HSZG international
Thermodynamics researchers from Zittau/Görlitz University of Applied Sciences are presenting their research findings in the U.S., Canada, and Sweden.
19th Symposium on Thermophysical Properties in Boulder, Colorado, USA
From the Technical Thermodynamics Department in the Faculty of Mechanical Engineering, Prof. Dr.-Ing. habil. Hans-Joachim Kretzschmar, Dr.-Ing. Sebastian Herrmann, and Diplom-Ing. (FH) Matthias Kunick attended the most prestigious international conference in the field of thermophysical properties of gases, liquids, and solids. This conference takes place every three years.
Mr. Kunick presented the method developed by the Technical Thermodynamics Department for the rapid calculation of material properties of working fluids in energy technology using spline interpolation. This method, developed as part of his collaborative doctoral program with the Technical University of Dresden and the German Aerospace Center (DLR), is particularly well-suited for calculating the material properties of real gases and liquids in numerical flow simulations.
Dr. Herrmann presented a newly developed calculation equation for the dynamic viscosity of propane. Dr. Herrmann laid the groundwork for developing such transport correlations as part of his doctoral studies at the University of Rostock, which he completed with honors this past spring. He completed this work while serving as a research assistant and instructor at Zittau/Görlitz University of Applied Sciences.
An international industry standard adopted as early as 2013 by the International Association for the Properties of Water and Steam (IAPWS) for calculating the thermodynamic properties of seawater in desalination plants and power plant cooling systems was presented as a poster presentation. This standard was developed at the Department of Technical Thermodynamics at Zittau/Görlitz University of Applied Sciences by Dr. Herrmann in cooperation with the Leibniz Institute for Baltic Sea Research in Warnemünde and Ruhr University Bochum.
Two posters and a computer presentation showcased material property calculation programs developed in recent years at the Department of Technical Thermodynamics under the direction of Prof. Kretzschmar. Interfaces for these material property programs were presented for many software products used in everyday engineering work, such as Excel, MATLAB, and Mathcad.
15th Meeting of the International Association for Transport Properties in Boulder, Colorado, USA
Dr. Herrmann attended the 15th workshop of the International Association for Transport Properties (IATP) in Boulder to initiate potential new research projects at the Department of Technical Thermodynamics in the field of transport properties of gases and liquids. At this year’s conference, Dr. Herrmann was admitted as a member of the IATP.
IAPWS 2015 Annual Conference in Stockholm, Sweden
Prof. Kretzschmar and Mr. Kunick attended the annual conference of the International Association for the Properties of Water and Steam (IAPWS). Prof. Kretzschmar is the elected Vice President of the IAPWS and Chair of the German National Committee. The calculation method developed at Zittau/Görlitz University of Applied Sciences for rapid property value calculation using spline interpolation was adopted by the IAPWS as an internationally binding guideline for property value calculation in Computational Fluid Dynamics (CFD) and transient process simulations. This achievement represents a significant success for the work in the field of material property thermodynamics within the Department of Technical Thermodynamics. It was decided that the next annual conference of the IAPWS will be organized by Zittau/Görlitz University of Applied Sciences in Dresden in 2016.
ASME Turbo Expo 2015 in Montreal, Canada
With over three thousand participants, the ASME Turbo Expo is the world’s largest conference in the field of turbomachinery. One of its key focuses is numerical flow simulation using Computational Fluid Dynamics (CFD). These exceptionally complex process simulations require highly accurate computational algorithms capable of calculating the thermophysical properties of the working fluids used extremely quickly. To this end, Mr. Kunick developed the spline-based material property calculation method SBTL as part of a collaborative Ph.D. program between the Technical University of Dresden and the University of Applied Sciences Zittau/Görlitz. The results were presented in a talk and the accompanying publication at the ASME Turbo Expo 2015. In the discussions that followed, potential follow-up projects were discussed with representatives from well-known companies.
2015 ASHRAE Conference in Atlanta, USA
At the conference of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) in Atlanta, Dr. Herrmann presented calculation programs for the thermodynamic properties of humid air that were developed at Zittau/Görlitz University of Applied Sciences. Another important aspect of the participation was the collaboration on a research project aimed at developing a new ASHRAE standard for calculating the thermodynamic properties of humid air. Based on this work, ASHRAE commissioned another research project in the field of transport properties (thermal conductivity and viscosity).
Photos: Prof. Dr.-Ing. habil. Hans-Joachim Kretzschmar, Diplom-Ingenieur (FH) Matthias Kunick, Dr.-Ing. Sebastian Herrmann
Contact:
Prof. Dr.-Ing. habil. H.-J. Kretzschmar
Faculty of Mechanical Engineering
Department of Technical Thermodynamics
Phone and Fax: 03583-61-1846
Email: hj.kretzschmar@hszg.de
Website: www.thermodynamik-zittau.de
