In this paper, results ofa new sand filter design were presented. The drawer compacted sand filter (DCSF) is a modified design for a sand filter in which the sand layer is broken down into several layers, each of which is 10 cm high and placed in a movable drawer separated by a 10 cm space. A lab-scale DCSF was designed and operated for 330 days fed by synthetic grey water. The response of draw...

In hybrid electric vehicles (HEVs), the power network takes an ever-important role, which functions to adjust the engine operating region for less emissions, to incorporate the electric machine for higher overall efficiency, and to feed the increasing demand of electric loads with different voltage levels. Furthermore, more and more mechanically, pneumatically or hydraulically driven systems ar...

This project describes the electricity demand and energy consumption management system and its application to Southern Peru smelter. It is composed of an hourly demand-forecasting module and of a simulation component for a plant electrical system. The first module was done using dynamic neural networks with backpropagation training algorithm; it is used to predict the electric power demanded ev...

UAV Unmanned Aerial Vehicle is very rapidly growing area of flying objects. Various tasks and possible areas of UAVs use are generating increasing demand for various types and designs. Thanks to simpler certification requirements UAV market could be used as a test field for various new technologies like wide use of modern electric systems. One of the area where electric systems could be impleme...

Demand response Allows the management of customer consumption of electricity in response to supply conditions. Distributed generation Electric energy that is distributed to the grid from many decentralized locations, such as from wind farms and solar panel installations. Distribution grid The part of the grid dedicated to delivering electric energy directly to residential, commercial, and indus...

As the aerospace industry is moving towards the More Electric Aircraft, there is a growing demand for electrical power to feed the increasing electrical loads in the aircraft. More Electric Aircraft (MEA) and More Electric Engine (MEE) are terms that are sometimes mistakenly being used interchangeably, but that are actually very different. This paper outlines some of the issues that have been c...

Microgrid and smart electrical grids are among the new concepts in power systems that support new technologies within themselves. Electric cars are some advanced technologies that their optimized use can increase grid efficiency. The modern electric cars sometimes, through the necessary infrastructure and proper management, can serve as an energy source to supply grid loads. This study was cond...

An electric pacemaker may, under certain circumstances, compete with an intrinsic cardiac rhythm and share control of the heart. Should an electric stimulus fall in the vulnerable phase of the ventricular cycle, potentially dangerous arrhythmias may be provoked (Sowton, 1965; Siddons and Sowton, 1967; Bilitch, Cosby, and Cafferky, 1967). " Ventricular-programmed " or " demand " pacemakers, whic...

Introduction Public concerns about the adverse environmental and health effects of using fossil fuels to generate electricity have led to a greater dependence on renewable sources of generation, particularly in Europe. Since most of these sources are inherently variable, the electric utility industry is facing new challenges for balancing demand and supply in the real-time operations and market...