Skripsi

ANALISIS EKSERGI DAN EKSERGOEKONOMI PEMBANGKIT LISTRIK TENAGA UAP KEBAN AGUNG PT.PRIAMANAYA ENERGY LAHAT SUMATERA SELATAN

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Penilaian

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Nowadays, dependence on electrical energy is getting increased. With increase the needs of electrical energy, the quality of available energy need to be improved so it can really be used wisely. Steam power plant is the system of power plant that using coal as the energy sources. The exergy analysis is very needed to evaluate the system’s performance and find the rate of exergy destruction. Exergy analysis method is better than energy analysis, because of the exergy analysis not only based on the first law of thermodynamics, but it’s combining the first and the second law of thermodynamics. Beside that, performance analysis from economic factor using exergoeconomic analysis is needed to calculate the cost of exergy destruction. Keban Agung 2x135 MW coal-fired steam power plant PT. Priamanaya Energy located at Kebur, West Merapi, Lahat, South Sumatera. This power plant consist of two units of power plant and each of them has 150 MW maximum capacity, but when collecting data, only unit 2 that operate because unit 1 was overhauling so that is not operating. The reference book used by author as based on material is “The Exergy Method of Thermal Power Plant” created by T.J. Kotas and “Thermal Design and Optimization” created by Bejan, et, all. And also some journals about exergy and exergoeconomic analysis of steam power plant as the concept in analyzing the system that author analyzed. Data collection method that used by author is direct observation to Keban Agung coal-fired steam power plant PT. Priamanaya Energy Lahat, there are boiler, steam turbine, condenser, condensate pump, deaerator, low pressure heater, high pressure heater, and boiler feed pump with 135 MW operation condition and with assumption the environment temperature is 27ºC. For the investment, operation and maintenance cost of the components based on the literature. Before analyze the exergy of each components, first find the flow rate of each state using mass balance. The result of exergy analysis that can be seen at table 5.4 has shown that the maximum rational efficiency was found at high pressure turbine which is about 96.902835%. It showed that the fuel exergy rate that enter the high pressure turbine’s system can be converted significantly by to product exergy in the from of output work that produced by high pressure turbine is 59.176054 MW with the rate of exergy destruction (irreversibility) is about 5.775836 MW. The minimum rational efficiency was found at boiler which is about 60.448445%, so this system is quite needs further studies on the cause of the problem. This is directly proportional with The rate of exergy destruction (irreversibility) that occurs in boiler, which is about 202.853270 MW. The exergoeconomic analysis that can be seen at table 5.7 has shown that the maximum cost of exergy destruction was found at boiler which is about 1884.190962 USD/h. But, the f factor of boiler is 77.869526%. It showed that the maximum of economic efficiency was found at boiler, because f factor is the scale which demonstrate how effective investment, operation, and maintenance cost of the machine with total cost of exergy destruction. Beside that, we also can found the that in the electrical generation process with 135 MW condition, the total cost of exergy destruction is about 4281.54369 USD/h and almost half of the total cost of exergy destruction found at boiler

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Availability

Inventory Code	Barcode	Call Number	Location	Status
1807001730	T5216	T52162018	Central Library (References)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T52162018

Publisher

Inderalaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2018

Collation

xxvi, 95 hlm. : ilus. ; tab. ; 28 cm

Language

Indonesia

ISBN/ISSN

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Classification

621.180 7

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Pembangkit Listrik Tenaga Uap
Prodi Teknik Mesin

Specific Detail Info

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Statement of Responsibility

DS

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