Based on the problems caused by today conventional vehicles, much attention has been put on the fuel cell vehicles researches. However, using a fuel cell system is not adequate alone in transportation applications, because the load power profile includes transient that is not compatible with the fuel cell dynamic. To resolve this problem, hybridization of the fuel cell and energy storage device...

Power electronics and fuel cell technologies play an important role in the field of renewable energy. The demand for fuel cells will increase as fuel cells become the main power source for portable applications. In this application, a high-efficiency converter is an essential requirement and a key parameter of the overall system. This is because the size, cost, efficiency, and reliability of th...

   A method for treating fuel oil and waste water of power plant is suggested which is including vanadium elimination through contacting with humic acid coated magnetic nano-adsorbent. The nano-adsorbent was modified with humic acid (HA) as a compound having carboxyl, hydroxyl and amin functional groups. HA/Fe3O4 nanoparticles were prepared by a co-precipitation procedure and were character...

In this paper is analyzed a fuel cell Hybrid Power Source (HPS) topology that can operate at maximum power point of fuel cell stack. The HPS power topology and its control are simulated in Matlab Simulink ® environment. The models for all used blocks are given and some control aspects are analyzed and discussed here.

Fortum Power and Heat Ltd. has revised the decommissioning plan for the Loviisa Nuclear Power Plant (Loviisa1 and Loviisa 2) at the end of the year 1998 [4-1]. The plan is based on immediate dismantlement after shutdownof the power plant. Experienced plant personnel will still be available to lead the decommissioning work. Onlythe radioactive plant systems, components and structures...

Due to long life of steam power plants in Iran, transformation of steam cycles to combined cycles is under consideration. Bandar-Abbas steam power plant with capacity of 320 MW has been analyzed in this work. This old plant is located near the harbor city of Bandar-Abbas at southern Iran. Method of exergy analysis is used to study the current and the repowered systems. Optimum state of the repo...

In the present paper. a mathematical model of a combustion steam generator is presented. The model of power plant was implemented using GE GateCycle code. The effects of Over Fire Air and Reburning combustion techniques on the plant performance were studied using from both theoretical and experimental approach. Experimental data were studied and represented depending on the combustion parameter...