Seminar : A Theoretical and Experimental Investigation for Testing Energy and Exergy Rating of Poly-Generation Systems
20.08.2011

Dr. Ekin Bingöl
Candidate for a Faculty Position in Mechanical Engineering Atılım University Abstract. The use of small scaled poly-generation systems

Abstract. The use of small scaled poly-generation systems especially in buildings are gaining more attention lately, due to the fact that they can produce both useful thermal energy and electricity from a single fuel source economically, with high efficiency and low emissions. In poly-generation systems the primary objective is to maximize the utilization rate of resource exergy. In this study, first and second laws of thermodynamics, accompanying with Rational Exergy Management Method (REMM) were employed in developing a MATLAB based algorithm for natural gas fired, internal combustion engine (ICE) powered poly-generation systems which are to be installed in green/high performance buildings. Two systems were studied based on a tri-generation plant to be received within the framework of the EU-FP6 HEGEL Project, tested at METU, MATPUM building. This study introduces a better definition for rating and evaluating poly-generation systems, optimizing them to minimize emissions, maximize fuel savings, and thus to accomplish an optimum sustainability metric among the factors of environment, energy, human needs and economics. Results show that with ICE poly-generation systems, exergy efficiency may increase beyond 60 %. Even at part loads, minimum values of Primary energy savings (PES) are 12.4% for Case-1 and 17.7 % for Case-2, (compared to minimum allowed 10 %). REMM efficiency and Exergy Embedded PES (PESR) evaluated by REMM are proven to be better indicators of the performance. When exergy destruction is lower, (waste heat is recovered) PESR increases significantly. PESR values are minimum 18.2 % for Case 1 and 42.4 % for Case 2, which reveals that both systems provide high performance energy generation and considerably lower emissions.
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About the Speaker. Dr. Ekin Bingöl received her BS degree in 2001, MS degree in 2004 and PhD. in 2010 from Mechanical Engineering Department at Middle East Technical University (METU), Ankara, Turkiye. Her dissertation was titled:" A Theoretical and Experimental Investigation for Developing a Methodology for Co/Poly-Generation Systems; With Special Emphasis on Testing, Energy and Exergy Rating." She studied under the supervisions of Prof. Dr. O. Cahit Eralp and Prof. Dr. Birol Kılkış. She worked as a research assistant at METU ME department between September 2001 and August 2008. Following that, she was a project engineer at TARU Engineering Inc. R&D Department located at METU-Technopolis and as an R&D engineer at METU EU Project Office for the FP6 HEGEL Project. Her fields of interest include high performance energy systems, exergy management, pipeline engineering, thermodynamics and fluid mechanics. She has completed six industrial projects in pump/compressor/gas turbine systems performance analysis and hydraulic system reliability analysis. She has published four conference papers and one SCI journal paper.