Adoption of Kalina cycle as a bottoming cycle in Wayang Windu geothermal power plant

Prananto, Lukman Adi; Soelaiman, Tubagus Muhammad Fauzi; Aziz, Muhammad

doi:10.1016/j.egypro.2017.12.370

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…The solar system using KCS11 can provide the needed annual demand for residential buildings in Hormozgan and Isfahan. The annual demand of the residential buildings in the two provinces can be provided by the Solar-Kalina cycle studied In Indonesia, The Wayang Windu geothermal power plant considered using the KCS11 as the bottoming cycle to maximize the brine that is coming out of the separator at 180°C [49]. The system simulation, using Peng-Robinson Method, produced 1734 kW of power at 13.20% efficiency.…”

Section: Trendsmentioning

confidence: 99%

A Literature Review of the Kalina Cycle and Trends

Cruz

Manuel

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The demand for electricity and power has been increasing with the increase of the population of the world. The Covid-19 Pandemic has affected the way of life of human beings starting last year. The pandemic and economic downturn also affected the electricity demand of the world, but this is only short-term. Once the lockdowns around the world ease and back to normal situation begin, demand for power and electricity shall continue to grow. The century-old Rankine cycle has been the basis for power plants widely used today. However, a modified Rankine cycle known as the Kalina cycle has been proving more efficient than the standard Rankine cycle and might be able to provide the additional power needed in medium and low-temperature sources and waste heat recovery. This paper look into the development of the Kalina cycle and the trends that might be of use for the global electricity requirement.

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Section: Trendsmentioning

confidence: 99%

A Literature Review of the Kalina Cycle and Trends

Cruz

Manuel

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Table 1 provides information regarding the geothermal waste brine at the Wayang Windu geothermal power plant. ) 853 mg/L Source: [19].…”

Section: Electricity Marketmentioning

confidence: 99%

“…A number of feasibility studies in Indonesia for binary power systems have also been attempted. For example, Prananto [19] selected Kalina cycle as the binary system for the Wayang Windu site at Pangalengan, West Java, and showed that the cycle could produce up to 1660 kW of electricity with a system efficiency of 13.2%. Pasek et al [20] assessed the application of a binary cycle to utilize the waste brine from the Lahendong geothermal power plant with maximum net power output as the objective.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Economic Analysis of A Geothermal Binary Power Plant in Indonesia—A Pre-Feasibility Case Study of the Wayang Windu Site

2019

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Indonesia has a predicted geothermal potential of 29 GWe, which is the biggest in the world. With this potential, the government has the ambitious target to generate as much as 7 GWe of electricity in 2025 from geothermal energy. However, the installed capacity of geothermal power plant in Indonesia until 2019 is only 1.9 GWe. Enhancements in already-installed geothermal power plants with a binary power plant can be considered to achieve the 2025 target. In this research, a thermo-economic analysis is carried out to assess the feasibility of binary power systems to enhance the existing geothermal power plants in Indonesia. The Wayang Windu site is selected as the case study. Three working fluids, i.e., n-Pentane, isopentane, and R245fa, are compared. Two different optimization objectives are considered and compared. First, the thermal efficiency is optimized to maximize the thermodynamic performance. In the second scenario, the heat exchanger area is optimized to maximize the economic performance. Analysis of the economic profitability variables, namely the payback period and internal rate of return, shows that optimizing the heat exchangers gives better economic results when compared to optimizing the thermal efficiency. The results also show that the type of working fluid significantly affects both the thermal efficiency and economic profitability of the binary power plant. Moreover, n-Pentane has the most preferred thermo-economic performance for the geothermal conditions at Wayang Windu with the smallest payback period of 13 years and the highest internal rate of return of 11.28%.Keywords: thermodynamics; binary geothermal power plant; organic rank

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“…Prananto et al [10] adopted and studied Kalina cycle system as a bottoming cycle. The Kalina cycle system (KCS 11) consists of ten parts, five heat exchangers, turbine, two pumps, two mixers and expansion valve.…”

Section: Introductionmentioning

confidence: 99%

Effect of Operating Conditions on Modified Kalina Cycle Performance

Nassir¹,

Shahad²

2022

IJHT

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Simple Kalina cycle system (SKCS) is used for low temperature, intermediate temperature and high temperature heat recoveries. However, its efficiency is rather low. Therefore, a modification is suggested to improve its efficiency. In this work a computer program is developed to predict the energy-exergy performance of a modified Kalina Cycle System (MKCS) using aqua ammonia solution. It consists of heat recovery vapor generator (HRVG), condenser, heat exchanger, separator, turbine, throttling valve, absorber and pump. The modification is implemented by introducing a heat exchanger (HE) between the separator and expansion valve. This HE is used to reheat the work solution which comes from the pump by the high temperature hot weak solution which comes from the separator. The effect of many operating conditions such as dryness fraction (DF) at separator inlet, low pressure and ammonia (NH3) mass fraction with constant high pressure on cycle performance is studied. The results show that the modified cycle efficiency is higher than the simple cycle efficiency by about 33.6% while the net power by about 27.8%. The highest efficiency and highest net output power are 14.7% and 0.5641 kW respectively. The exergy efficiencies for modified Kalina and simple Kalina are 24.8% and 11.7% respectively.

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Adoption of Kalina cycle as a bottoming cycle in Wayang Windu geothermal power plant

Cited by 5 publications

References 11 publications

A Literature Review of the Kalina Cycle and Trends

A Literature Review of the Kalina Cycle and Trends

Thermo-Economic Analysis of A Geothermal Binary Power Plant in Indonesia—A Pre-Feasibility Case Study of the Wayang Windu Site

Effect of Operating Conditions on Modified Kalina Cycle Performance

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