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Showing papers in "Renewable Energy in 2008"


Journal ArticleDOI
TL;DR: In this paper, a comparison of support schemes for market-based deployment of renewable energy in the UK and Germany shows that the feed-in tariff reduces costs to consumers and results in larger deployment.

593 citations


Journal ArticleDOI
TL;DR: In this article, two different diesel fuels were blended with the biodiesels produced from six different vegetable oils (sunflower, canola, soybean, cottonseed, corn oils and waste palm oil), and the key fuel properties such as density and viscosities of the blends were measured by following ASTM test methods.

540 citations


Journal ArticleDOI
TL;DR: In this article, a triple multi-objective design of isolated hybrid systems minimizing the total cost throughout the useful life of the installation, pollutant emissions (CO2) and unmet load is presented.

476 citations


Journal ArticleDOI
TL;DR: In this paper, the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge oil, Jatropha oil and sesame oil were presented and discussed.

428 citations


Journal ArticleDOI
TL;DR: In this paper, the authors developed a blade element momentum (BEM) model for the hydrodynamic design of marine current turbines, which includes routines for interpolation of 2D section data and extrapolation for stall delay.

352 citations


Journal ArticleDOI
TL;DR: In this article, the performance and emission characteristics of linseed oil, mahua oil, rice bran oil, and Linseed oil methyl ester (LOME), in a stationary single cylinder, four-stroke diesel engine and compare it with mineral diesel were investigated.

344 citations


Journal ArticleDOI
TL;DR: In this article, the use of methyl ester obtained from waste frying oil (WFO) is examined as an experimental material and the results obtained with the aim of comparison from the measures of torque, power, and specific fuel consumptions are nearly the same.

338 citations


Journal ArticleDOI
TL;DR: In this paper, a Monte Carlo simulation method is used for the optimal placement and arrangement of wind turbines in a wind park, based on the mean of maximum energy production and minimum cost installation criteria.

321 citations


Journal ArticleDOI
TL;DR: In this paper, performance and emission analyses carried out in an unmodified diesel engine fueled with Pongamia pinnata methyl ester (PPME) and its blends with diesel.

315 citations


Journal ArticleDOI
TL;DR: In this paper, the potential of semi-continuous mesophilic anaerobic digestion (AD) for the treatment of solid slaughterhouse waste, fruit-vegetable wastes, and manure in a co-digestion process has been experimentally evaluated.

313 citations


Journal ArticleDOI
TL;DR: In this article, several mature photovoltaic technologies, ranging from silicon to thin films, and solar concentrator systems are analyzed, and the estimates of the energy production limits are established for each technology, based on available global material reserves.

Journal ArticleDOI
Xingzhong Yuan1, Jia Liu1, Guangming Zeng1, Jingang Shi1, Jingyi Tong1, Guohe Huang1 
TL;DR: In this paper, waste rapeseed oil with high free fatty acids (FFA) was used as feedstock for producing biodiesel and the response surface methodology was used to optimize the conditions for the maximum conversion to biodiesel.

Journal ArticleDOI
TL;DR: In this paper, a feasibility analysis of renewable energy supply (RES) for a stand-alone supply large-scale tourist operation (with over 100 beds) is provided. But, due to the limited number of RES case studies in tourist operations and the absence of studies for large resorts, requiring facilities with a higher degree of comfort such as air-conditioning, it is not possible to establish with confidence the viability of RES in this industry.

Journal ArticleDOI
TL;DR: In this paper, the authors have applied this concept for assessment of the wind energy output of wind farms in Muppandal, Tamil Nadu (India), where field data are collected from seven wind farms at this site over a period of 3 years from April 2002 to March 2005 and used for the analysis and prediction of power generation from wind farms.

Journal ArticleDOI
TL;DR: In this article, the performance of 12 models to estimate hourly diffuse solar irradiation on inclined surfaces from those measured on horizontal surfaces was evaluated and the results showed that all models produce large errors for the west-facing surface.

Journal ArticleDOI
TL;DR: In this article, a form-stable phase change material (PCM) for latent heat thermal energy storage (LHTES) in buildings is presented, where a eutectic mixture of capric acid (CA) and myristic acid (MA) is incorporated with expanded perlite (EP).

Journal ArticleDOI
TL;DR: In this paper, thermal cycling tests were performed to check the stability in thermal energy storage systems on some selected organic and inorganic phase change materials (PCMs) on the basis of thermal, chemical and kinetic criteria.

Journal ArticleDOI
TL;DR: In this article, a 3D finite element model of the borehole was used to estimate the thermal resistance of ground-coupled loop heat exchangers (GLHE), and a new estimator was proposed, the p-linear average of T in and T out with parameter p → - 1, as determined by numerical simulations.

Journal ArticleDOI
TL;DR: In this paper, the authors presented the experimental investigation of heat transfer and friction factor characteristics of a rectangular duct roughened with repeated square cross-section split-rib with a gap, on one broad wall arranged at an inclination with respect to the flow direction.

Journal ArticleDOI
TL;DR: In this paper, energy and exergy analysis for a latent heat storage system with phase change material (PCM) for a flat-plate solar collector CaCl2·6H2O was used as PCM in thermal energy storage (TES) system.

Journal ArticleDOI
TL;DR: In this paper, a new equivalent model of wind farms with doubly fed induction generator wind turbines is proposed to represent the collective response of the wind farm by one single equivalent wind turbine, even though the aggregated wind turbines operate receiving different incoming winds.

Journal ArticleDOI
TL;DR: In this article, a holistic approach has been taken to utilize all components of the Jatropha fruit-shell for combustion, hull/husk for gasification, oil and bio-diesel for running CI engines, cake for production of biogas and spent slurry as manure.

Journal ArticleDOI
TL;DR: In this article, the use of glycerin as a biorenewable substrate for hydrogen production, using a steam reforming process, has been evaluated, and the maximum hydrogen yield was obtained at 650°C with MgO supported catalysts.

Journal ArticleDOI
TL;DR: In this paper, a nonlinear expression for the optimal operating voltage is developed based on measurements of the open-circuit voltage of the photovoltaic (PV) modules, which is a combination of the nonlinear and perturbation and observation (P&O) methods.

Journal ArticleDOI
TL;DR: In this article, a turbocharged direct injection (DI) diesel engine was converted to a low heat rejection (LHR) engine and the effects of biodiesel (produced from sunflower oil) usage in the LHR engine on its performance characteristics have been investigated experimentally.

Journal ArticleDOI
TL;DR: In this paper, a simple on-line fuzzy logic-based dynamic search, detection and tracking controller is developed to ensure maximum power point (MPP) operation under excursions in solar insolation, ambient temperature and electric load variations.

Journal ArticleDOI
TL;DR: In this paper, a thermodynamic analysis is presented for an energy storage system without combustion and including thermal recuperation (adiabatic compressed air energy strong), and a storage volume is optimized and a system layout with thermal storage (TES) and variable configuration is designed.

Journal ArticleDOI
TL;DR: In this article, an integrated energy evaluation of the Patsari cookstove, an efficient wood-burning cook stove developed in Mexico that has recently obtained international recognition, in comparison to traditional cookstoves in rural communities of Michoacan, Mexico.

Journal ArticleDOI
TL;DR: In this article, the authors used a three-dimensional implicit finite difference method with rectangular coordinate system to simulate the ground temperature and the borehole temperature profile for geothermal ground heat exchanger.

Journal ArticleDOI
TL;DR: In this article, an experimental investigation has been carried out to study the heat transfer and friction characteristics by using a combination of inclined as well as transverse ribs on the absorber plate of a solar air heater.