Natural Convection from Circular Cylinders

analysis. In addition he has filed 34 patents in the field of TDHPs. He has been carrying out and leading scientific activities in the framework of National and International programs, in co-operation with industries and research groups. He is a member of the expert group responsible for issuing the European standard EN12309;2013 for evaluating the seasonal performance of gas-driven heat pumps. He has been participating in the IEA-Task 34 for TDHPs

Dr.-Eng. Lucio Bonaccorsi graduated with an M.D.in Chemical Engineering from the University of Pisa, PhD in "Chemistry of Materials for Special Applications". He worked five years as process engineer for the UOP Molecular Sieves Spa, a partnership company of the UOP LLC group (1995-2000). M.D. "Six Sigma Process Improvement" on statistic methodologies for industrial experimentation (1997). In July 2000 he started working as Researcher Engineer in Material Science at the Faculty of Engineering of the University of Messina. He is "associated professor" at the CNR-ITAE institute. The scientific activity of Dr.-Ing. Bonaccorsi mainly concerns the synthesis and characterization of microporous materials with conventional and microwave methodologies. He is author of more than 50 printed papers.

Dipl.-Eng. Stefanie Chmielewski (Stefanie Lohmöller) studied energy engineering and graduated from RWTH-Aachen University, Germany in 2006. Her diploma thesis concerned the investigation of the evaporator size as well as the zeolite mixture and their influence on the potential of a two modular adsorption heat pump working with the thermal wave concept. Since 2006 she is working at the Viessmann Werke in Allendorf/Eder, Germany as a development engineer and since 2009 as a team leader for the development of a zeolite-water adsorption heat pump module. She contributed on several papers and patents in the field of TDHPs and co-authored a book (VDI project final report) on the development of a gas driven zeolite adsorption heat pump in 2011. She has been participating in the IEA-Annex 34 for TDHPs

Dr.-Eng. Andrea Frazzica graduated in Material Engineering at the University of Messina, Italy, in 2008. He completed his PhD in Chemical and Materials Engineering at the University of Messina in 2012. Currently he is working as post-doctor researcher at the Italian National Council of Research - Institute for Advanced Energy Technologies (CNR-ITAE), Messina. The scientific activity of Dr.-Eng. Andrea Frazzica is mainly focused on the development and characterization of adsorbent materials and components for TDHPs and on advanced materials and systems for thermal energy storage. He published more than 30 printed papers.

Dr.-Eng. Luigi Calabrese is a researcher at the University of Messina. He graduated in Material Engineering, Messina, Italy in 1998, received a PhD in Materials Chemistry and Engineering from University of Messina, in 2002. Currently he is researcher in Material Science and technology area at the Department of Electronic, Industrial Chemistry and Engineering of the University of Messina. His major research interests are in the field of Materials Science and Technology, mainly in the composite coating area. Currently he is the author or co-author of more than 100 articles, including 34 articles in reviewed scientific journals and 40 articles in international conferences.

Dr.-Eng. Giovanni Restuccia graduated in engineering. He is a researcher of the National Council of Research (CNR) Institute of Advanced Technologies for Energy (ITAE) since its establishment in the early 80 years.           From 1997 to 2012 he managed the research group of ITAE on thermally driven heat pumps developing research projects supported by European Commission, international organisations and national public organizations or supported by private companies.                 He was component of the scientific committee of the national Department "Energy and Transportation" of the CNR. He is the Italian representative in the Executive Committee of the Heat Pump Programme of the International Energy Agency. Now he is director of ITAE. He is the author of more than 180 printed papers and 6 patents.