THERMOECONOMIC FEASIBILITY STUDY OF MODIFICATION SUBCRITICAL POWER PLANT TO ULTRA-SUPERCRITICAL WITH A CAPACITY OF 660 MW
Ultra-supercritical (USC) technology power plants are widely applied and still being developed in the world. Thermal Efficiency of USC is greater than subcritical (Sub-C) and environmentally friendly. However, the construction of this power plant requires large investment costs because it needs l...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/43722 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Ultra-supercritical (USC) technology power plants are widely applied and still being
developed in the world. Thermal Efficiency of USC is greater than subcritical (Sub-C)
and environmentally friendly. However, the construction of this power plant requires
large investment costs because it needs land requirement and new facilities. While in
Indonesia, subcritical power plants still dominate and some are relatively old. The
productivity will decrease with the duration of operating time. In addition, combustion
emissions are also difficult to control and give serious problem to environment. The
solution to these conditions is modification of the subcritical power plant to ultrasupercritical.
The main component that is modified is the Sub-C boiler and several
other additional components.
This research aims to conduct thermoeconomic feasibility study of M-USC (Modified
Ultra-supercritical) and N-USC (New Ultra-supercritical) with a capacity of 660 MW.
thus, the results of this study can determine the type of power plant that is most feasible
to build. The economic parameters being compared are LCOE (Levelized Cost of
Electricity), IRR, NPV, BCR, PP. LCOE consist of investment costs, operating and
maintenance costs, and fuel costs as a function of time. Thermodynamic simulations
are also carried out to determine the characteristic parameters of each power plant
that used for economic simulation calculation. Simulation results show that M-USC is
better and economically feasible to be chosen with LCOE, IRR, NPV, BCR and PP are
5,16 cent US$/kWh, 13,33%, 114.791.081 US$, 3,47 and 7 years 2 months. In addition,
sensitivity analysis is conducted on M-USC with results that the USC boiler and fuel
costs will give a large impact on the economic parameters.
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