Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Eugenia Paulescu"'
Autor:
Eugenia Paulescu, Marius Paulescu
Publikováno v:
Applied Sciences, Vol 13, Iss 11, p 6558 (2023)
The separation models are tools used in solar engineering to estimate direct normal (DNI) and diffuse horizontal (DHI) solar irradiances from measurements of global solar irradiance (GHI). This paper proposes two empirical separation models that stan
Externí odkaz:
https://doaj.org/article/5f6010bef32440b6819f69c30ac4026a
Autor:
Eugenia Paulescu, Marius Paulescu
Publikováno v:
Applied Sciences, Vol 12, Iss 24, p 12759 (2022)
The knowledge of the solar irradiation components is required by most solar applications. When only the global horizontal irradiance is measured, this one is typically broken down into its fundamental components, beam and diffuse, by applying an empi
Externí odkaz:
https://doaj.org/article/0ca340cb15c241b2aa09a232f39cfa63
Autor:
Eugenia Paulescu, Marius Paulescu
Publikováno v:
Renewable Energy. 179:2094-2103
A new broadband parametric clear-sky solar irradiance model is reported in this paper. Constructed as a trade-off between accuracy and accessibility, the model holds some innovative elements, such as: (1) the atmospheric transmittances are inferred b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f07d188c488428f5cbc0f42b6822359
https://doi.org/10.1016/j.renene.2021.08.029
https://doi.org/10.1016/j.renene.2021.08.029
Autor:
Nicolina Pop, Eugenia Paulescu, Remus Boata, Robert Blaga, Oana Mares, Sorin Bojin, Marius Paulescu, Andreea Sabadus, Nicoleta Stefu, Delia Calinoiu
Publikováno v:
Meteorology and Atmospheric Physics. 133:1395-1407
It is entirely apparent that an accurate estimation of global horizontal solar irradiance (GHI) does not guarantee an accurate estimation of its fundamental components. This basic perception motivates the present study, which evaluates the ability of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75f2eb0d1554dae8ae0ed4a3e3c1e654
https://doi.org/10.1007/s00703-021-00815-z
https://doi.org/10.1007/s00703-021-00815-z
Autor:
Marius Paulescu, Eugenia Paulescu
Publikováno v:
Renewable Energy. 143:985-994
Five statistical models for nowcasting solar irradiance are evaluated from different perspectives. The first four models are purely statistical ones: random walk, moving average, exponential smoothing and autoregressive integrated moving average. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c17abed35f0510759b238dcec8f3a4a
https://doi.org/10.1016/j.renene.2019.05.075
https://doi.org/10.1016/j.renene.2019.05.075
Autor:
Eugenia Paulescu, Robert Blaga
Publikováno v:
Solar Energy. 180:75-84
Recent progress in radiometry allows the development of diffuse fraction models based on data stored at high-frequency sampling. At the present only a handful of such models exist in the literature. In this paper, we present a new and simple model fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffd498b90aa4c5676305882b702ac28b
https://doi.org/10.1016/j.solener.2019.01.029
https://doi.org/10.1016/j.solener.2019.01.029
The equilibrium of the electricity grid is very often changing due to demand fluctuations and it is further threatened by the fluctuation in the output of solar power plants. With the aim of increasing the share of solar electricity in the energy mix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b66bf292dfd8dd2c412633db52e090a
https://doi.org/10.1016/b978-0-12-817772-3.00009-4
https://doi.org/10.1016/b978-0-12-817772-3.00009-4
Autor:
Sorin Bojin, Robert Blaga, Ciprian Dughir, Andreea Sabadus, Eugenia Paulescu, Nicoleta Stefu, Marius Paulescu
Publikováno v:
Annals of West University of Timisoara: Physics, Vol 60, Iss 1, Pp 104-110 (2018)
Forecasting the solar energy production is a key issue in the large-scale integration of the photovoltaic plants into the existing electricity grid. This paper reports on the research progress in forecasting the solar energy production at the West Un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5645fb7a2c0b0050177a054bb6ca5c61
https://doi.org/10.2478/awutp-2018-0011
https://doi.org/10.2478/awutp-2018-0011
Autor:
Eugenia Paulescu, Nicolina Pop, Remus Boata, Nicoleta Stefu, Oana Mares, Delia-Gabriela Calinoiu, Marius Paulescu
Publikováno v:
Renewable and Sustainable Energy Reviews. 62:495-506
The Angstrom–Prescott equation defines generically the relationship between solar energy available at ground level and sunshine duration. From the very beginning in the history of the solar converters, the equation was extensively used to estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3f2e8911df4d1a51f3da700a7761b1c
https://doi.org/10.1016/j.rser.2016.04.012
https://doi.org/10.1016/j.rser.2016.04.012