Showing papers in "Renewable Energy in 2001"

TL;DR: In this paper, a framework has been developed to identify the barriers to renewable energy penetration and to suggest measures to overcome them, which can play an important role in providing energy with sustainability to the vast populations in developing countries who as yet have no access to clean energy.

TL;DR: In this article, anaerobic digestion of energy crops and organic wastes is used to produce a clean fuel from renewable feedstocks, which would replace fossil fuel-derived energy and reduce environmental impacts including global warming and acid rain.

TL;DR: In this paper, simple Geographical Information System (GIS)-assisted wind farm location criteria were developed for the UK using information from the questionnaire and the available published literature, using two different methods to combine information layers for a site in Lancashire.

TL;DR: In this paper, the authors investigated the effect of dust accumulation on glass plates with different tilt angles and associated reduction in solar transmittance in the Minia region, middle of Egypt.

TL;DR: In this paper, the authors deal with the modelling and simulation of a hybrid photovoltaic-thermal (PV/T) solar energy system, which is a combined system consisting of a normal PV panel at the back of which a heat exchanger with fins is embedded.

TL;DR: In this paper, the physical adsorption of silica gel, working principle and features of a two-stage chiller are described, and experimental temperature profiles of heat transfer fluid inlets and outlets are presented.

TL;DR: In this paper, the influence of thermal mass and night ventilation on the maximum indoor temperature in summer was calculated and analyzed for different locations in the hot humid climate of Israel, and the results showed that the indoor temperature depends linearly on the temperature difference between day and night at the site.

TL;DR: In this article, the state of the art in self-rectifying impulse air turbines is reviewed and the optimum parameters for the fixed-guide-vane impulse turbine are also presented.

TL;DR: In this paper, an overview of the butanol (usually called acetone butanol ethanol, ABE) fermentation in various types of reactor systems and recovery by gas stripping is presented. Butanol removal by gas striping is a simple technique which does not require expensive apparatus, does not harm the culture and does not remove nutrients and reaction intermediates and reduces butanol toxicity.

TL;DR: In this paper, a mathematical model was used for estimating the total (global) solar radiation on a tilted surface, and to determine the optimum tilt angle and orientation (surface azimuth angle) for the solar collector in Brunei Darussalam on a daily basis, as well as for a specific period.

TL;DR: In this article, the authors investigated the concept of low energy building, examined how urban density might affect building energy design in high density cities, and discussed the strategies for low-energy building design in densely populated areas.

TL;DR: In this paper, an experimental setup has been installed at the Department of Electrical and Computer Engineering, University of Tehran, to verify the calculations, and some results of this test station, from March, 1999 to January, 2000 are represented in this paper.

TL;DR: The Tunnel Greenhouse Drier as mentioned in this paper is a forced convection greenhouse drier that uses a plastic greenhouse cover containing a drying tunnel made with transparent plastic walls, a line of carts with several stacked trays containing the product and moved manually inside the tunnel and an electrical fan that moves hot air from the greenhouse into the tunnel.

TL;DR: In this article, a study was done on the thermal performance of a building by TRNSYS simulation, and a shading model for windows was incorporated in it, and the shading devices adopted were external fixed horizontal louvers with different slat lengths and tilts.

TL;DR: In this paper, a fixed-bed pyrolysis experiment was conducted on a sample of cottonseed cake to determine the possibility of being a potential source of renewable fuels and chemicals feedstocks, in two different reactors, namely a tubular and a Heinze retort.

TL;DR: In this article, the processes of drying, devolatilisation and combustion of coffee husks were studied through measurements of weight-loss and particle temperatures, and axial temperature profiles in the FBC were also measured during stationary combustion conditions to analyse the location of volatile release and combustion as a function of fuel feeding mode.

TL;DR: In this article, a Life Cycle Assessment of a nanocrystalline dye sensitized solar cell (ncDSC) system has been performed, according to the ISO14040 standard, and six different weighing methods were used to rank and select the significant environmental aspects to study further.

TL;DR: In this paper, the phase change stability of myristic acid as a phase change material (PCM) has been studied experimentally and the experimental results showed that the melting stability of the PCM is better in the radial direction than the axial direction.

TL;DR: In this paper, the authors investigated the potential application of heat pipes and phase change materials for thermoelectric refrigeration and found that the heat pipe units employing heat pipe embedded fins were well suited to this application.

TL;DR: A fuzzy logic control (FLC) technique has been implemented to design the tracking controller of the WECS and its robustness and effectiveness are demonstrated by the simulation results of the controlled system.

TL;DR: In this paper, a dual fuel engine running on dual fuel of diesel and compressed natural gas is compared to the diesel engine case and the maximum pressure rise rate during combustion is presented as a measure of combustion noise.

TL;DR: In this paper, an integrated desiccant/solar collector system for production of fresh water from atmospheric air is described, which involves the absorption of water vapor from ambient air during the night and simultaneous descant regeneration and water vapor condensation during the day.

TL;DR: In this article, the graphical method for a no-blocking radial staggered layout was introduced within the joint work between the Center For Solar Energy Studies (CSES), Tripoli, and Atlantis Energy Ltd, Bern.

TL;DR: In this article, a double reflector hot box solar cooker with a Transparent Insulation Material (TIM) has been designed, fabricated, tested and the performance compared with a single reflector solar cooker without TIM.

TL;DR: In this article, a brief overview on the new advances of intelligent buildings technologies and supplementing the decision making process by adopting two methods for economical and technical aspects of IB applications is presented.

TL;DR: In this paper, the authors combine a classic free vortex model with a finite element analysis of the flow in the surroundings of the blades to predict instantaneous blade forces and near wake flow behind the rotor.

TL;DR: In this article, the authors present government and market driven programs for the promotion of renewable power generation in the United States and Europe, focusing on renewable energy generation and renewable energy technologies.

TL;DR: In this paper, the authors describe an experiment to investigate the effect of a ventilated interior courtyard on the thermal performance of a house in a hot-arid region, and the results indicate that the courtyard gives high efficiency in providing cool indoor air through cross-ventilation.

TL;DR: In this paper, the domestic load demand of rural areas which will serve as input data in the design of photovoltaic-based rural home electrification systems, and also assist governments in their rural electrification planning framework.

TL;DR: In this paper, the dynamics of a small autonomous system, comprising a diesel generator and a wind turbine, are investigated both in the frequency and time domain, using simplified models of the system components and taking into account the diesel engine speed governor and the wind turbine pitch controller.