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

Journal articles

1. Hailemariam, H. and Wuttke, F. (2020). Cyclic mechanical behavior of two sandy soils used as heat storage media. Energies 13(15): 3835. Energies
2. Hailemariam , H., and Wuttke, F., (2018) "Temperature dependency of the thermal conductivity of porous heat storage media", Heat and Mass Transfer 54(4), pp.1031-1051  https://doi.org/10.1007/s00231-017-2204-3.
3. Stegner, J., Drefke, C., Hailemariam, H., Anbergen, H., Wuttke, F., Sass, I., (2017) "Messtechnik für den Erdkabeltrassenbau – Ermittlung der Wärmeleitfähigkeit von Bettungsmaterialien", Bauphysik, 39(1) pp 41-48, Ernst & Sohn. https://onlinelibrary.wiley.com/doi/abs/10.1002/bapi.201710003
4. Hailemariam, H., Shrestha, D., Wuttke, F., and Wagner, N., (2017) "Thermal and dielectric behaviour of fine-grained soils", Environmental Geotechnics  4 (2),  pp. 79-93. https://www.icevirtuallibrary.com/doi/full/10.1680/jenge.15.00042

5. Hailemariam , H., and Wuttke, F., (2016) "Hydrothermal Modelling and Analysis of Sensible Heat Energy Storages for Small-scale Dwellings Considering Natural Convection"  Energy Procedia, 97 pp. 462-469. https://www.sciencedirect.com/science/article/pii/S1876610216310098

6. Miao, X-Y., Beyer, C., Görke, U-J., Kolditz, O., Hailemariam, H., Nagel, T., (2016) "Thermo-hydro-mechanical analysis of cement-based sensible heat stores for domestic applications". Environ Earth Sci 75: 1293. https://link.springer.com/article/10.1007%2Fs12665-016-6094-3

Conference proceedings (peer-reviewed)

1.  H. Hailemariam and F. Wuttke. (2019). Effect of stress on the thermal conductivity of soils. Proceedings of the 17th European Conference on Soil Mechanics  and Geotechnical Engineering, Session D4-7 – TC308 Energy Geotechnics, 1 - 6 September 2019, Reykjavik, Iceland. 
2. J. Nordbeck, S. Bauer, A. Dahmke, H. Gomes, H. Hailemariam, C. Kinias, K. M. zu Beerentrup, C. Smirr, T. Vienken, F. Wuttke and C. Beyer. (2019). First results of a numerical characterization of a field-scale cement based thermal energy storage system. 11th International Conference on Applied Energy, Session – Mitigation Technologies and Energy Storage, 12 - 16 August 2019, Västerås, Sweden.
3. Wuttke, F., Bauer, S., Dahmke, A., Kolditz, O., Kinias, C., Nagel, T.,  Rizvi, Z.H., Hailemariam, H., Nordbeck, J., Min, Y., and K. zu Beerentrup. (2018), "Development and modelling of an adaptive energy storage under and around buildings". Prague Geotechnical Days 2018, Prague, Czech Republic.
4. Bauer, S., Köber, R., Wang, B., Delfs, J-O., Hailemariam, H., Wuttke, F., Schwanebeck, M., Duttmann, R., and Dahmke, A., (2018), "Unterirdische Hochtemperatur-Wärmespeicher als Bausteine einer zukünftigen Wärmeversorgung". Der Geothermiekongress - DGK, Haus der Technik, Essen , Germany.
5. Hailemariam, H., and Wuttke, F., (2017), "Thermal cyclic loading behavior of heat storage media". Proceedings of the 9th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, Session 24 – Environmental Systems & Thermal Storage, Iguazu Falls, Brazil.
6. Hailemariam, H.,  Al-Janabi, A., Wuttke, F., and Wagner, N., (2017), "Soil collapse monitoring with EM measurements". Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), Barcelona, Spain, pp. ICGRE 158 (1 - 10). http://avestia.com/CSEE2017_Proceedings/files/paper/ICGRE/ICGRE_158.pdf
7. Hailemariam, H., Wuttke, F., (2016), "Thermo-hydro-mechanical analysis of cement-based energy storages for small-scale dwellings", Geophysical Research, Vol. 18, EGU 2016-16298, EGU General Assembly.
8. Miao, X-Y., Beyer, C., Görke, U-J., Kolditz, O., Hailemariam, H., and Nagel, T., (2016) Thermo-hydro-mechanical analysis of subsurface cement-based heat stores. 1st German National Chapter Meeting (Interpore), Session – Porous Media in Energy Systems, 5 - 6 December 2016, Leipzig, Germany.
9. Hailemariam, H., Shrestha, D., and Wuttke, F., (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, Cincinnati, Ohio, USA. 
10. Hailemariam, H., Al-Janabi, A., Wuttke, F., and Wagner, N., (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), Berlin, Germany.
11. Hailemariam, H., Shrestha, D., Wuttke, F., and Wagner, N., (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.
12. D. Shrestha, D., Hailemariam, H., Wuttke, F., (2015), "Study of thermal conductivity design for thermal loaded geomaterials", International Symposium on Energy Geotechnics, Barcelona.
13. Hailemariam, H., Shrestha, D., Sembdner, K., Wuttke, F., and Wagner, N., (2015) "Effect of Hydro-mechanical changes on the relationship between thermal conductivity and Dielectric permittivity of soils", Second EAGE Workshop on Geomechanics and Energy, pp. 110-114, Celle,Germany.
14. Wuttke, F., and Hailemariam, H., (2014), "Large Scale thermohalinesalt cavern-& Small Scale urban home-energy geomechanical." Stockage Souterrain pour l’Energie et l’Environnement, Ecole des Ponts ParisTech, Marne-la-Vallée, France.

