Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Lavinia Grosu"'
Autor:
Daniel Taban, Valentin Apostol, Lavinia Grosu, Mugur C. Balan, Horatiu Pop, Catalina Dobre, Alexandru Dobrovicescu
Publikováno v:
Entropy, Vol 25, Iss 11, p 1531 (2023)
To improve the efficiency of a diesel internal combustion engine (ICE), the waste heat carried out by the combustion gases can be recovered with an organic Rankine cycle (ORC) that further drives a vapor compression refrigeration cycle (VCRC). This w
Externí odkaz:
https://doaj.org/article/7dbd7ffee62f459ea808f0ccdf2a8437
Publikováno v:
Energies, Vol 14, Iss 21, p 7009 (2021)
The Stirling engine is an alternative solution to produce cleaner energy in order to achieve the reduction of the fossil fuel consumption and the CO2 emissions. It comprises an external combustion engine that can convert any external heat source into
Externí odkaz:
https://doaj.org/article/ee7177a41e3d4b3f921eca04160d8f7d
Publikováno v:
Entropy, Vol 23, Iss 3, p 368 (2021)
The purpose of the study is to show that two simple models that take into account only the irreversibility due to temperature difference in the heat exchangers and imperfect regeneration are able to indicate refrigerating machine behavior. In the pre
Externí odkaz:
https://doaj.org/article/fbe9db9c815246e2badd9ba755bb7297
Publikováno v:
Entropy, Vol 22, Iss 11, p 1278 (2020)
The paper presents experimental tests and theoretical studies of a Stirling engine cycle applied to a β-type machine. The finite physical dimension thermodynamics (FPDT) method and 0D modeling by the imperfectly regenerated Schmidt model are used to
Externí odkaz:
https://doaj.org/article/f369b900d0154435a2f776d867983490
Publikováno v:
Entropy, Vol 17, Iss 4, Pp 2198-2217 (2015)
In order to describe the phenomenon of intermittency in wall turbulence and, more particularly, the behaviour of moments and and intermittency exponents ζP with the order p and distance to the wall, we developed a new geometrical framework called
Externí odkaz:
https://doaj.org/article/8231f0a5f2ba4bb6b7f0106008401b52
Publikováno v:
Entropy, Vol 18, Iss 2, p 56 (2016)
We developed a geometrical model to represent the thermodynamic concepts of exergy and anergy. The model leads to multi-scale energy lines (correlons) that we characterised by fractal dimension and entropy analyses. A specific attention will be paid
Externí odkaz:
https://doaj.org/article/2537db881ec74f0a97f498c1ea6d5b1e
Publikováno v:
Journal of Energy Engineering. 147
The low temperature difference (LTD) Stirling engine is important for solar power application. This study focuses mainly on the influence of physical and geometrical parameters on the opera...
Autor:
Mohammad Hossein Ahmadi, Mokhtar Bidi, Mohammad-Ali Ahmadi, Esmaeil Aboukazempour, Lavinia Grosu, Fathollah Pourfayaz
Publikováno v:
Frontiers in Energy. 13:399-410
Owing to the energy demands and global warming issue, employing more effective power cycles has become a responsibility. This paper presents a thermodynamical study of an irreversible Brayton cycle with the aim of optimizing the performance of the Br
Autor:
Lavinia Grosu, Antoine Mathieu, Michel Feidt, Pierre Rochelle, Mohammad Hossein Ahmadi, Milad Sadeghzadeh
Publikováno v:
Environmental Progress & Sustainable Energy
Environmental Progress & Sustainable Energy, 2020, 39 (3), ⟨10.1002/ep.13359⟩
Environmental Progress & Sustainable Energy, Wiley, 2020, 39 (3), ⟨10.1002/ep.13359⟩
Environmental Progress & Sustainable Energy, 2020, 39 (3), ⟨10.1002/ep.13359⟩
Environmental Progress & Sustainable Energy, Wiley, 2020, 39 (3), ⟨10.1002/ep.13359⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eef95f26b1b8976557cfe537bcc093f8
https://hal.univ-lorraine.fr/hal-03073823
https://hal.univ-lorraine.fr/hal-03073823
Autor:
Ruijie Li, Lavinia Grosu
Publikováno v:
International Journal of Refrigeration. 80:92-105
In this paper, an isothermal model is used for modeling the Stirling cryocooler. Various losses including regenerator imperfection thermal loss, piston finite speed loss, gas spring hysteresis loss, displacer shuttle heat loss, clearance heat pump lo