energy (tkk-2129)
DESCRIPTION
13/14 Spring Semester . Energy (TKK-2129). Instructor: Rama Oktavian Email: [email protected] Office Hr.: M.13-15, Tu. 13-15, W. 13-15, Th. 13-15, F. 09-11. Outlines. 1. Coal: Introduction. 2. Coal power plant. 3. Coal to chemical (CTC). 4. Recent status of coal technology. - PowerPoint PPT PresentationTRANSCRIPT
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Energy(TKK-2129)
13/14 Spring Semester
Instructor: Rama OktavianEmail: [email protected] Hr.: M.13-15, Tu. 13-15, W. 13-15, Th. 13-15, F. 09-11
![Page 2: Energy (TKK-2129)](https://reader036.vdocuments.net/reader036/viewer/2022062310/568166f4550346895ddb51f0/html5/thumbnails/2.jpg)
Outlines
1. Coal: Introduction
2. Coal power plant
3. Coal to chemical (CTC)
4. Recent status of coal technology
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Coal (Intro)Coal is conventional fossil fuel
Formation of Coal
Coal deposits are formed from plant material that died and was deposited in aswampy environment - low in O2 Anaerobic bacteria convert the organic material until environment becomes too acidic and the bacterial die - decomposition stops when the plants have been converted to peat Peat becomes buried at bottom of swamp Peat is transformed at high pressure and low temperature (< 200 °C) over ~300 million years to coal
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Coal (Intro)Coal is conventional fossil fuel
Formation of Coal
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Coal (Intro)Coal Mining
Surface MiningStrip Mining
Underground Mining
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Coal (Intro)Types of coal
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Coal (Intro)Types of coal
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Coal (Intro)Types of coal
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Coal (Intro)Chemical composition of coal
Source: http://f03.classes.colgate.edu/fsem037-coal/Coal/Default/composition_of_coal.htm
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Coal sourceEnergy sources in Indonesia
Coal
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Coal sourceEnergy sources in Indonesia
Coal
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Coal power plantProcess equipment
FeedwaterFeedwater used in a steam boiler to transfer heat energy
from the fuel burning area to mech. Energy of spinning steam turbine
BoilerRectangular furnace, pulverized coal is blown in from fuel
nozzles at 4 corners. The coal then burns quickly and forms a fireball at the center (seriously, a fireball!!!).
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Coal power plantProcess equipment
Steam Turbine Generator Is a series of steam turbines interconnected to each other
and then a generator
Steam CondenserSteam enters from the turbine generator and is pumped
into the bottom of the condenser, where pumps recycle the condensed steam from the feedwater
StackReleases process emissions.
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Coal power plantProcess diagram
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Coal power plantPros
CheapCheaper per unit energy than oil or natural gasWill continue to be an important global resource
AbundanceCoal is the world’s most abundant fossil fuelSufficient reserves for the next 250 years
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Coal power plantPros
EfficiencyLarger power plants are more efficient38% of the chemical energy is converted to energy
Safesafest fossil fuel to transport, store and use
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Coal power plantCons
Environmental issuesCoal-Fired Power Plants are the largest contributor of
hazardous air pollutants.
o Sulfur dioxide (SO2)o Nitrogen Oxide (NOx)o Carbon Dioxide (CO2)o Mercury
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