Research topic

• Thermo-hydro-dielectric Coupled Soil Behavior, Numerical and Experimental Study

Research interests

• Electromagnetic and thermal measurements and their applications in Geomechanics

• Numerical methods: Lattice Element Method (LEM)
• Behavior and collapse mechanism of collapsible soils

• Unsaturated soil mechanics
• Small scale energy geo-storage systems

Publications

• H. Hailemariam & F. Wuttke, 2017, Temperature dependency of the thermal conductivity of porous heat storage media, Heat and Mass Transfer (https://doi.org/10.1007/s00231-017-2204-3).
• Stegner, J., Drefke, C., Hailemariam, H., Anbergen, H., Wuttke, F., Sass, I., Messtechnik für den Erdkabeltrassenbau – Ermittlung der Wärmeleitfähigkeit von Bettungsmaterialien, Bauphysik, 1, Ernst & Sohn, 2017.
• X-Y. Miao, C. Beyer, U-J. Görke, O. Kolditz, H. Hailemariam, T. Nagel. 2016, Thermo-hydro-mechanical analysis of cement-based sensible heat stores for domestic applications. Environ Earth Sci 75: 1293. (http://dx.doi.org/10.1007/s12665-016-6094-3)
• Hailemariam, H., Wuttke, F.,  Thermo-hydro-mechanical analysis of cement-based energy storages for small-scale dwellings, Geophysical Research, Vol. 18, EGU 2016-16298, EGU General Assembly 2016.
• D. Shrestha, H. Hailemariam and F. Wuttke, 2016, Enhancement of soil thermal conductivity in dry condition. Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, 29 - 31 August 2016, Kiel, Germany.
• H. Hailemariam, D. Shrestha and F. Wuttke, 2016, Steady state vs transient thermal conductivity of soils. Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, 29 - 31 August 2016, Kiel, Germany.
• H. Hailemariam, D. Shrestha and F. Wuttke, 2016,  CTE analysis of saturated cement-based sensible heat storage materials. Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, 29 - 31 August 2016, Kiel, Germany.
• H. Hailemariam, D. Shrestha and F. Wuttke, 2016, Analysis of cement-based thermal energy storages considering natural convection. Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, 29 - 31 August 2016, Kiel, Germany.
• H. Hailemariam, D. Shrestha and F. Wuttke, 2016, Transient vs steady-state techniques for determining effective thermal properties of porous media. 8th International Conference on Porous Media & Annual Meeting, Session MS 3.5. Transient methods to identify effective parameters in porous media, 9 - 12 May 2016, Cincinnati, Ohio, USA. 
• Hailemariam, H., D. Shrestha, F. Wuttke, and N. Wagner, 2016, Thermal and dielectric behaviour of fine-grained soils, Environmental Geotechnics. (DOI: 10.1680/jenge.15.00042)
• H. Hailemariam, A. Al-Janabi, F. Wuttke and N. Wagner, 2015, Wave Based Monitoring of Water-Driven Deterioration Process of Unsaturated, Stressed Collapsible Soils. Proceedings of the International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE), 15 - 17 September 2015, Berlin, Germany. 
• Hailemariam, H., D. Shrestha, K. Sembdner, F. Wuttke, and N. Wagner, "Effect of Hydro-mechanical changes on the relationship between thermal conductivity and Dielectric permittivity of soils", Second EAGE Workshop on Geomechanics and Energy, 13-15 October, 2015, Celle,Germany 
• Hailemariam, H., D. Shrestha, F. Wuttke, and N. Wagner, 2015. Theoretical and experimental correlation between thermal conductivity and dielectric permittivity of soils, XV Pan American Conference on Soil Mechanics and Geotechnical Engineering, Buenos Aires, Argentina (doi:10.3233/978-1-61499-603-3-785)
• D. Shrestha, H. Hailemariam, F. Wuttke, Study of thermal conductivity design for thermal loaded geomaterials, International Symposium on Energy Geotechnics, Barcelona, June 2015.

• Kafle B, Hailemariam H, Wuttke F (2014). Theoretical & experimental modelling of rigid footing over collapsible soil. Proceedings of the International Symposium on Geomechanics from Micro to Macro, IS-Cambridge, September 2014, UK.

Research Projects

• ANGUS II - Effects of  using the geological underground as a thermal, electrical or material storage - Integration of underground storage technologies into the energy system transformation using the example of the Schleswig-Holstein model area, Cooperation partners: Christian-Albrechts-Universität zu Kiel, Europa-Universität Flensburg, Helmholtz-Zentrum für Umweltforschung GmbH - UFZ, Johannes Gutenberg-Universität Mainz, Hochschule Flensburg, BMWi - joint project, 2017-2020.
• IGLU - Modelling and Assessement of intelligent geothermal Long-term heat storage by environmental sustainable behavior, Cooperation partner: Company Scheer Heat Systems and Production, CAU Kiel / GeoHydromodelling, CAU Kiel/ Geochemistry, UFZ Leipzig, BMU - joint project, 2014-2017.