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Río Ceballos, Argentina

Degliuomini L.N.,CONICET | Biset S.,FRRo UTN | Feroldi D.,CONICET | Basualdo M.,CONICET
Green Energy and Technology | Year: 2012

In this chapter the reader can find a guide for developing a realistic computational model of BPS with PEMFC for both steady state and dynamic modes. It is performed thanks to the use of the potentiality of three very well-known softwares for the engineering community. It is assumed that the reader has some knowledge about programming in the MATLAB environment. The other two softwares are HYSYS and ADVISOR. Therefore, the main details about the engineering steps for moving from steady state to the dynamic simulation of this complex system are given. The guide includes several figures which capture the screens of the different softwares and the chosen options for each one to complete the model. The code for the communication protocol between HYSYS and MATLAB is also included. In addition, some useful references to help the readers in getting more insight into the use of the three softwares are presented. © Springer-Verlag London Limited 2012.

Degliuomini L.N.,CONICET | Biset S.,FRRo UTN | Basualdo M.,CONICET
Green Energy and Technology | Year: 2012

The aim of this chapter is to present the important aspects of the synthesis of an integrated bio-ethanol processor plant for hydrogen production with proton exchange membrane fuel cell systems. It is based on performing a proper energy integration to determine the operating point of maximum efficiency. A large review about the different techniques for obtaining hydrogen from bio-ethanol is investigated to justify the selection of a process based on steam reforming, followed by high- and low-temperature shift reactors and preferential oxidation, coupled to a fuel cell. Applying simulation techniques with HYSYS commercial software and using its specific thermodynamic models, the performance of the complete system has been evaluated for a variety of operating conditions. These models involve mass and energy balances, chemical equilibrium and feasible heat transfer conditions. The main operating points of the variables were determined for those conditions where the endothermic nature of the reformer has a significant effect on the overall system efficiency. Then, a heuristic procedure for defining a preliminary control structure is applied via a sensitivity analysis, evaluating controllability aspects for the most critical disturbances and considering the main objectives of the process. © Springer-Verlag London Limited 2012.

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