Steffen Ulmer

1.2k total citations
43 papers, 938 citations indexed

About

Steffen Ulmer is a scholar working on Renewable Energy, Sustainability and the Environment, Artificial Intelligence and Electrical and Electronic Engineering. According to data from OpenAlex, Steffen Ulmer has authored 43 papers receiving a total of 938 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Renewable Energy, Sustainability and the Environment, 18 papers in Artificial Intelligence and 14 papers in Electrical and Electronic Engineering. Recurrent topics in Steffen Ulmer's work include Solar Thermal and Photovoltaic Systems (27 papers), Photovoltaic System Optimization Techniques (22 papers) and Solar Radiation and Photovoltaics (18 papers). Steffen Ulmer is often cited by papers focused on Solar Thermal and Photovoltaic Systems (27 papers), Photovoltaic System Optimization Techniques (22 papers) and Solar Radiation and Photovoltaics (18 papers). Steffen Ulmer collaborates with scholars based in Germany, Spain and Australia. Steffen Ulmer's co-authors include Wolfgang Reinalter, Christoph Prahl, Boris Belhomme, Eckhard Lüpfert, Peter Schwarzbözl, Robert Pitz‐Paal, Marc Röger, Peter Heller, Klaus Pottler and Andreas Neumann and has published in prestigious journals such as SHILAP Revista de lepidopterología, International Journal of Hydrogen Energy and International Journal of Heat and Mass Transfer.

In The Last Decade

Steffen Ulmer

40 papers receiving 845 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Steffen Ulmer Germany 16 794 383 274 189 91 43 938
Eckhard Lu ̈pfert Germany 8 757 1.0× 257 0.7× 182 0.7× 288 1.5× 44 0.5× 11 889
Klaus Pottler Germany 12 469 0.6× 230 0.6× 142 0.5× 100 0.5× 45 0.5× 24 569
Anna Heimsath Germany 13 443 0.6× 180 0.5× 209 0.8× 89 0.5× 39 0.4× 48 542
Peter Schwarzbözl Germany 17 1.3k 1.6× 431 1.1× 326 1.2× 593 3.1× 20 0.2× 65 1.5k
Roberto Grena Italy 12 490 0.6× 246 0.6× 154 0.6× 204 1.1× 24 0.3× 32 778
Xiudong Wei China 14 614 0.8× 250 0.7× 212 0.8× 211 1.1× 24 0.3× 19 710
Andreas Pfahl Germany 13 465 0.6× 146 0.4× 188 0.7× 85 0.4× 24 0.3× 29 606
Rubén Abbas Spain 18 975 1.2× 325 0.8× 303 1.1× 389 2.1× 36 0.4× 53 1.1k
Ole‐Morten Midtgård Norway 21 455 0.6× 336 0.9× 970 3.5× 37 0.2× 23 0.3× 85 1.3k
Peter Behrensdorff Poulsen Denmark 12 286 0.4× 80 0.2× 290 1.1× 20 0.1× 34 0.4× 85 485

Countries citing papers authored by Steffen Ulmer

Since Specialization
Citations

This map shows the geographic impact of Steffen Ulmer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Steffen Ulmer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Steffen Ulmer more than expected).

Fields of papers citing papers by Steffen Ulmer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Steffen Ulmer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Steffen Ulmer. The network helps show where Steffen Ulmer may publish in the future.

