Ehab Bani-Hani

Performance of geothermal power plants (single, dual, and binary) to compensate for LHC-CERN power consumption: comparative study

The aim of this study is to compare between single flash, dual flash, and binary power plants in terms of the power generated, their performance, and the related cost. The results from the comparison are used to find the best plant type that can be implemented to compensate for the very high power requirements of a large hadron collider (LHC). Using the setting and requirements of the CERN LHC in Geneva, Switzerland, the study uses System Advisor Model software to analyze the implementation of the different plant types. Results show that the binary power plant has the best performance and lowest cost compared with other geothermal power plants analyzed, and there is a reduction in the total power generation cost when using renewable energy sources.

Feasibility of Highway Energy Harvesting Using a Vertical Axis Wind Turbine

In countries where wind energy is less feasible, an energy harvesting device such as highway wind turbines can still be used for applications where less power is needed. This energy can be harveste...

Photovoltaic System as Source of Power In Residential Buildings: Technical and Economical Study

ABSTRACTMost of the available studies in literature focus on using photovoltaic systems to partially empower buildings. Solar energy can help in providing a certain amount of power to buildings. Full dependence on solar energy to provide daily demands to power of a building is not considered due to high cost. Thus in this research, the economic aspects of using a photovoltaic system to provide the full power for Kuwait residential buildings is investigated. The technical information for the solar system is assumed to have a full economical study; the technical information include information about load, panel array sizing, battery size, selection of controller and the selection of inverter. The economic analysis includes the estimation of payback period, return on investment (ROI), net present value (NPV), and cost of electricity consumption based on Ministry of Electricity and Water (MEW) tariffs in Kuwait. Weather conditions will be included in the selection of photovoltaic system components. It was fou...

Experimental Analysis of an Improved Solar Still System with Cooling Fan and Preheating Oil

ABSTRACTThe performance of a traditional solar still system can be improved by modifying the desalination processes involved. In this work, a simple experimental model of a one-sided solar stiller is build and tested. The solar still system is modified with a solar cooling fan and a preheating solar collector. The fan is used to increase the cooling rate of external surfaces of the glass cover to increase the condensation rate of vapors and thus increase the amount of distilled water. The fan is powered by a small PVC (photovoltaic cell). In addition, the preheating solar collector uses the hydraulic oil as the working fluid for indirect heating of the feed sea water within the still device. A series of measurements consist of basin and ambient temperatures and rate of production of distillate are carried out in the winter in the State of Kuwait during November 2015 and then the results are analyzed and compared with some previously published data. It is observed that the improved solar still system produ...

Rated wind speed reality or myth for optimization in design of wind turbines

The rotor design procedure of wind turbines starts first with adopting a rated output power and a rated wind speed. There is lack of modelling to determine an optimized rated wind speed and no evidences are observed to suggest the best rated wind speed to produce maximum output power annually. For example in the market of small wind turbines, it is frequently observed that the rated wind speed is taken from small value of 8 m/s to large value of 20 m/s. To examine overall performance of these wind turbines, it is required to develop mathematical models to relate the annual power production of the wind turbines to the given rated wind speeds. By examining power curves of some small European wind turbines from 100 to 900 Watt with constant speed generators, a simplified mathematical model for power curves is introduced and combined with Weibull distribution of wind speeds. Results of the model based on a capacity factor are presented versus the rated wind speed using wind characteristics of an optional region. It is observed that between the cut-in and cut-out wind speeds, there is an optimum rated wind speed above which the annual output power production of the wind turbine remains unchanged.

Analysis of Polychlorinated Biphenyl Wastes Incineration in Rotary Kilns: Model Development and Validation

Polychlorinated Biphenyls (PCBs) are among hazardous wastes that must be incinerated for environmental and health protection. A dynamic model is introduced for the incineration of Polychlorinated Biphenyls (PCBs) in a rotary kiln. The model accounts for variations in composition and process conditions. The effects of excess air and the number of chlorine atoms in the structure of the PCBs are included in the incineration process. A MATLAB code was developed to solve the set of stiff nonlinear equations of PCBs incineration. The proposed incineration model was found to be in good agreement with the experimental data reported in the literature under ordinary feeding conditions for chlorinated compounds.