Electrical power from moderated temperature geothermal sources with modular mini-power plants

Bronicki, Lucien Y.

doi:10.1016/0375-6505(88)90007-7

Cited by 14 publications

(4 citation statements)

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“…[57,58]. Bronicki [59] conducted a review associated with different existing geothermal cites for power generation with the ORC system up until 1988. Vonsée et al [60] presented an assessment framework of technology dependence for geothermal power based on the ORC system in the European Union.…”

Section: Thermodynamic Investigation Of the Geothermal-driven Orc Sys...mentioning

confidence: 99%

A critical review of power generation using geothermal-driven organic Rankine cycle

Loni

Mahian

Najafi

et al. 2021

Thermal Science and Engineering Progress

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Section: Thermodynamic Investigation Of the Geothermal-driven Orc Sys...mentioning

confidence: 99%

A critical review of power generation using geothermal-driven organic Rankine cycle

Loni

Mahian

Najafi

et al. 2021

Thermal Science and Engineering Progress

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“…Organic rankine cycle (ORC) is a promising power production technology with the increasing interest due to its favorable low or medium operation characteristics opposed to conventional steam power cycles . ORC has been already successfully applied in many scenarios, such as waste heat , solar energy , biomass , geothermal . Nevertheless, the coefficient of performance (COP) is relatively lower than that of conventional cycles, which limits the further application.…”

Section: Introductionmentioning

confidence: 99%

Working fluids selection for flashing organic rankine regeneration cycle driven by low‐medium heat source

Wang

et al. 2017

Env Prog and Sustain Energy

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In this article, a modified organic rankine cycle, namely flashing organic rankine regeneration cycle (FORRC), is proposed by simultaneously incorporating regeneration and organic rankine‐flashing cycle. The selection of working fluids has a significant influence on the system performance. Six preselected working fluids are employed in the FORRC driven by low or medium temperature hot source. This objective of this work is to screen the most suitable working fluid and optimize the operation parameters, with the maximum coefficient of performance (COP), net power output (Wnet), volume expansion ratio(VER) and power generation per ton hot water(NPW) as the evaluation indicators. The optimization study is carried out by means of a parametric analysis, using a mathematical model developed in the software MATLAB. It is found that compared with the (organic rankine cycle) ORC and (flashing organic rankine cycle) FORC, the maximum COP of the FORRC raises substantially. There exist optimum evaporation temperatures and flashing temperatures at which the COP and NPW obtain the maximum, respectively. By means of comprehensive analysis, pentane appears to be the most suitable working fluids for the FORRC. Besides, some suggestions derived from the results are also given. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1201–1209, 2018

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“…The installed power of geothermal ORC plants totals more than 1000 MW e 1 and can be considered a mature technology. 2 ORC systems designed for comparatively high-temperature heat sources have been demonstrated to be a viable technology for small-scale biomass-fired combined heat and power energy conversion. 3–5…”

Section: Introductionmentioning

confidence: 99%

“…The installed power of geothermal ORC plants totals more than 1000 MW e 1 and can be considered a mature technology. 2 ORC systems designed for comparatively hightemperature heat sources have been demonstrated to be a viable technology for small-scale biomass-fired combined heat and power energy conversion. [3][4][5] It can be shown that with the heat of vaporization of organic fluids being much lower than that of water, a better match between the heating trajectory of the working fluid and the cooling trajectory of the heat source can be achieved.…”

Section: Introduction Backgroundmentioning

confidence: 99%

Performance improvement of a radial organic Rankine cycle turbine by means of automated computational fluid dynamic design

Harinck

Pasquale

Pečnik

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part A:

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There is a growing interest in organic Rankine cycle turbogenerators because of their ability to efficiently utilize external heat sources at low-to-medium temperature in the small-to-medium power range. High-temperature organic Rankine cycle turbines typically operate at very high pressure ratio and expand the organic working fluid in the dense-vapour thermodynamic region, thus requiring computational fluid dynamics solvers coupled with accurate thermodynamic models for their performance assessment and design. In this article we present a steady-state three-dimensional viscous computational fluid dynamics study of the Tri-O-Gen organic Rankine cycle radial turbine, including the radial nozzle, the rotor and the diffuser. The turbine operates with toluene as the working fluid, whose accurate thermophysical properties are obtained with a look-up table approach. Based on the three-dimensional simulation results, together with a two-dimensional fluid dynamic optimisation procedure documented elsewhere, an improved nozzle geometry is designed, manufactured and experimentally tested. Measurements show it delivers 5 kWe or 4% more net power output, as well as improved off-design performance.

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Electrical power from moderated temperature geothermal sources with modular mini-power plants

Cited by 14 publications

References 0 publications

A critical review of power generation using geothermal-driven organic Rankine cycle

A critical review of power generation using geothermal-driven organic Rankine cycle

Working fluids selection for flashing organic rankine regeneration cycle driven by low‐medium heat source

Performance improvement of a radial organic Rankine cycle turbine by means of automated computational fluid dynamic design

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