Results 21 to 30 of about 7,723,373 (378)

On the Summarization of Meteorological Data for Solar Thermal Power Generation Forecast

Energies, 2023
The establishment of the typical weather conditions of a given locality is of fundamental importance to determine the optimal configurations for solar thermal power plants and to calculate feasibility indicators in the power plant design phase. Therefore,
Icaro Figueiredo Vilasboas, Julio Augusto Mendes da Silva, Osvaldo José Venturini   +2 more
doaj   +1 more source

Unidimensional and 3D Analyses of a Radial Inflow Turbine for an Organic Rankine Cycle under Design and Off-Design Conditions

Energies, 2023
The organic Rankine cycle (ORC) is an efficient technology for electricity generation from low- and medium-temperature heat sources. In this type of power cycle, the radial inflow turbine is the option usually selected for electricity generation.
Gaylord Carrillo Caballero, Yulineth Cardenas Escorcia, Osvaldo José Venturini, Electo Eduardo Silva Lora, Anibal Alviz Meza, Luis Sebastián Mendoza Castellanos   +5 more
doaj   +1 more source

Numerical–Experimental Performance Assessment of a Non-Concentrating Solar Thermoelectric Generator (STEG) Operating in the Southern Hemisphere

Energies, 2020
This study assesses the performance of a solid-state semiconductor-based hybrid photovoltaic-thermoelectric device that aims to harness both solar irradiance and heat dissipated from photovoltaic cells operating in Foz do Iguaçu city.
Nelson Calderón-Henao, Osvaldo José Venturini, Emerson Henrique Medina Franco, Electo Eduardo Silva Lora, Helton Fernando Scherer, Diego Mauricio Yepes Maya, Oswaldo Hideo Ando Junior   +6 more
doaj   +1 more source

Entropy weight and grey relational analysis based virtual capacitance collaborative control for multiple energy storage units

IET Power Electronics, 2023
Flexible virtual capacitance control (FVCC) for converter can improve the stability and dynamics of DC bus voltage, but among multiple converters, essential inertia distribution is capable of optimizing the performance.
Hui Wang, Shuqiang Zhao, Jianhui Meng, Yanjun Tian, Yuhan Sun, Kairang Wang   +5 more
doaj   +1 more source

On the Distribution of Generating Functions [PDF]

Bulletin of the London Mathematical Society, 1998
The generating function \(f_P(\alpha)\) associated with the \(k\)th powers is defined by \[ f_P(\alpha)= \sum_{1\leq n\leq P} \exp(i2\pi\alpha n^k). \] For \(\alpha\in (0,1]\), let \(f(\alpha)= P^{-1/2}|f_P(\alpha)|\). It has been conjectured that \[ \int_0^1 f(\alpha)^s d\alpha\sim \Gamma (\tfrac s2+1).
Vaughan, RC, Wooley, TD
openaire   +4 more sources

On the Implementation of the Nearly Zero Energy Building Concept for Jointly Acting Renewables Self-Consumers in Mediterranean Climate Conditions

Energies, 2020
Cost-effective energy saving in the building sector is a high priority in Europe; The European Union has set ambitious targets for buildings’ energy performance in order to convert old energy-intensive ones into nearly zero energy buildings (nZEBs).
Faidra Kotarela, Anastasios Kyritsis, Nick Papanikolaou   +2 more
doaj   +1 more source

Thermal Analysis of a Parabolic Trough Collectors System Coupled to an Organic Rankine Cycle and a Two-Tank Thermal Storage System: Case Study of Itajubá-MG Brazil

Energies, 2022
This study examined an Organic Rankine Cycle powered by a parabolic trough collector and a two-tank thermal storage system based on the development of a mathematical model, for the conditions of the city of Itajubá in Brazil.
Gaylord Carrillo Caballero, Yulineth Cardenas Escorcia, Luis Sebastián Mendoza Castellanos, Ana Lisbeth Galindo Noguera, Osvaldo José Venturini, Electo Eduardo Silva Lora, Elkin I. Gutiérrez Velásquez, Anibal Alviz Meza   +7 more
doaj   +1 more source

Communication Systems in Distributed Generation: A Bibliographical Review and Frameworks

IEEE Access, 2020
The exhaustion of natural energy and oil reserves has initiated the concept of renewable energy systems (RESs). This has expanded the vision of energy sector towards a diversified power grid while introducing the distributed energy resources (DERs) and ...
Zimran Rafique, I. H. M. K. Member, I. S. M. M. Senior Member   +2 more
semanticscholar   +1 more source

GENERALIZING THE PLANCK DISTRIBUTION [PDF]

Complexity, Metastability and Nonextensivity, 2005
Along the lines of nonextensive statistical mechanics, based on the entropy $S_q = k(1- \sum_i p_i^q)/(q-1) (S_1=-k \sum_i p_i \ln p_i)$, and Beck-Cohen superstatistics, we heuristically generalize Planck's statistical law for the black-body radiation. The procedure is based on the discussion of the differential equation $dy/dx=-a_{1}y-(a_{q}-a_{1}) y^{
André M. C. de Souza, Constantino Tsallis   +1 more
openaire   +3 more sources

Reducing the Impacts of Distributed Generation in Transmission & Distribution Networks Protection Using Fault Current Limiters [PDF]

Engineering and Technology Journal, 2013
Increase in power generation capacity of electric power systems has lead to increase in the fault current level. In some cases fault current levels are exceeding the interrupting capability of existing transmission and distribution substations circuit ...
Wafaa Saeed
doaj   +1 more source