Zobrazeno 1 - 10
of 90
pro vyhledávání: '"P. J. Costa Branco"'
Autor:
João M. R. Catelas, João F. P. Fernandes, Modesto Pérez-Sánchez, P. Amparo López-Jiménez, Helena M. Ramos, P. J. Costa Branco
Publikováno v:
Energies, Vol 17, Iss 6, p 1382 (2024)
Using pumps operating as turbines (PATs) offers the possibility of increasing the sustainability of water and energy systems by recovering the excess energy that would be otherwise lost in pressure-reducing valves or head loss chambers. Regarding on-
Externí odkaz:
https://doaj.org/article/bb8029c41e144c789ffa515c52c44746
Publikováno v:
Energies, Vol 15, Iss 8, p 2882 (2022)
The use of a cobalt-iron (VaCoFe) core is investigated as an alternative to silicon-iron (FeSi) in the design of interior permanent magnet synchronous motors (IPMSM). Considering VaCoFe and FeSi cores, a spoke-type IPMSM geometry is optimized for a t
Externí odkaz:
https://doaj.org/article/b8a215774f234c9cb2f04a06a4ae8a39
Publikováno v:
Energies, Vol 14, Iss 13, p 3798 (2021)
Existing megawatt-scale photovoltaic (PV) power plant producers must understand that simple and low-cost Operation and Maintenance (O&M) practices, even executed by their own personal and supported by a comparison of field data with simulated ones, p
Externí odkaz:
https://doaj.org/article/c956fa56d44a48098aff7df8a0c1d4b9
Autor:
Modesto Pérez-Sánchez, João F. P. Fernandes, P. J. Costa Branco, P. Amparo López-Jiménez, Helena M. Ramos
Publikováno v:
Water, Vol 13, Iss 10, p 1359 (2021)
Sustainability and efficiency in irrigation are essential in the management of the water–energy–food nexus to reach the Sustainable Development Goals in 2030. In irrigation systems, the reduction of energy consumption is required to improve the s
Externí odkaz:
https://doaj.org/article/7a41b9fbcab3453089ba76440f759d8c
Autor:
Filipe C. Madeira, João F. P. Fernandes, Modesto Pérez-Sánchez, P. Amparo López-Jiménez, Helena M. Ramos, P. J. Costa Branco
Publikováno v:
Energies, Vol 13, Iss 17, p 4521 (2020)
The use of pumps working as turbines (PATs) is a sustainable technical measure that contributes to the improvement of energy efficiency in water systems. However, its performance analysis in off-grid recovery systems is a complex task that must consi
Externí odkaz:
https://doaj.org/article/355b3608e51b4ac1a45e3bd4a1c2e4ad
Publikováno v:
Energies, Vol 13, Iss 10, p 2465 (2020)
A high-performance 20 kW, 20 Nm, 8000 rpm, spoke-type interior permanent magnet motor to be integrated into a FormulaStudent electric car’s powertrain has been designed to meet demanding performance requirements for its driving cycle. This paper de
Externí odkaz:
https://doaj.org/article/dc938590c9b342749a85c7e0ca2ef105
Autor:
João Paulo N. Torres, Carlos A. F. Fernandes, João Gomes, Bonfiglio Luc, Giovinazzo Carine, Olle Olsson, P. J. Costa Branco
Publikováno v:
Energies, Vol 11, Iss 7, p 1878 (2018)
Solar concentrator photovoltaic collectors are able to deliver energy at higher temperatures for the same irradiances, since they are related to smaller areas for which heat losses occur. However, to ensure the system reliability, adequate collector
Externí odkaz:
https://doaj.org/article/b695f8acd100400dbf6fee40ec44ddf0
Autor:
Luis F. D. Bucho, Joao F.P. Fernandes, P. J. Costa Branco, Marco Biasion, Silvio Vaschettc, Andrea Cavagnino
Publikováno v:
2022 IEEE Energy Conversion Congress and Exposition (ECCE).
Publikováno v:
CIRED Porto Workshop 2022: E-mobility and power distribution systems.
Publikováno v:
Energy Systems. 12:1081-1111
The majority of opportunities to energy savings today and in the next decades are in the existing building stock, including commercial and retail ones. These are constrained by old equipment, aging infrastructure, and inadequate operations resources.