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Author |
|
| Name | Trusler, Martin |
| Research field | Mechanical Engineering |
| Career stage | professor |
| Home university/institution | Imperial College, London |
| Department/Research unit at home university/institution | - |
| Chair/Working group at home institution | - |
International activity |
|
| Country | Germany |
| Location | Bochum |
| University | Ruhr-Universität Bochum (RUB) |
| Fund Research School | VIP |
| Type of activity | research stay |
| Period |
starts 01-01-2016 ends 31-12-2018 |
| Keywords | - |
| Report |
Joint lecture on “Experimental Thermodynamics” – June 2016 In late June, Prof. Trusler visited RUB for one week. The trip coincided with a visit by VIP Prof. Eric May from the University of Western Australia. Together, Professors Trusler and May delivered a joint lecture within the Experimental Thermodynamics course of Prof. Rich-ter for the Masters in Energy & Process Engineering and Masters of Automotive Engineering degrees. As new co-supervisor of RUB PhD candidate Alexander Maurer, Prof. Trusler assisted in the design and implementation of electro-acoustic transducers for use in a spherical-cavity res-onator for sound-speed measurements in gases. This was a particular success since it was an extreme struggle to get the quite complex experimental system working. Collaboration visits – June and December 2017 Prof. Trusler visited RUB twice in 2017, mainly to advise RUB PhD candidates Alexander Maurer and Kai Humberg who are co-supervised by him. Working with Kai Humberg, a theo-retically-based model for the viscosity of gas mixtures was coded and tested; results from this model subsequently became part of a joint publication, which was submitted to the Journal of Chemical Thermodynamics during Prof. Trusler’s December visit. Moreover, Prof. Trusler gave further advice to assist Alexander Maurer set-up the spherical-cavity resonator for sound-speed measurements in gas mixtures and, by the end of the year, this apparatus was fully functional and being used in research investigations. During the June visit, Prof. Trusler also delivered two lectures in the Experimental Thermo-dynamics course of Prof. Richter: “Acoustic Measurements of Fluid Properties” and “The Viscosity of Dense Fluids”. This time, the lecture was jointly attended by Masters students from the Energy & Process Engineering studies and PhD candidates from the institute of thermo- and fluid dynamics. Exchange of Students RUB M.Sc. candidate Sawssen Mensi spent the last quarter of 2017 visiting Prof. Trusler’s laboratory at Imperial College London. During this period, she completed experimental measurements of the thermal conductivity of hydrocarbon liquids with dissolved carbon di-oxide at high pressures. After returning to RUB, she successfully completed her Masters studies at RUB and is now a PhD candidate at Technical University Freiberg. The first quarter of 2018, Imperial PhD candidate Lorena de Souza visited RUB to work on equation-of-state modelling for the carbon dioxide-carbon monoxide binary mixture. During her stay, she worked closely with RUB PhD candidate Stefan Herrig on the optimisation of the model; the results are now being written-up for a paper. The collaboration goes on in 2018 In March 2018, Prof. Trusler visited RUB during the stay of PhD candidate Lorena de Souza for discussions related to her equation-of-state modelling. Furthermore, discussions on vi-brating-tube densimetry helped to set up a student lab course on density measurement su-pervised by RUB PhD candidates. The next visit was in June 2018, during which Prof. Trusler took part in the RESOLV Summer School, delivering a lecture entitled “Thermophysical Properties of Aqueous Solutions of Carbon Dioxide”, documented on Twitter. This visit was also an opportunity to work on a joint paper and to discuss designs for a high-pressure vessel to accommodate the sound-speed sensor supplied to RUB by Imperial College. Markus Richter at Imperial College Prof. Richter visited Imperial College in September 2017 to deliver an invited lecture in the Clean Fossil Fuels seminar series, entitled “Precision density measurements and enhanced models for predicting thermodynamic properties of LNG”. This visit also provided an oppor-tunity for extended discussions about on-going collaboration, especially in relation to a new sound-speed sensor recently fabricated at Imperial. One of these sensors has been fabricat-ed at Imperial College and now been provided for testing at RUB in support of PhD candi-date Christian Scholz. To this end, also a joint publication is currently under preparation. Roland Span at Imperial College Prof. Roland Span visited Imperial College in February 2018 to deliver an invited lecture in the Chemical Engineering Department. Prof. Span’s lecture, entitled “Thermodynamics and the Transition Towards a Closed Carbon Cycle Economy”, attracted much attention and was attended by staff and students from across Imperial. The visit was also an opportunity for Prof. Span to meet other researchers both within Prof. Trusler’s group and elsewhere at Imperial. Joint Publications Maurer, A.; Richter, M.; Trusler, J. P. M.; Span, R.: Sound Speed Measurements in Binary Gas Mixtures Containing Hydrogen using a Spherical Acoustic Resonator. Poster, 20th Symposi-um on Thermophysical Properties, Boulder (CO), USA, 2018. Humberg, K.; Richter, M.; Trusler, J. P. M.; Span, R.: Viscosity Measurements of the Me-thane/Ethane System over wide Density and Temperature Ranges. Talk, 20th Symposium on Thermophysical Properties, Boulder (CO), USA, 2018. Humberg, K.; Richter, M.; Trusler, J. P. M.; Span, R.: Combined Measurement of Viscosity and Density over wide Temperature and Pressure Ranges. Talk, 18th Meeting of the Interna-tional Association of Transport Properties, Boulder (CO), USA, 2018. Humberg, K.; Richter, M.; Trusler, J. P. M.; Span, R.: Measurement and modeling of the vis-cosity of (nitrogen + carbon dioxide) mixtures at temperatures from (253.15 to 473.15) K with pressures up to 2 MPa. J. Chem. Thermodyn. 120 (2018), 191 – 204. Humberg, K.; Richter, M.; Trusler, J. P. M.; Span, R.: Viscosity measurements of pure N2, CO2 and their mixtures over wide density and temperature ranges. Talk, European Confer-ence on Thermophysical Properties, Graz, Austria, 2017. Further joint publications under preparation: Scholz, C.; xyz ; Trusler, J. P. M.; Richter, M.: Speed-of-sound measurements in n-pentane over the temperature range from (233 to 473) K at pressures up to 390 MPa. To be submit-ted to J. Chem. Thermodyn. (2018). Maurer, A.; Richter, M.; Trusler, J. P. M.; Span, R.: Speed-of-sound measurements in binary gas mixtures containing hydrogen over the temperature range from (250 to 350) K at pres-sures up to 10 MPa. To be submitted to J. Chem. Thermodyn. (2018). Humberg, K.; Richter, M.; Trusler, J. P. M.; Span, R.: Measurement and modeling of the vis-cosity of (methane + ethane) mixtures at temperatures from (253.15 to 473.15) K with pres-sures up to 2 MPa. To be submitted to J. Chem. Thermodyn. (2018). |