Energy and Exergy Analysis of Dieng Geothermal Power Plant

Qurrahman, Alfian Hardi; Wilopo, Wahyu; Susanto, Sigit Ponco; Petrus, Himawan Tri Bayu Murti

doi:10.14716/ijtech.v12i1.4218

Cited by 9 publications

(8 citation statements)

References 14 publications

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“…Micro-turbines, combustion engines, fuel cells, wind turbines, geothermal systems, solar systems, and other technologies can power DG. DG occurs on two levels: the local level and the end-point level (Qurrahman et al, 2021).…”

Section: Distributed Energy Resources Technologiesmentioning

confidence: 99%

“…Distributed energy resources can be in different forms, including natural gas-fueled generators, solar panels, and electric vehicles (Pallett, 2017). The demonstrable prototype of any of the forms can be modeled as a small-scale energy source, such as a small-scale biofuel system or a geothermal plant, to the proportionate consuming loads while the management is also highlighted (Münz and Wu, 2021;Qurrahman et al, 2021;Smirnova et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Control Design and Management of a Distributed Energy Resources System

Onibonoje¹,

Alegbeleye²,

Ojo³

2023

IJTech

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Energy generation, distribution, and transmission are crucial to the development and advancement of humans and their environment. Therefore, the need for a sustainable environment is essential. This study focuses on designing, building, testing, and commissioning an intelligent grid solar-powered distributed energy resource system to serve as an alternative to powering loads with conventional energy sources, creating a pollution-free and self-dependent system that can be built to the capacity of the required load. The solar panels, voltage regulator, microprocessor, solar charge controller, and batteries are all interconnected to automatically switch between the three solar substations. The simulation of the DER network system was executed with MATLAB, Simulink, and Simscape Electrical. The management system was created using the Visual Studio 2019 and ASP.NET MVC software. The management system was designed to keep tabs on the daily sales of the DER components to various clients. The results are achieved by subjecting a load (21W rated headlight bulb and a 5W rated fluorescent bulb) at specified time intervals (10, 20, 30 minutes). The results showed us a particular set threshold voltage for the sub-station switch. This project gives an insight into how good and reliable the distributed energy resource system can be as it provides a constant power supply to the equipment.

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Section: Distributed Energy Resources Technologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Control Design and Management of a Distributed Energy Resources System

Onibonoje¹,

Alegbeleye²,

Ojo³

2023

IJTech

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“…One of the geothermal power plants (GPP) in Indonesia is the Dieng Geothermal Power Plant in Dieng, Central Java, Indonesia. Geothermal Power Plant (GPP) utilizes single-flash steam system technology, which is indicated by the largescale use of brine found in geothermal wells [36]. The process flow diagram for the single-flash system at the Dieng Geothermal Power Plant is shown in Fig.…”

Section: Geothermal Power Plant (Gpp)mentioning

confidence: 99%

“…In the power plant section, the parameters recorded are flow rate of 250-350 kg/s, the pressure of 8-29 bar, and temperature of 40-140℃. Each parameter mentioned is the value of Geothermal Power Plant under normal conditions for operation [36].…”

Section: Geothermal Power Plant (Gpp)mentioning

confidence: 99%

Energy Conversion and Conservation Technology in Facing Net Zero-Emission Conditions and Supporting National Defense

2022

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Conversion technology is a solution that was born to solve energy problems and human needs. Without energy, all human activities ranging from households and jobs to the industry cannot work as they should, but energy conversion that uses conventional fuels will cause new issues such as climate changes. Therefore, energy conservation is very important for sustainability and energy saving. So, by reducing energy use, the pollution produced will decrease. This paper focuses on the introduction of energy conversion and conservation technology based on a qualitative literature review to deal with net-zero emission conditions. The conversion technology is environmentally friendly and efficient, and is committed to following the international Net Zero Emissions (NZE) agreement, renewable energy conversion technology and new technologies (fuel cells) to meet Indonesia's defense equipment and defense needs. Indonesia's energy use (2019) consists of oil 35%, coal 37.3%, gas 18.5%, hydropower 2.5%, geothermal 1.7%, biofuel 3%, and other renewables at nearly 2%. In 2013 Indonesia's recoverable shale resources obtained a value of 8 Billion Barrels. Because of that the total CO2 emissions resulting from energy use in Indonesia are 581 MtCO2 in 2019. Efforts to fulfil Indonesia's Nationally Determined Contribution (NDC) continue to be carried out, so that Indonesia's target is to enter a state of net-zero emission by 2060. Fuel cell technology has the potential to be applied in the Indonesian National Army, because of its relatively small size, light weight, zero-emission, high specific energy and zero-noise.

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“…However, in recent years, exergy analysis based on the second law of thermodynamics has been applied in the performance evaluation of thermal power plants, i.e., geothermal power plants [8][9][10], steam power plant [11][12][13][14][15], gas turbine power plant [16][17], combined cycled power plant [18]. Unlike energy analysis, exergy analysis considers energy destruction by entropy generation, which is caused by the imperfect material microstructure or temperature difference, to evaluate energy quality and to track energy losses in the system.…”

Section: Introductionmentioning

confidence: 99%

Energy, Exergy, and Externalities Cost Rate Analysis of 300 MW Coal-Fired Power Plant: A Case Study

Helios

Maswan

Komara

et al. 2023

Majalah Ilmiah Pengkajian Industri

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Three types of analysis conducted at one of Thailand's coal-fired power plants were reported in this paper. The analyses consisting of energy, exergy, and externalities cost rate analysis are aimed to analyse the largest energy loss and exergy destruction that occurs in the system, to assess the contribution of Energy externalities cost rate based on fuel price, and to determine potential cost saving. Energy loss at the condenser was the highest among major units of the Thai power plants, which contributed around 49.11% at full load condition and was followed by a boiler, turbine, etc. Furthermore, the boiler was identified as the highest exergy destruction producer, with around 57.73% of total exergy input into the system, followed by turbines, heaters, etc. Moreover, the energy and exergy efficiency of Thai's power plant was calculated to be around 35.60% and 31.76%, respectively. The highest externalities cost rate due to energy loss occurred in the condenser was about 0.56 $/s, whereas the highest externalities cost rate due to exergy destruction identified in the boiler was about 0.67 $/s. By improving boiler and turbine components, Thai's PP has a potential cost saving of around 21.2 million $/year, reducing 88.44% of the externalities cost of exergy destruction. Keywords: Energy loss, Exergy destruction, Externalities cost rate, Potential saving cost.

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Energy and Exergy Analysis of Dieng Geothermal Power Plant

Cited by 9 publications

References 14 publications

Control Design and Management of a Distributed Energy Resources System

Control Design and Management of a Distributed Energy Resources System

Energy Conversion and Conservation Technology in Facing Net Zero-Emission Conditions and Supporting National Defense

Energy, Exergy, and Externalities Cost Rate Analysis of 300 MW Coal-Fired Power Plant: A Case Study

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