Authors: S Sadeghi M Ameri
Publish Date: 2014/01/23
Volume: 28, Issue: 1, Pages: 387-398
Abstract
Nowadays the use of solar panels for generating electricity is common Given the discontinuous nature of solar energy the use of batteries to store energy in the day and supply it at night is essential However using one auxiliary power system APS can reduce the number of solar panels needed reduce the cost and increase reliability In this study the combination of different auxiliary systems with solar panels and batteries is compared in terms of economical efficiency ecological compatibility and reliability Auxiliary systems include diesel generator gas generator solid oxide fuel cell SOFC and micro gas turbine Of course in this study the effect of fuel price technology development in SOFC cost change in the power of auxiliary power system and also change in the maximum number of panels have been considered A multiobjective evolutionary algorithm was used to obtain the best solutions of every configuration The evolutionary algorithm is Pareto envelopebased selection algorithm PESA According to the results and necessity of using a backup power generator the most ecological and economical recommended hybrid system is the hybrid system with target SOFC Therefore if SOFC technology develops rapidly using SOFCs as the auxiliary system will be cheaper than others and ecologically the most compatible Also from ecological point of view the use of systems such as gas generators or diesel generators is not justifiedS Sadeghi is a Ph D candidate in mechanical engineering in the faculty of engineering Shahid Bahonar university Kerman Iran He received his MsC degree from Shahid Bahonar university of Kerman in 2009 Now he is working on his PhD thesis which is about multiobjective optimization of hybrid power generation systemsM Ameri is a Associate Professor of mechanical engineering at Shahid Bahonar university of Kerman contributed to teaching in thermofluid flows at both undergraduate and postgraduate degrees Conducted theoretical and experimental research in energy renewable energy and solar energy obtained PhD in mechanical engineering from Isfahan university of Technology Iran in 1998 He has several published papers about renewable and solar energy
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