Kühn, A., Dähn, S. and Ziegler, F. (2012). Evaluation of concepts for a 10 kW reversible absorption heat pump. Proceedings of the 10th IIR Gustav-Lorentzen-Conference on Natural refrigerants

Stemann, J., Erlach, B. and Ziegler, F. (2012). Hydrothermal carbonisation of empty palm oil fruit bunches: Laboratory Trials, Plant Simulation, Carbon Avoidance and Economic Feasibility. Waste and Biomass Valorization, 441–454.

Kühn, A., Ziegler, F., Zehnacker, O. and Seiler, M. (2012). Verbundprojekt: Verwendung von ionischen Flüssigkeiten in Absorptionskälteanlagen.

(2012). 1st Workshop Development and Progress in Sorption Technologies - Characteritic Equation Method. TU Berlin.

Schneider, M.-C., Schneider, R., Zehnacker, O., Buchin, O., Cudok, F., Kühn, A., Meyer, T., Ziegler, F. and Seiler, M. (2011). Ionic liquids: new high-performance working fluids for absorption chillers and heat pumps. Proc. of the International Sorption Heat Pump Conference

Stemann, J. and Ziegler, F. (2011). Hydrothermal carbonisation (HTC): Recycling of process water. Proceedings of 19th European Biomass Conference and Exhibition

Albers, J., Trinh, Q. D. and Ziegler, F. (2011). Experimental investigation of mass flow rates in a thermosiphon desorber at sub-atmospheric pressure.. Proc. of 6textsuperscriptth Int. Berlin Workshop on Transport Phenomena with Moving Boundaries

Martini, W., Kühn, R., Roske, F. and Arellano-garcia, H. (2011). New Washing Fluids for CO 2 Capture : Data Estimation and Process Simulation using Hyperbranched Polymers.

Stemann, J. and Neubauer, Y. (2011). Hydrothermale Carbonisierung von Biomasse – Grundlagen, Stand und Perspektiven. Kern, M., Raussen, T., Krautkremer, B., Wagner, K. (Hrsg.): Novellierung von EEG, BioAbfV und KrWG: Auswirkungen auf die Verwertung von Bioabfällen und Felxibilisierung der Stromeinspeisung, Witzenhausen Institut. Neues aus Forschung und Praxis.

Malenkovic, I., Melograno, P., Kühn, A. and Schossig, P. (2011). Current work within IEA HPP Annex 34 on performance evaluation and testing methods for thermally driven heat pumps for heating and cooling. Proc. of the 10th International IEA Heat Pump Conference

Corrales Ciganda, J. L. and Ziegler, F. (2011). Control strategies for heat driven chillers to reduce parasitic electric consumption. 2nd European Conference on Polygeneration

Stemann, J. and Ziegler, F. (2011). Assessment of the energetic efficiency of a continuously operating plant for hydrothermal carbonisation of biomass. Proceedings of World Renewable Energy Congress 2011. Linköping University Electronic Press, 125–132.

Albers, J., Kühn, A., Petersen, S. and Ziegler, F. (2011). Development and progress in solar cooling technologies with sorption systems.. Chemie Ingenieur Technik. WILEY-VCH Verlag, 1853–1863.

Kühn, A., Özgür-Popanda, C. and Ziegler, F. (2011). A 10 kW indirectly fired absorption heat pump: concepts for a reversible operation. Proc. of the 10th International IEA Heat Pump Conference

Natzer, S., Petersen, S., Hansske, A., Helm, M., Hennrich, C., Hüls, W., Lanser, W., Mittermaier, M., Stangl, J., Zachmeier, P. and Ziegler, F. (2011). Development of a 50 kW absorption chiller. 4th International Conference Solar Air-Conditioning. Ostbayerisches Technologie-Transfer-Institut e.V. (OTTI), Regensburg.