Amine Boudghene Stambouli

Bio: Amine Boudghene Stambouli is an academic researcher from University of the Sciences. The author has contributed to research in topics: Renewable energy & Photovoltaic system. The author has an hindex of 8, co-authored 19 publications receiving 528 citations. Previous affiliations of Amine Boudghene Stambouli include University of Tsukuba & University of Science and Technology of Oran Mohamed-Boudiaf.

A review of the water-energy nexus

Abstract: Water and electricity are fundamentally linked. At a basic level electricity generation requires water, and water treatment and transportation use electricity. Historically, there has been little reason to understand the nature of these links, due largely to the presumption that water was not a threat to energy security, nor electricity a threat to water security. This presumption is now being challenged. Industry reforms, increasing demand, and more recently climate change – are bringing into sharp focus the links between water and electricity in unprecedented ways. General awareness of the links between water and electricity is increasing daily, as the ramifications of the links are being felt the world over: Society's ability to deal with the challenges and uncertainties arising from the links between water and electricity is being hindered by limited understanding of the nature of the links, and seeming lack of policy tools to effectively analyze them. This paper reviews comprehensively the links between water and electricity. Presents a classification system for identifying links. Using the classification system, this study further discusses these links by drawing upon examples from literature and follows with a synopsis of the nature of these links. With this background, the paper reviews and compares water-energy studies in terms of scope, objectives, methodologies and key findings, discusses major limitations of these studies and identifies important areas that would benefit from more in-depth research. This research contends that this type of approach is unsuitable in the longer term, particularly when examining complex and multidimensional issues like the water-energy nexus. This work suggests that the nature of the nexus should and can be explored from a wider perspective, by developing a suitable integrated methodological framework to serve as a platform for such exploration. The purpose of this paper, therefore, is to outline the development of such a framework. Introduces Integral Theory and discusses how Integral Theory has shaped the development of the methodological framework employed in this research. Presents the framework and describes the suite of methods.

Promotion of renewable energies in Algeria: Strategies and perspectives

Abstract: During the last few years, political support for renewable energies has been growing continuously both at the national and international level and most scientists now agree that the Middle East and North Africa (MENA) are perfectly placed to play a leading role in the lucrative future solar and wind power industries. The interest for the development of renewable energies was perceived very early in Algeria with the creation of the solar energy institute as soon as 1962. Algeria plays a very important role in world energy markets, both as a significant hydrocarbons producer and exporter, as well as a key participant in the renewable energy market. Due to its geographical location, Algeria holds one of the highest solar reservoirs in the world. This paper deals with a review of the present renewable energy (RE) situation and assessed present and future potential of RE sources in Algeria. It also discusses the trends and expectation in solar and wind systems applications and the aspects of future implementation of renewable energies making emphasis on the Middle East and North Africa (MENA) region status. The problem related to the use of RES and polices to enhance the use of these sources are also analysed in this paper. In addition the available capacity building, the technical know-how for each RE sources technology and localising manufacturing of RE equipments have been defined.

Proposed Methods to Increase the Output Efficiency of a Photovoltaic (PV) System

Abstract: Lately, the use of solar energy has seen considerable development. Transformation in electric energy is one of its applications which attracts considerable interest, owing to the fact that it makes it possible to solve a major problem in isolated cities that lack electrical supply networks. For solar energy use, the current drawback remains its high cost. This problem can be resolved through different improvements in terms of power production. For that, different axis of research can be explored (1-3). Over the past few years, solar cells arrays (SCA) have been connected to various loads in a direct coupled method. A PV module can produce the power at a point, called an operating point, anywhere on the current- voltage (I-V) curve. The coordinates of the Operating point are the operating voltage and current. There is a unique point near the knee of the I-V curve, called a maximum power point (MPP), at which the module operates with the maximum efficiency and produces the maximum output power. The point of maximum power is the desired operating point for a PV array to obtain maximum efficiency. A PV array is usually oversized to compensate for a low power yield during winter months. This mismatching between a PV module and a load requires further over-sizing of the PV array and thus increases the overall system cost (3-5). To mitigate this problem, different methods have been developed (6-12). A maximum power point tracker (MPPT) can be used to maintain the PV module's operating point at the MPP. The system in a direct coupled method cannot always operate at maximum power point (MPP) of the solar array when the load, irradiance or temperature changes. A PV-load coupling system should be able to maximize the energy output of the PV generator, which should operate always at its maximum power point (MPP) in order to achieve maximum global efficiency. Some authors have supported the direct coupling between the PV generator and the load (2-3). Several methods and algorithms to track the maximum power point have been developed (2-12). We focused our effort on improving the matching between PV sources and loads through the development of new performing methods. In this paper, a rapid approach for peak power tracking is proposed. The system PV generator - load is optimized, when the working point in direct coupling is quite near the MPP of the PV generator, so that the global efficiency of the system is acceptable. Another method is proposed. It is based on reconfiguring on-line the SCA by changing the connections between different modules in

Simultaneous production of fresh water and electricity via multistage solar photovoltaic membrane distillation

Abstract: The energy shortage and clean water scarcity are two key challenges for global sustainable development. Near half of the total global water withdrawals is consumed by power generation plants while water desalination consumes lots of electricity. Here, we demonstrate a photovoltaics-membrane distillation (PV-MD) device that can stably produce clean water (>1.64 kg·m−2·h−1) from seawater while simultaneously having uncompromised electricity generation performance (>11%) under one Sun irradiation. Its high clean water production rate is realized by constructing multi stage membrane distillation (MSMD) device at the backside of the solar cell to recycle the latent heat of water vapor condensation in each distillation stage. This composite device can significantly reduce capital investment costs by sharing the same land and the same mounting system and thus represents a potential possibility to transform an electricity power plant from otherwise a water consumer to a fresh water producer. The increasing demand for energy and clean water has become a grand global challenge. Here the authors develop a membrane-distillation device that exploits sunlight and the heat dissipated by an integrated solar cell unit, enabling simultaneous efficient production of electricity and drinkable water.