This work presents a simulation approach to the design and economic evaluation of fuel oil hydrotreating processes for the control of SO2 and NOx emission in an Iranian steam power plant. The percent of fuel oil desulphurization was estimated from the SO2 emissions standards for power plants. Based on two different scenarios according to (I) European and (II) Iranian standards, the design and s...

The development of dynamic simulation tools for fuel cell systems and fuel cell/gas turbine (FC/GT) systems is required to understand the response of fuel cell systems to both scheduled and unscheduled perturbations. These tools supply the foundation on which control strategies can be developed and tested before they are actually implemented in a physical system. For high temperature fuel cell ...

In this paper, a non-isothermal two-phase flow in the cathode gas diffusion layer (GDL) of PEM fuel cell is modeled. The governing equations including energy, mass and momentum conservation equations are solved by numerical methods. Also, the optimal values of the effective parameters such as the electrodes porosity, gas diffusion layer (GDL) thickness and inlet relative humidity are calculated...

This paper aims at estimating the efficiency of hydroelectric power plants (renewable energy resources) and thermal power plant (non-renewable energy resources) in Iranian provinces. Data Envelopment Analysis (DEA) approaches is applied to estimate the efficiency. The network is modeled as a linear system with multiple inputs and one output. Fuel cost, labor force, operation cost are used as in...

This paper presents a proposed three-Dimensional (3D) computational electrochemical simulation model for simulation and evaluation performance of Polymer Electrolyte Membrane (PEM) fuel cell. The proposed model is used to predict the output voltage, efficiency, hydrogen supply and study the transient response of PEM power plant when subjected to variable load connected to it. Additionally, the ...

Energy efficiency is ABB's business. So too is raising productivity for industry and increasing power plant output, as well as ensuring that facilities and processes operate reliably and the power grids they are connected to are stable. These four themes – energy efficiency, productivity, reliability and stability – are intimately connected. When ABB improves the energy efficiency of a power pl...

in this paper, a hybrid solid oxide fuel cell (sofc) and micro gas turbine (mgt) power system is parametrically studied to evaluate the effect of different operating conditions. the sofc/mgt power system includes sofc reactor, combustion chamber, compressor and turbine units, and two heat exchangers. the effects of fuel utilization, temperature, and pressure are assessed on performance of the h...