Study of the integration of a supersonic impulse turbine in a NH 3 / H 2 O absorption heat pump for combined cooling and power production from a low temperature heat source
| Autor: | Simone Braccio, Hai Trieu Phan, Nolwenn Le Pierrès, Nicolas Tauveron |
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| Přispěvatelé: | Univ. Grenoble Alpes – CEA/LITEN, Laboratoire Optimisation de la Conception et Ingénierie de l'Environnement (LOCIE), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), S. Braccio was supported by the CEA NUMERICS program, which has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 800945. |
| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
Impulse axial turbine Expander Mechanical engineering Impulse (physics) Turbine Absorption Power (physics) Environmental sciences Water / Ammonia [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] Mass flow rate Environmental science GE1-350 Supersonic speed Absorption heat pump Electric power |
| Zdroj: | E3S Web Conf, 2021 76th Italian National Congress ATI (ATI 2021) ATI 2021 ATI 2021, Sep 2021, Rome, Italy. pp.08018, ⟨10.1051/e3sconf/202131208018⟩ E3S Web of Conferences, Vol 312, p 08018 (2021) |
| DOI: | 10.1051/e3sconf/202131208018 |
| Popis: | International audience; The present work is focused on the investigation of an absorption cycle integrated with an impulse axial turbine for the combined production of cooling and electric power. This technology holds great promise for its ability to harness low-temperature heat sources, more effciently in comparison to separate production with simple cycles. By developing a 1D model of the expander, and integrating it into a 0D model of the complete cycle, it is possible to evaluate the performance of the cycle and its variation with respect to the operating parameters, namely the temperature of the external resources. Pending an experimental validation of the results, this study showed the importance of correctly defining the temperature of the sources - namely the generator temperature - in order to satisfy the technological needs while also maximising the effciency of the cycle. Finally it was highlighted how the integration of a supersonic impulse turbine strongly limits the flexibility during operation given the constant mass flow rate treated by the expander. |
| Databáze: | OpenAIRE |
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