ANALISIS EKSERGI DAN EKSERGOEKONOMI PEMBANGKIT LISTRIK TENAGA PANAS BUMI PT. PERTAMINA GEOTHERMAL ENERGY AREA ULUBELU LAMPUNG

HIDAYATULLAH, ERLANGGA and Santoso, Dyos and Yanto, Joni (2018) ANALISIS EKSERGI DAN EKSERGOEKONOMI PEMBANGKIT LISTRIK TENAGA PANAS BUMI PT. PERTAMINA GEOTHERMAL ENERGY AREA ULUBELU LAMPUNG. Undergraduate thesis, Sriwijaya university.

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Abstract

Geothermal energy is one of the very abundant renewable new in Indonesia. Development and optimization in the use of environmentally friendly of course will be very positive impact for the industry in Indonesia, especially in the field ofpower general ion. Geothermal power plant is much better than the source of the energy that comes from the fossils and coal, because emissions from the rest of a very small generation than conventional plants. This study examines and evaluates the performance of one of the geothermal power plant in Indonesia, namely Geothermal power plant PT. Pertamina Geothermal Energy Ulubelu Area of Lampung Units 3 and 4. Exergy and exergoeconomic methods of analysis used in the study to show the destruction of exergy andfees on all of its components are examined. The plant system is examined it is single flash in which consist of 2 identical units. The components analyzed include 3 primary separator, 2 scrubbers, 2 steam turbines, and 2 condensers. This plant has several production wells (cluster). Ofsome of the wells are then streamed toward the primary separator 3. A third of the separator, generate steam pipe 3 then all three are linked. Three pipes the steam is divided into 2 main pipeline, where each of the pipes to be used as power plant units 3 and 4. Further the flow of steam into the scrubber, it functions as a filter content of grains of water or dirt so that the fluid towards the turbine completely in conditions of diy steam. The fluid entering the turbine is then expanded to produce work in the form ofturbine shaft rotation. The turbine shaft is connected to the generator shaft so that the generated electrical energy. Evaluation of the plant starts from a steam turbine unit 3, this component produces a working turbine of52581.737 kW, with the rational efficiency of 90.228%. These components destroy the exergy as much as 6545.451 kW by a factor f 29.909% and the loss cost as much as USD 389.062/h. Next on the steam turbine unit 4, this component produces a working turbine of 45513.301 kWt with the rational efficiency of 89.884%. These components destroy the exergy as much as 5738.949 kW by a factor f32.930% and the loss cost as much as 338.139 USD/h. After it resumed the evaluation on the condenser unit 3, this component has the rational efficiency of 43.621%. xvn These components destroy the exergy as much as 7826.499 k W by afactorf 1.981% and the loss cost as much as 465.207 USD/h. For the condenser unit 4, this component has the rational efflciency of 42.650%. These components destroy the exerg)> as much as 7378.244 kW by a factor f 2.117% and the loss cost as much as USD 434.726/h. Proceedon the scrubber unit 3, this component has the rational efflciency'of99.393%. These components destroy the exergy as much as 422.870 kW by a factor f 9.381% and the loss cost as much as 25.135 USD/h. whereas in the scrubber unit 4, this component has the rational ejficiency of 99.191%. These components destroy the exergy as much as 479.458 kW by a factor f8.434% and the loss cost as much as 28.250 USD/h. Later on separator 4, this component has the rational efflciency of 98.159%. These components destroy the exergy as much as 685.576 kW by afactorf 6.140% and the loss cost as much as 39.778 USD/h. Next separator 5, this component has the rational efflciency of 98.662%. These components destroy the exergy as much as 1178.409 kW by a factor f3.646% and the loss cost as much as 68.770 USD/h. the last Component is the separator 6, this component has the rational efflciency of 96.947%. These components desti'oy the exergy as much as 2025.495 kW by a factor f 2.154% and the loss cost as much as 118.205 USD/h. of the overall results of the evaluation, it can be noted that the total deslruction of exergy by the plant of32280.953 kW. Due t o the deslruction of the exergy, the loss cost as much as USD 1907.271/h. Be aware that the components that need attention and further handling is good, condenser on unit 3 o r 4 unit s because most of the deslruction of exergy caused by the condenser and it has a lot of the losses inflicted by the component. \ Keywords: Geothermal Power Plant, energy analysis, exergy analysis, exergoeconomic analysis, single flash steam, irreversibility, rational efflciency, the loss cost, faktor f. Literature: 15 (1995-2017)

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	PLTP, analisis energi, analisis eksergi, analisis eksergoekonomi, single flash steam, eksergi yang dimusnahkan, efisiensi rasional, kerugian biaya, faktor/
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ163.26-163.5 Energy conservation
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Ichlasyah Aisyah
Date Deposited:	06 Aug 2025 07:21
Last Modified:	06 Aug 2025 07:21
URI:	http://repository.unsri.ac.id/id/eprint/182426

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