Efficiency in Geothermal Operations: Mixtures as working fluids for ORC Power Plants

Autor: Galieti, L., de Servi, C.M., Colonna, Piero, Silva, Paolo, Bombarda, Paola

Publikováno v: 13th European Geothermal PhD Days-2022. RWTH Aachen University, Aachen, Germany
13th European Geothermal PhD Days-2022

The use of mixtures in place of pure fluids in Organic Rankine Cycle (ORC) power plants is proposed as a possible improvement in terms of efficiency, environmental benefit and safety of the system. In particular, zeotropic mixtures exhibit a temperat

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Entropy generation in laminar boundary layers of non-ideal fluid flows

Autor: Pini, M., de Servi, C.M., di Mare, Francesca, Spinelli, Andrea, Pini, Matteo

Publikováno v: Non-Ideal Compressible Fluid Dynamics for Propulsion and Power-Selected Contributions from the 2nd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power, NICFD 2018
Lecture Notes in Mechanical Engineering ISBN: 9783030496258

This paper documents a numerical study on entropy generation in zero-pressure gradient, laminar boundary layers of adiabatic non-ideal compressible fluid flows. The entropy generation is expressed in terms of dissipation coefficient $$C:\mathrm {d}$$

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Corrigendum to 'Active subspaces for the optimal meanline design of unconventional turbomachinery' (Applied Thermal Engineering (2017) 127 (1108–1118), (S1359431117315466) (10.1016/j.applthermaleng.2017.08.093))

Autor: Bahamonde, Juan S., Pini, M., de Servi, C.M., Schiffmann, Jürg, Colonna, Piero

Publikováno v: Applied Thermal Engineering, 150

By means of this corrigendum, the authors would like to include relevant information regarding the validation of the meanline turbine model employed in the original article. The improvement regarding the validation of the model was made possible than

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Fluid-dynamic design and characterization of a mini-ORC turbine for laboratory experiments

Autor: Pini, M., de Servi, C.M., Burigana, M., Bahamonde, Juan S., Rubino, A., Vitale, S., Colonna, Piero, Dossena, V., Guardone, A., Astolfi, M.

Publikováno v: 4th International Seminar on ORC Power Systems: Milano, Italy, 129

High temperature Organic Rankine Cycles power systems of low power capacity, i.e. 3-50 kWe, are receiving recognition for distributed and mobile energy generation applications. For this type of power plants, it is customary to adopt a radial-turbine

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