Dispersion Model of Total Suspended Particulate from Tanjung Jati B Jepara Coal-Fired Power Plant’s Chimneys

The study of dispersion model of total suspended particulate at Tanjung Jati B Jepara coal-fired power plants chimney. The chimney is using coal as the fuel with 4 (four) unit with 4 X 660 MW capacity. In 2016, the wind direction was dominant from east- southeast with 5, - 8.8 m/s speed,, and in 2017,, the wind direction was dominant to the southeast with 5,7-8.8m/s speed. The analysis of dispersion is using AEROMOD model. The result of the dispersion model of total suspended particulate in two years from all chimney is expanding with the maximum ground level consentration increasing from 11.4 μg/m 3 to 19,5 μg/m 3 . The result of the dispersion is spreading till the residential area near the power plant.


Background
Development of coal-based energy is oen of significant implementation in energy policy to foster the diversification of energy development toward towards energy resilience and security. It is a wide range for aspect of energy resilience, in the perspective of engingeering, the resilience can be define such as how technology, mathematic model applied in energy producing of energy such as in electricity resilicen modelling [1]. In the social perspective, energy resilience explored the community such as how people use energy in their daily live, and how the concern sustainability of their energy [2]. In th coal base energy development, Combining aspect in energy resilience and security such as monitoring in environmental aspect, should be recorded routine as of behaviroal activity to ensure the energy development environmentally sound, not only in the engineering side but also in the community live.
One of the activities in energy sector is the provision of electricity for the society. It is globally dominated by energy conversion technology which in the form of fossil fuel, coal. Coal as solid fuel is hard to be mixed with air in the first stage of burning process, the process caused imperfect burning process the produce air pollutant [3]. The burning process of coal in the thermal power plant produces carbon dioxide (CO2), sulfur oxide (Sox), nitrogen oxide (NOx); another trace of CFC gases and air organic particulate such as fly ash and suspended particulate matter (SPM). CO2, NOx and CFC are greenhouse gases (GHGs). The high content of ash in low quality coal and the inefficient burning process are contributed to the air emission particle and another gases including the gas that cause greenhouse effect [4].
With the increasement of the population who live near the power plant of Tanjungjati B Jepara, unit 1,2,34, the residential area become at risk with the dispersion of dust particle. The transport ability of air that can transport dust particle influence human's health significantly [5,6,7].
The residential area near the power plant become at risk due to the dust particle. Receptor from emission that will enter the air ambient is influenced by the condition of climatology and not because of distance. The observation of desperation of dust particle can be seen in the study using AEROMOD VIEW model. [3].

Condition of TSP in Emission Source
Concentration data from total suspended particulate is recorded from CEMS (Continuous Emission Monitoring System). This research analysis data of the concentration in the two term of investigation, first one in the quarter of 2016 and the second one is the quarter of 2017. CEMS is a sampling system, conditioning, analytic component, and software which is designed to provide the measurement of pollutant concentration directly, real-time, and continuously by analyzing the representative sample from exhaust gas. [10,11].

Wind Rose
Climatology data in AERMODE mode which is used to modelled dispersion of Total Suspended Particulate is the direction and velocity data of air with measurement per hour in a year, and the modeled year is 2016 and 2017. The direction and velocity data of air is represented in the form of windrose analysis

Conclusion
With the result in 2016, with the direction of the wind was dominant to east-south east and 2017 with direction of the wind to southeast, it is resulted dispersion analysis using AEROMOD view can be seen till the residential area near the power plant. Dispersion in quarter resulted fluctuation dispersion total suspended particulate in two years from the emission of all chimney, wider and the concentration increase. The highest concentration is in R3 area (Jinggotan Village) 1 µg/m 3 -3 µg/m 3 .
Base on the standard quality of air ambient, concentration of dust particle in the residential area with the value under standard quality because the power plant conducted environment management with particulate removal. Precombustion and post-combustion control with the right technology approach provides the ability to reduce carbon and dust particles and other air pollutants that are responsible for the greenhouse effect.