Book chapters

1. Hailemariam, H., Schwindrofska, D. and  Wuttke, F., (2019), Mechanical stability of cemented porous heat storage media. XVI Pan American Conference on Soil Mechanics and Geotechnical Engineering - Geotechnical Engineering in the XXI Century: Lessons learned and future challenges, N. P. López-Acosta et al. (Eds.), IOS Press, Session 19 – TC308 Energy Geotechnics Workshop, 17 - 20 November 2019, Cancun, Mexico, pp. 2867 - 2872. http://magento.kwaaijongens.nl/publication/53569
2. Hailemariam , H., and Wuttke, F., (2018), Thermal cyclic stability analysis of porous heat storage materials. Energy Geotechnics, Springer Series in Geomechanics and Geoengineering, Springer, Cham, Switzerland, pp. 258 - 265. https://link.springer.com/chapter/10.1007%2F978-3-319-99670-7_33
3. Hailemariam , H., and Wuttke, F., (2018), Modelling EM heating of porous media with lattice element method. Energy Geotechnics, Springer Series in Geomechanics and Geoengineering, Springer, Cham, Switzerland, pp. 315 - 322. https://link.springer.com/chapter/10.1007%2F978-3-319-99670-7_40
4. Hailemariam, H., Shrestha, D., and Wuttke, F., (2016), "Steady state vs transient thermal conductivity of soils". Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, pp. 389-396, Kiel, Germany. https://www.taylorfrancis.com/books/9781315315232
5. Shrestha, D., Hailemariam, H., and Wuttke, F., (2016), "Enhancement of soil thermal conductivity in dry condition". Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, pp. 405-412, Kiel, Germany. https://www.taylorfrancis.com/books/9781315315232
6. Hailemariam, H., Shrestha, D., and  Wuttke, F., (2016),  "CTE analysis of saturated cement-based sensible heat storage materials". Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, pp. 299-304, Kiel, Germany. https://www.taylorfrancis.com/books/9781315315232
7. Hailemariam, H., Shrestha, D., and Wuttke, F., (2016), "Analysis of cement-based thermal energy storages considering natural convection". Proceedings of the 1st International Conference on Energy Geotechnics ICEGT 2016, pp. 277-284, Kiel, Germany. https://www.taylorfrancis.com/books/9781315315232
8. 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, pp. 1617-1622, IS-Cambridge, UK. https://www.crcpress.com/Geomechanics-from-Micro-to-Macro/Soga-Kumar-Biscontin-Kuo/p/book/9781138027077

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.