ensemble mean values of each air pollutant emission factor also decreased significantly. SOx emissions decreased from 0.2443 to 0.1583 mg/kWh (35% reduction). NOx emissions decreased from 0.3542 to 0.2552 g/kWh (28% reduction). PM emissions decreased from 0.0321 to 0.0236 mg/kWh (26.5% reduction). The results indicated that phasing out of high-pollutant generating units and switching the fuel from coal to natural gas could abate the emissions of SOx and PM, and NOx emissions could be abated by introducing control devices. In addition, new power generation sectors will be constructed and equipped with ultra-low emission control systems to reduce air pollution and create a cleaner and healthier electricity generation system in Taiwan.

Intelligent planning of controllers for improved resilience in multi-area system involving nuclear power

“…In this section an environmental analysis is done for 1000MWH generated energy from proposed test system and conventional thermal power plant with the help of graphs and table using emission data from 17 – 19 . Harmful emissions are calculated using Eqs.…”

“…After going through detailed research survey, it is observed that frequency response under sudden loading can be improved further and hence, In this paper, a detailed analysis of frequency response with proposed controller of 4-FOPID-PSO units fitted in test system having nuclear power plant as a source is done and compared with other controllers fitted with test system under different loading conditions. In this paper, an environmental analysis in terms of harmful emission is done using data from 17 – 19 .…”

An Efficient Method for Heat Recovery Process and燭emperature燨ptimization

“…In addition, the high temperature inlet flue gas is not conducive to the progress of SO 2 absorption reaction in the desulfurization tower [10][11][12][13], and the water in the limestone slurry in the desulfurization tower evaporates a lot [14]. Therefore, reducing the flue gas temperature at the inlet of the desulfurization tower can improve the desulfurization performance of the desulfurization system and achieve energy saving and consumption reduction [15][16][17][18][19][20][21].…”