ANALISIS EKSERGI PADA PEMBANGKIT LISTRIK TENAGA UAP
Until 2012, steam power plant supplies 44.02 % of national electricity demand. Most of steam power plants use fossil fuels as an energy source that are not renewable and limited. The use of fossil fuels also generates greenhouse gases. Exergy evaluation is made based on the second law of thermodynam...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2013
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/124560/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=64713 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Until 2012, steam power plant supplies 44.02 % of national electricity
demand. Most of steam power plants use fossil fuels as an energy source that are
not renewable and limited. The use of fossil fuels also generates greenhouse gases.
Exergy evaluation is made based on the second law of thermodynamics. It is a
method that can be used in design, evaluation, optimization, and construction of
thermal power systems. Exergy analysis can be used to determine the amount and
location of plant components� inefficiency. Exergy analysis on power plant is
required to identify opportunities in each plant component that can be used to
perform optimization in power plant components.
In this research, a power plant system is modelled using Cycle Tempo. The
model consists of fuel and vapor cycle .The model is simulated to get the exergy
efficiency value and to count the exergy losses of system�s main components. The
values obtained are used as a basis for recommendations on power plant
optimization.
The net exergy efficiency of the modeled power plant is 35.92%. The results
showed that 87% of the total exergy losses occurred in the system is mainly
contributed by three components which are boilers, combustion chamber, and
reheater. High exergy losses is occurred in boiler with the amount of 356 MW,
combustion chamber with the amount of 218 MW and reheater with the amount of
206 MW. Optimization can be performed on those three components to suppress its
exergy losses but based on consideration of technological aspects, the possibility to
optimize the boiler and reheater is very small while optimization on the combustion
chamber is still possible to do |
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