Field performance evaluation of geothermal ORC power plants with a focus on radial outflow turbines

Zanellato, Luca; Astolfi, Marco; Serafino, Aldo; Rizzi, Dario; Macchi, Ennio

doi:10.1016/j.renene.2018.08.068

Cited by 18 publications

(9 citation statements)

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“…To solve this problem, many researches have been conducted on the exploitation of renewable energy sources to generate clean power. Among the renewable energy sources, geothermal energy is one of the most promising resources mainly due to its abundance and availability in all seasons of the year [16–19]. Coskun et al [20] assessed thermodynamically and economically the power cycles for medium temperature geothermal fluids, the cycles included double flash, binary, combined (flash/binary) and Kalina cycle.…”

Section: Geothermal Power Generation With Orcmentioning

confidence: 99%

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Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Nshimyumuremyi

Wang

2020

IET Renewable Power Generation

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As the energy demand is increasing every day, the environmental pollution has been a main concern. To reduce environmental pollution while satisfying the energy demand, renewable energy is a good solution and attracted many researchers not only to produce clean energy but also to find sustainable energy solution. Among renewable energy, geothermal energy is one of promising renewable sources and is recently given a high consideration. The tectonic position of Rwanda and volcanism show that Rwanda may have promising geothermal resources. One of the evidences is the hot springs originated from tectonic. Gisenyi hot spring is located in Northern Province nearest to the Kivu Lac on the base of volcanoes with surface water temperature of 71°C. In this paper, the conceptual and numerical models were made on Gisenyi hot spring based on geological, geochemical, hydrochemistry and geophysical data to estimate the temperature profile of the spring. This paper assesses the reservoir temperature of Gisenyi hot spring by using various geothermometers along with existing data and information using MATLAB software. The electrical power potential using Organic Rankine Cycle and Carbon dioxide as a working fluid have been assessed together with the optimum depth by considering the dominant mode of heat transfer.

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Section: Geothermal Power Generation With Orcmentioning

confidence: 99%

“…Zanellato et al [17] presented the test procedures and methods to calculate the ORC turbine efficiency and the overall power performance.…”

Section: Geothermal Power Generation With Orcmentioning

confidence: 99%

Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Nshimyumuremyi

Wang

2020

IET Renewable Power Generation

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“…Therefore, for the low power range (mainly using radial-inflow turbines, < 100 kW e ), it is necessary to design an adequate bearing system and to employ a high-speed generator and power electronics. Radial outflow turbine design allows a high volume flow ratio with the constant peripheral speed along the blade span (Zanellato et al, 2018). Radial-outflow turbines can be used for small to medium-scale applications with an advantage of reduced rotational speed, allowing direct coupling to a generator (Maksiuta et al, 2017).…”

Section: Power Generationmentioning

confidence: 99%

Advances in Carbon Management Technologies

Sikdar¹,

Princiotta

2020

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“…Calculating the efficiency of both ORC and its components is not an easy task due to the lack of adequate instrumentation, inaccurate measurements and uncertainty as to the thermodynamic properties of the working fluid. This can have a significant impact on the final results of calculations, especially for complex fluids, with a small temperature drop in expansion [20].…”

Section: Organic Rankine Cycle In Energy Productionmentioning

confidence: 99%

Energy and Ecological Evaluation of ORC Based Geothermal CHP Plant in Poland – A Case Study

Mróz¹,

Grabowska²

2019

Preprint

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The paper presents the results of energy and environmental analysis of geothermal CHP plant operation in Polish conditions. As the most favorable, for the geothermal conditions prevailing in Poland, the variant of CHP plant based on Organic Rankine Cycle (ORC) has been taken into consideration. As the case study the existing geothermal well located in the town of Konin in the Wielkopolska voivodship has been chosen. The conceptual design of CHP plant has been proposed and evaluated from energy and environmental point of view. As energy performance criteria the non-renewable primary energy consumption has been chosen. In case of environmental performance carbon dioxide emission has been taken as evaluation criteria. The analysis has been performed for different operating conditions and three working fluids. Keywords: energy performance, CO2 emission, cogenerated heat and power (CHP), Organic Rankin Cycle (ORC) Poland are located in West European tectonic plate and refer to the underground water pools of Carpatia Mountains, Sudety Mountains and Podhale -Figure 1.Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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Field performance evaluation of geothermal ORC power plants with a focus on radial outflow turbines

Cited by 18 publications

References 1 publication

Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Advances in Carbon Management Technologies

Energy and Ecological Evaluation of ORC Based Geothermal CHP Plant in Poland – A Case Study

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Field performance evaluation of geothermal ORC power plants with a focus on radial outflow turbines

Cited by 18 publications

References 1 publication

Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Geothermal reservoir heat transfer, temperature modelling and electrical power potential estimation: Gisenyi hot spring

Advances in Carbon Management Technologies

Energy and Ecological Evaluation of ORC Based Geothermal CHP Plant in Poland &ndash; A Case Study

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Energy and Ecological Evaluation of ORC Based Geothermal CHP Plant in Poland – A Case Study