Hybrid Photovoltaics Articles

  • Hybrid wavelet-support vector machine approach for modelling rainfall–runoff process

    Because of the importance of water resources management, the need for accurate modeling of the rainfall–runoff process has rapidly grown in the past decades. Recently, the support vector machine (SVM) approach has been used by hydrologists for rainfall–runoff modeling and the other fields of hydrology. Similar to the other artificial intelligence models, such as artificial neural network (ANN) ...


    By IWA Publishing

  • Hybrid System in Fiji: The Sun Saves Fuel

    When you think of Fiji, you first think of vacation, wonderful beaches with palms and crystal clear water with perfect spots for scuba diving. We also thought of energy: Energy that could help build a more ecological electrical power supply. The existing power supply on the three separate islands of Kadavu, Lakeda and Rotuma around the Fijian mainland had been fully based on diesel generators. ...


    By SMA Solar Technology AG

  • A hybrid MILP-LP-LP approach for the optimal design and operation of unconfined groundwater utilization systems

    This paper proposes a hybrid mixed-integer linear programming-linear programming-linear programming (MILP-LP-LP) methodology for simultaneous optimal design and operation of unconfined groundwater utilization systems. The proposed model is an extension to the earlier LP-LP model introduced by the authors for the optimal design and operation of confined groundwater utilization systems. The ...


    By IWA Publishing

  • Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO

    In this work, a hybrid of chromium(III) terephthalate metal organic framework (MIL-101) and graphene oxide (GO) was synthesized and its performance in the removal of azo dyes (Amaranth, Sunset Yellow, and Carmine) from water was evaluated. The adsorption for azo dyes on MIL-101/GO was compared with that of MIL-101, and it was found that the addition of GO enhanced the stability of MIL-101 in ...


    By IWA Publishing

  • A hybrid cuckoo–harmony search algorithm for optimal design of water distribution systems

    Meta-heuristic algorithms have been broadly used to deal with a range of water resources optimization problems over the past decades. One issue that exists in the use of these algorithms is the requirement of large computational resources, especially when handling real-world problems. To overcome this challenge, this paper develops a hybrid optimization method, the so-called CSHS, in which a ...


    By IWA Publishing

  • Hybrid wavelet-GMDH model to forecast significant wave height

    In this study, the group method of data handling (GMDH)-based wavelet transform (WT) was developed to forecast significant wave height (SWH) in different lead times. The SWH dataset was collected from a buoy station located in the North Atlantic Ocean. For this purpose, the time series of SWH was decomposed into some subseries using WT and then decomposed time series were imported to the GMDH ...


    By IWA Publishing

  • Fluoride removal by a hybrid fluoride-selective adsorbent

    High concentrations of fluoride in groundwater have become a global environmental challenge. Out of the various methods developed for effective removal of fluoride adsorption using activated alumina (AA) is popular as it has a low initial cost. AA offers excellent chemical and mechanical stability, selectivity for fluoride, favorable hydraulic properties, regenerability but offers lower ...


    By IWA Publishing

  • Indian Wind Power Industry 2014 Analysis

    This latest market research report titled Wind Power Market in India 2014 analyses how the renewable energy sector is gaining importance in India and how wind energy has become an indispensable part of this sector. With the gap in demand and supply of energy increasing at a steady pace, it has become necessary to look beyond conventional sources for generating energy. This has led to a shift in ...


  • Optimal sizing of a hybrid energy system for a semi-arid climate using an evolutionary algorithm

    The use of a genetic algorithm (GA) for optimal sizing of an off-grid hybrid renewable energy system (HRES) is reported. As a pre-feasibility analysis and to determine the appropriate HRES type to be studied, wind energy potential and solar irradiation are first examined for the considered region (Tehran, Iran). These are inputs of the algorithm, and are assessed throughout a year utilising ...


    By Inderscience Publishers

  • A new hybrid algorithm for rainfall–runoff process modeling based on the wavelet transform and genetic fuzzy system

    In this paper, two hybrid artificial intelligence (AI) based models were introduced for rainfall–runoff modeling. In the first model, a genetic fuzzy system (GFS) was developed and evolved for the prediction of watersheds' runoff one time step ahead. In the second model, the wavelet-GFS (WGFS) model, wavelet transform was also used as a data pre-processing method prior to GFS ...


