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Showing papers in "Energy Procedia in 2012"


Journal ArticleDOI
TL;DR: In this paper, a review of the properties and effects of additives reported in the literature can be found in Section 3.1.1, where the capacities of additives to reduce ash related problems are heavily influenced by mass/molar ratios between the reactive components in the additives and the problematic elements in the biomass ash, as well as the reaction atmosphere and combustion technology.

263 citations


Journal ArticleDOI
TL;DR: The Drake Landing solar community in Okotoks, Alberta, Canada utilizes a solar thermal system with borehole seasonal storage to supply space heating to 52 detached energy-efficient homes through a district heating network.

260 citations


Journal ArticleDOI
TL;DR: In this article, the authors reviewed the history and recent developments of Biodiesel, including the different types of biodiesel, the characteristics, processing and economics of the biodiesel industry.

256 citations


Journal ArticleDOI
TL;DR: A method based on hybrid model of ARIMA and SVMs to forecast the daily load and then uses SVMs, which is known for the great power to learn and generalize, to correct the deviation of former forecasting achieves the forecasting accuracy and has very good prospective in applications.

188 citations


Journal ArticleDOI
TL;DR: In this article, the authors provided a set of analytical equations to estimate the net power density obtainable from RED stacks with spacers and RED stack with profiled membranes, and they showed that the obtained maximum power density is 2.7 W/m2.

161 citations


Journal ArticleDOI
TL;DR: In this paper, the effect of nano-CaCO3 (NC) on properties of cement paste was studied and the early hydration of cement was activated by NC, and the flexural and compressive strength of hardened cement paste increased with the addition of NC at the age of 7d and 28d.

152 citations


Journal ArticleDOI
TL;DR: In this article, the authors compared the effectiveness of different decomposition gas analysis methods for interpreting transformer conditions and concluded that decomposition is a sensitive and reliable technique for detecting incipient fault conditions in oil-immersed transformers.

142 citations


Journal ArticleDOI
TL;DR: In this article, an advanced parameterization of the intrinsic lifetime in crystalline silicon at 300 K was developed as a function of the doping density and the injection level, which accounts for Coulombenhanced Auger recombination and Coulomb-enhanced radiative recombination.

138 citations


Journal ArticleDOI
TL;DR: In this article, the reflection and absorption losses of textured Si wafers coated with various SiNx films are quantified using 2D modeling. And it is shown that very good optical and excellent surface passivation quality can be realized on textured silicon wafer using inline deposited plasma silicon nitride, which is the state-of-the-art antireflection coating for silicon wafer solar cells.

132 citations


Journal ArticleDOI
TL;DR: In this article, the suitability of the adsorbent was tested by fitting the adsorption data with four isotherms, namely Freundlich, Langmuir and Temkin.

121 citations


Journal ArticleDOI
TL;DR: In this paper, the authors focused on the analysis of the effect of green facades systems on the building temperature and addressing different types of green facade systems and their thermal effect, which is very important during summer periods in hot climates.

Journal ArticleDOI
TL;DR: In this article, a brief overview of photoluminescence imaging applications in solar cell manufacturing at an early stage of the PV value chain, specifically the characterisation of silicon bricks and ingots prior to wafer cutting and of as-cut wafers prior to solar cell processing.

Journal ArticleDOI
TL;DR: The Department of Energy's (DOE) hydrogen and fuel cell activities are presented, focussing on key targets and progress as discussed by the authors, along with the status of hydrogen-related technologies and cross-cutting activities.

Journal ArticleDOI
TL;DR: In this article, Nitrogen-doped nano-particles were successfully synthesized by the addition of ammonia water, which could effectively inhibit the phase transformation of TiO2 from anatase to brookite, enhance light absorption in visible region.

Journal ArticleDOI
TL;DR: In this paper, an experimental investigation on heat transfer and pressure drop characteristics of turbulent flow n a heating tube equipped with perforated twisted tapes with parallel wings for Reynolds number between 500 and 20500.

Journal ArticleDOI
TL;DR: In this article, the authors have modeled the IEEE 34 Node distribution test feeder using the commercial software package DIgSILENT power factory version 14.0 and analyzed the impact of DG on real and reactive power losses, voltage profile, phase imbalance and fault level of distribution system.

Journal ArticleDOI
TL;DR: In this paper, Fourier Transform Infrared Spectroscopy (FTIR) was used to investigate the chemical modifications of wood forming tissue from Pinus koraiensis under different stem inclined angle.

Journal ArticleDOI
TL;DR: In this paper, the use of ion-implantation for high-volume manufacturing of silicon solar cells is presented, which provides a unique opportunity to obtain grid-parity because it simplifies the fabrication of advanced cell structures.

Journal ArticleDOI
TL;DR: An overview of the state-of-the-art in voltage source HVDC at the present time is provided in this article, where the importance of reliability, particularly of the cable, is highlighted and the issues surrounding cable modelling are briefly discussed.

Journal ArticleDOI
TL;DR: In this paper, the effect of impurities on the solar cell efficiencies and the impurity contents in silicon materials are studied and the chemical and metallurgical processes that can be applied to purify and upgrade MG-Si to solar grade silicon are reviewed and evaluated.

Journal ArticleDOI
TL;DR: In this article, the combustion characteristics and emissions of a compression ignition diesel engine were measured using a biodiesel as an alternative fuel, and the results showed that biodiesel provided significant reductions in CO, and unburned HC, but the NOx was increased.

Journal ArticleDOI
TL;DR: In this article, a broad overview on current developments on materials including the new class of metal-organic frameworks for the use in adsorption processes for heat storage and transformation is given. But, most of the available adsorbents like zeolites were not optimized for use in these processes as they originally had been developed for gas separation or catalysis processes.

Journal ArticleDOI
TL;DR: In this article, the authors present a balance of the positive and negative environmental aspects of the construction and operation of hydroelectric reservoirs based on the large experience accumulated through research and consulting projects developed at Universidade Federal de Minas Gerais.

Journal ArticleDOI
TL;DR: In this paper, the authors present a global approach, starting with the presentation of general failure reasons, and a classification of those factors, which provides the basis for weathering analyses in the lab.

Journal ArticleDOI
TL;DR: In this article, the current state-of-the-art of building integrated photovoltaic (BIPV) systems are summarized, including both BIPV foil, tile, module and solar cell glazing products.

Journal ArticleDOI
TL;DR: In this paper, an attempt has been made to study the effect of water depth on the internal heat and mass transfer in the single basin double slope (DS) solar still, and the results indicated that decrease in depth of basin water resulted with increase in productivity of the still.

Journal ArticleDOI
TL;DR: In this paper, the structural and electronic properties of amorphous TiO2 were investigated through density functional theory calculations, and it was shown that amorphus may prove to be a cheaper, more abundant, but somewhat less efficient photocatalyst as compared to crystallineTiO2.

Journal ArticleDOI
TL;DR: In this paper, a simple model that may explain the potential induced degradation effect in solar cells through induced negative charges at the SiNx/Si interface was proposed, where the shunted regions of the solar cells show an accumulation of alkali metals at the interface of the front side coatings of the polysilicon solar cell.

Journal ArticleDOI
TL;DR: In this paper, the authors proposed a methodology for designing a stand-alone hybrid PV/wind/diesel/battery minimizing the Levelized Cost of Energy (LCE) and the CO2 emission using genetic algorithm.

Journal ArticleDOI
TL;DR: In this article, a tool has been developed and implemented in MATLAB to simulate the operating phase of a wind farm with special emphasis toward the modeling of failures and repair, and a quantification of potential cost savings due to an increase in availability is also stated.