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Ghani S.,Sheffield Hallam University | Al-Deffeeri N.S.,Ministry of Electricity and Water
Desalination | Year: 2010

This paper describes and compares the thermal schemes, thermal efficiency and thermal performance ratios of three different antiscalants (scale inhibitors) of 7.2 MIGPD Multi Stage Flash (MSF) distillers which have operated satisfactorily for an extremely long period. The evaluation tests conducted on the Multi Stage Flash (MSF) distillers revealed that all the examined antiscalants were successful in inhibiting alkaline scale formation and improving plant performance at top brine temperature ranging between 105 °C and 110 °C with respective dosing rates of 1.5 and 3.0 ppm. © 2009 Elsevier B.V. All rights reserved. Source


Bourisli R.I.,Kuwait University | Al-Shammeri B.S.,Ministry of Electricity and Water | Alanzi A.A.,Kuwait University
AIP Conference Proceedings | Year: 2012

The least squares method (LSM) is used to optimize the coefficients of a closed-form correlation that predicts the annual energy use of buildings based on key envelope design and thermal parameters. Specifically, annual energy use is related to a number parameters like the overall heat transfer coefficients of the wall, roof and glazing, glazing percentage, and building surface area. The building used as a case study is a previously energy-audited mosque in a suburb of Kuwait City, Kuwait. Energy audit results are used to fine-tune the base case mosque model in the VisualDOE{trade mark, serif} software. Subsequently, 1625 different cases of mosques with varying parameters were developed and simulated in order to provide the training data sets for the LSM optimizer. Coefficients of the proposed correlation are then optimized using multivariate least squares analysis. The objective is to minimize the difference between the correlation-predicted results and the VisualDOE-simulation results. It was found that the resulting correlation is able to come up with coefficients for the proposed correlation that reduce the difference between the simulated and predicted results to about 0.81%. In terms of the effects of the various parameters, the newly-defined weighted surface area parameter was found to have the greatest effect on the normalized annual energy use. Insulating the roofs and walls also had a major effect on the building energy use. The proposed correlation and methodology can be used during preliminary design stages to inexpensively assess the impacts of various design variables on the expected energy use. On the other hand, the method can also be used by municipality officials and planners as a tool for recommending energy conservation measures and fine-tuning energy codes. © 2012 American Institute of Physics. Source


Al-Fedaghi S.,Kuwait University | Faihan F.,Ministry of Electricity and Water
International Review of Automatic Control | Year: 2013

The latest progress in industrial control systems is to implement information technology solutions to support such features as administrative control based on network-based information connectivity. This paper focuses on an electrical power grid as a sample of such systems. A fundamental understanding of grid information hierarchy is essential to meet new challenges due to increasing needs of grid efficiency, flexibility, and control, and greater security risks and reliability challenges for large cyber-physical systems. Methods used in visualizing and representing electrical grids are an important tool for achieving comprehension and facilitating control (e.g., UML use cases). The problem is that current high-level representation grids are a heterogeneous mix of diagrams (e.g., UML use cases) flowcharts, graphs, technical drawings, and maps that do not furnish a base on which to discuss the characteristics, uses, behavior, interfaces, requirements, and standards of the grid. This paper proposes a solution in the form of a conceptual diagrammatic specification of grid architecture and applies it to the electric grid in the state of Kuwait. The approach is the skeleton of a method based on generic stages that make up any process and embraces input, processing, creation, and output. It provides a base that can be supplemented with extra notions from various current diagrammatic methods. The results indicate the viability of the proposed method as a foundation for zooming in and out on specifications of the grid in a uniform way. © 2013 Praise Worthy Prize S.r.l. - All rights reserved. Source


Al-Deffeeri N.S.,Ministry of Electricity and Water
Desalination and Water Treatment | Year: 2013

This paper is highly concerned with analytical chemical results which are obtained at Doha West Power Station in Kuwait and summarizes the various chemical techniques that carried out at laboratory to emphasize the quality of distilled water through distillation process of the station such as; pH, specific conductivity, iron, copper, silica, total hardness, and chloride during operation. © 2013 Desalination Publications. All rights reserved. Source


Bou-Rabee M.A.,College of Technological Studies | Sulaiman S.A.,Petronas University of Technology | Choe G.,Konkuk University | Han D.,Konkuk University | Marafie S.,Ministry of Electricity and Water
International Journal of Automotive and Mechanical Engineering | Year: 2015

The energy received by solar collectors for power generation is limited to various conditions. The average data on solar irradiation are normally used to determine the potential of solar energy at any location. However, the variation of solar energy due to seasonal differences could affect the actual performance of the collectors, consequently leading to poorly justified system installations, which are high in cost. In this work, the characteristics of solar energy radiation in Kuwait were studied by measuring irradiance and comparing the data of selected time periods in two extreme seasons. A pyranometer, mounted two meters above the ground on a tubular beam in a shade-free area at a solar energy laboratory in Kuwait was used to measure irradiance on three consecutive days in summer and winter. The radiation data were recorded at five-minute intervals in each season for comparison. It was found that the average irradiance energy in the winter was up to 61% less than in the summer. In addition, the study revealed that the day-to-day variation of irradiance in winter (31%) was approximately 6.5 times higher than in the summer (4.8%). Clearly, the operation of solar power generation systems in the area during winter would face significant day-to-day fluctuations. As a result, this would necessitate frequent operation of backup power systems in order to meet the electrical power load demand. © Universiti Malaysia Pahang. Source

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