This paper presents a complete case study that takes a real Fuel Display System element used in Scania Trucks and applies an unified process for modelling system requirements together with the system itself and verifying these requirements in a structured manner. In order to achieve this process the system is modeled in Modelica, and requirement verification scenarios are specified in ModelicaM...

The neutronic performance of small size critical dedicated burners is investigated here according to the type of recycling performed (MA supply alone or together with some fissile element), the nature of the possible fissile supply (Pu, enriched U, U bred from Th), the coolant type (sodium or lead). The main neutronic parameters are given, such as reactivity coefficients, together with mass bal...

Many practical applications, such as the fuel control of a gas turbine engine, can be modeled by a feedback connection of a linear controller in series with a Hammerstein system, where the nonlinearity provides a representation of the control element or actuator. An iterative gradient-based method is proposed to simultaneously identify the nonlinear fuel valve characteristic and a low-order lin...

The intelligent energy management system is operated automatically to ON and OFF the generating sources as per the load demand. The renewable energy sources used in this energy management system are solar, wind, fuel cell and energy storage element battery as an input source. These renewable energy sources are integrated into the main dc bus through dc-ac converter. Microgrid is basically a gro...

37 INTRODUCTION With the increasing dependency on automobiles and trucks to transport people and goods, signalized traffic control systems become a critical element of a transportation network. Although traffic signals are placed to regulate the flow of vehicles, negative impacts include increased travel time, fuel consumption and vehicle emissions. Optimization of signal timing has been recogn...

In this paper a proposed idle speed controller consisting of decoupled manifold pressure and spark retard control loops is presented. The controller incorporates a model predictive element in the selection of the bypass valve duty cycle, which is used to set the intake manifold pressure. A similar approach is easily adaptable to throttle by wire systems. A simulation model incorporating the cyc...

This paper describes a multi-scale modeling approach to compute the large-strain deformation of zirconium alloy cladding, which is of interest to the study of fuel rod behaviors in transient and accident conditions. A Visco-Plastic Self-Consistent (VPSC) polycrystal plasticity model representing polycrystals by weighted orientations of single crystals has been implemented as the constitutive la...

Proton exchange membrane fuel cells (PEMFC) are highly efficient power generators, being used recently in a clean hybrid power supply system. Comsol Multiphysics, a commercial solver based on the Finite Element Method (FEM) was used for developing a three dimensional model of a high temperature PEMFC in order to study operation mode and performance of the fuel cell. Cathode gas flow velocity in...

MODELING STUDIES AND NUMERICAL ANALYSES OF COUPLED PDES SYSTEM IN ELECTROHYDRODYNAMICS by Yuzhou Sun Dr. Pengtao Sun, Examination Committee Chair Associate Professor of Mathematics University of Nevada, Las Vegas, USA Electrohydrodynamics (EHD) is the term used for the hydrodynamics coupled with electrostatics, whose governing equations consist of the electrostatic potential (Poisson) equation,...