Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Luis Narvarte"'
Publikováno v:
Energies, Vol 17, Iss 18, p 4612 (2024)
This paper presents the results of the technical validation of an innovative prototype for drying alfalfa bales. It is based on a 4.1 kW Heat Pump (HP) that uses an advanced technology (optimized for extracting the humidity from the air) and is direc
Externí odkaz:
https://doaj.org/article/93c17f7bdce74cc486e5ce06775a18ff
Publikováno v:
Energies, Vol 16, Iss 21, p 7449 (2023)
This paper proposes a new automatic tuning method for the proportional-integral (PI) controllers of photovoltaic irrigation systems (PVIS) without the need for any other power source or batteries. It enables the optimisation of the values of the PI p
Externí odkaz:
https://doaj.org/article/feff46beda564aa3a29f2a5bc28b93b1
Publikováno v:
Energies, Vol 16, Iss 9, p 3654 (2023)
High-power diesel-based or grid-connected irrigation systems are being replaced by battery-free, high-power stand-alone Photovoltaic Irrigation Systems (PVIS) that reduce energy costs by up to 80% and for which no experimental performance data are av
Externí odkaz:
https://doaj.org/article/7b79d6c036c544888af23cceedf5e4d6
Publikováno v:
Energies, Vol 16, Iss 8, p 3347 (2023)
This paper presents an economic assessment of three drying systems (DS) with different configurations: diesel-powered (DDS), grid-powered (GDS), and photovoltaic-powered (PVDS). The third configuration, PVDS, presents important technological innovati
Externí odkaz:
https://doaj.org/article/afc7b2c371f6449382efead144ea6499
Autor:
Juan Ignacio Herraiz, José Fernández-Ramos, Rita Hogan Almeida, Eva María Báguena, Manuel Castillo-Cagigal, Luis Narvarte
Publikováno v:
Energy Conversion and Management: X, Vol 13, Iss , Pp 100175- (2022)
Stand-alone large-power PV irrigation systems without batteries is a recent innovation. This means that their design has not yet reached maturity and there are no experimental data about their performance available. This paper is a contribution, on t
Externí odkaz:
https://doaj.org/article/af940edaa8e249ca83bc6c2ce77aa4c1
Publikováno v:
Energies, Vol 15, Iss 19, p 7191 (2022)
One of the greatest challenges in stand-alone photovoltaic irrigation systems (PVIS) without batteries is the tuning of PID controllers and the evaluation of their performance once the system is tuned. Tuning method must be applied in clear days (con
Externí odkaz:
https://doaj.org/article/6726712dd5b04bfd878d724ca27c28d1
Publikováno v:
Energies, Vol 13, Iss 16, p 4114 (2020)
The use of photovoltaic (PV) systems for powering heat pumps (HP) leads to an economic, energy efficient and environmentally friendly alternative for heating and cooling generation. A technical solution developed by the authors permits stand-alone co
Externí odkaz:
https://doaj.org/article/c41a95f2cd804ee78e637a9dffd10b0f
Autor:
Rita H. Almeida, Isaac B. Carrêlo, Eduardo Lorenzo, Luis Narvarte, José Fernández-Ramos, Francisco Martínez-Moreno, Luis M. Carrasco
Publikováno v:
Energies, Vol 11, Iss 12, p 3538 (2018)
The current state of the art of photovoltaic (PV) irrigation systems is limited to PV peak powers below 40 kWp, which does not cover the irrigation needs of farmers, co-operatives, irrigator communities, and agro-industries. This limitation of power
Externí odkaz:
https://doaj.org/article/1b95cdeaf78f46f68d66c69a17d55bfa
Autor:
Giuseppe Todde, Lelia Murgia, Isaac Carrelo, Rita Hogan, Antonio Pazzona, Luigi Ledda, Luis Narvarte
Publikováno v:
Energies, Vol 11, Iss 8, p 2110 (2018)
A life cycle assessment (LCA) methodology was used to evaluate the cumulative energy demand and the related environmental impact of three large-power stand-alone photovoltaic (PV) irrigation systems ranging from 40 kWp to 360 kWp. The novelty of this
Externí odkaz:
https://doaj.org/article/1ab38048cd334c7a8fd9ed815f8c9987
Publikováno v:
Energies, Vol 9, Iss 7, p 496 (2016)
This paper presents the results of the implementation of a self-consumption maximization strategy tested in a real-scale Vanadium Redox Flow Battery (VRFB) (5 kW, 60 kWh) and Building Integrated Photovoltaics (BIPV) demonstrator (6.74 kWp). The teste
Externí odkaz:
https://doaj.org/article/1fc559552bd34e6da3df12f2b3759a48