    By IWA Publishing

  • Flow prediction in vegetative channel using hybrid artificial neural network approach

    Channel flow–vegetation interaction has been extensively studied in the past few decades and many equations have been developed which essentially differ from each other in derivation and form. As the process is extremely complex, getting deterministic or analytical forms of process phenomena are too difficult. A hybrid neural network model (combining genetic algorithm with neural ...


    By IWA Publishing

  • Inclusion of biodiesel and PV modules in a wind diesel hybrid system supplying electrical loads on a small farm

    The growing interest in biofuels is a consequence of the need to reduce operating costs of energy systems and the need to reduce emissions of greenhouse gases. The same applies to PV modules, comprising a solution environmentally desirable for power generation. This paper presents a study on the inclusion of biodiesel and PV modules in a system already in operation on a small farm in southern ...


    By Inderscience Publishers

  • A hybrid clock group communication protocol

    In distributed systems, a group of multiple processes are required to cooperate with each other. Here, each process is peer and directly exchanges messages with other processes without centralised coordination. Each process has to causally deliver messages in a scalable group. Messages can be causally delivered to every process in linear clock (LC) and vector (VC) protocols. Here, some pair of ...


    By Inderscience Publishers

  • Solar exergy maps for photovoltaic/thermal systems

    In this paper, the thermal and electrical exergies and the exergy destructions are calculated for a photovoltaic thermal (PV/T) system based on solar exergy rates for some Indian climates namely Bangalore, Jodhpur, Mumbai, New Delhi and Srinagar for a year and for different US climates namely Chicago, Las Vegas, Miami, New York, Portland, San Antonio, San Francisco, Tucson and Tulsa for January, ...


    By Inderscience Publishers

  • A hybrid wind/solar/diesel stand alone system optimisation for remote areas in Algeria

    While Algeria has an important potential of wind and solar energies, their share in the primary energy supply is relatively low compared to the fossil energy. In this paper, we propose to carry out a techno–economical study of a hybrid stand alone system in order to draw the attention to the feasibility of such systems. For this purpose, sites of Hassi–R'mel and Adrar have been ...


    By Inderscience Publishers

  • Hybrid metaheuristics for multi-objective design of water distribution systems

    Multi-objective design of Water Distribution Systems (WDSs) has received considerable attention in the past. Multi-objective evolutionary algorithms (MOEAs) are popular in tackling this problem due to their ability to approach the true Pareto-optimal front (PF) in a single run. Recently, several hybrid metaheuristics based on MOEAs have been proposed and validated on test problems. Among these ...


    By IWA Publishing

  • Hybrid Solar/Wind plant in Madagascar

    Distinguished among the winners of the Sunidarity initiative, the World Energy Foundation announced Thursday that it had installed in the extreme south of Madagascar a concentration photovoltaic equipment (CPV) provided by Soitec, one of the leading manufacturers and suppliers of global CPV systems. Called Plug & Sun, this equipment allows an autonomous solar-electric generation in areas ...


    By Greenshine New Energy LLC

  • Hybrid model development for the decaying pollutant transport in streams

    A Hybrid Cells in Series (HCIS) model with decay (HCIS–D) has been conceptualised to simulate advection, dispersion, decay governed pollutant transport. The cells consist of a plug flow zone followed by two unequal size thoroughly mixed zones applied to steady flow and prismatic stream reaches. Compared to the analytical solution of the advection–dispersion–decay equation, the HCIS–D simulations ...


    By Inderscience Publishers

  • A hybrid multi–criteria decision support system for selection of optimum fuel blend

    The increasing diesel consumption, depletion of fossil fuels and environmental concerns have prompted usage of biodiesel. The selection of appropriate source and blending of biodiesel plays a role in alternate energy production. The aim of this study is to evaluate the optimum blend using Multi Criteria Decision Making (MCDM) technique. Five alternative fuel blends are prepared by varying the ...


    By Inderscience Publishers

  • Exergy analysis of a diesel engine operated with koroch seed oil methyl ester and its diesel fuel blends

    This study focuses on exergy analysis of a single cylinder four stroke direct injection (DI) diesel engine using 10% (B10), 20% (B20), 30% (B30) and 40% (B40) blending of Koroch seed oil methyl ester (KSOME) with conventional diesel fuel. The analysis corresponds to steady state engine operations under variable load conditions. For each fuel operation at various loads, exergetic performance ...


    By Inderscience Publishers

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