Co-authorship network of co-authors of Steffen Ulmer

This figure shows the co-authorship network connecting the top 25 collaborators of Steffen Ulmer. A scholar is included among the top collaborators of Steffen Ulmer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Steffen Ulmer. Steffen Ulmer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Wodak, Shoshana J., et al.. (2025). Dynamic multi-physics 1D-model of a proton exchange membrane electrolysis cell. International Journal of Hydrogen Energy. 119. 56–72. 3 indexed citations
2.
Zink, Mareike, et al.. (2025). A heat transfer test rig for reference measurements in narrow fixed-beds with multi-hole cylinders and spheres. International Journal of Heat and Mass Transfer. 256. 128098–128098.
3.
Sánchez, Marcelino, Charles-Alexis Asselineau, Kenneth Armijo, et al.. (2024). SolarPACES Task III Project: Analyze Heliostat Field:. SHILAP Revista de lepidopterología. 2.
4.
Krauth, Julian J., et al.. (2024). HelioPoint – A Fast Airborne Calibration Method for Heliostat Fields. Journal of Solar Energy Engineering. 146(6). 3 indexed citations
5.
Ulmer, Steffen, et al.. (2019). From research to industry: Development of a high-resolution measurement system for mirrored heliostats in series production. AIP conference proceedings. 2126. 30051–30051. 1 indexed citations
6.
Schwarzbözl, Peter, et al.. (2016). An automated model-based aim point distribution system for solar towers. AIP conference proceedings. 1734. 20023–20023. 6 indexed citations
7.
Weber, C., et al.. (2014). Enhancements in High-resolution Slope Deviation Measurement of Solar Concentrator Mirrors. Energy Procedia. 49. 2231–2240. 8 indexed citations
8.
Röger, Marc, et al.. (2011). Flux Density Measurement on Large-Scale Receivers. elib (German Aerospace Center). 3 indexed citations
9.
Ulmer, Steffen, et al.. (2010). Automated high resolution measurement of heliostat slope errors. Solar Energy. 85(4). 681–687. 76 indexed citations
10.
Belhomme, Boris, Robert Pitz‐Paal, Peter Schwarzbözl, & Steffen Ulmer. (2009). A New Fast Ray Tracing Tool for High-Precision Simulation of Heliostat Fields. Journal of Solar Energy Engineering. 131(3). 143 indexed citations
11.
Nepveu, François, et al.. (2008). Optical Simulation of a 10 KWel Dish/Stirling Unit Using Ray-Tracing Code SOLTRACE. elib (German Aerospace Center). 5 indexed citations
12.
Ulmer, Steffen & Marc Röger. (2007). Automatisierte hochaufgelöste Vermessung der Spiegelfehler von Heliostaten. elib (German Aerospace Center). 4 indexed citations
13.
Reinalter, Wolfgang, et al.. (2006). DETAILED PERFORMANCE ANALYSIS OF THE 10KW CNRS-PROMES DISH/STIRLING SYSTEM. elib (German Aerospace Center). 99. 278–9. 6 indexed citations
14.
Imenes, Anne Gerd, et al.. (2006). Ray Tracing and Flux Mapping as a Design and Research Tool at the National Solar Energy Centre. elib (German Aerospace Center). 5 indexed citations
15.
Lüpfert, Eckhard, et al.. (2006). Parabolic Trough Optical Performance Analysis Techniques. Journal of Solar Energy Engineering. 129(2). 147–152. 55 indexed citations
16.
̈pfert, Eckhard Lu, et al.. (2005). Parabolic Trough Analysis and Enhancement Techniques. Solar Energy. 741–747. 1 indexed citations
17.
̈pfert, Eckhard Lu, Andreas Neumann, K.-J. Riffelmann, & Steffen Ulmer. (2004). Comparative Flux Measurement and Raytracing for the Characterization of the Focal Region of Solar Parabolic Trough Collectors. Solar Energy. 689–694. 8 indexed citations
18.
Téllez, Felix, et al.. (2004). Thermal Performance of SolAir 3000 kWth Ceramic Volumetric Solar Receiver. elib (German Aerospace Center). 16 indexed citations
19.
Ulmer, Steffen, Wolfgang Reinalter, Peter Heller, Eckhard Lu ̈pfert, & Diego Martı́nez. (2002). Beam Characterization and Improvement With a Flux Mapping System for Dish Concentrators. Solar Energy. 285–292. 8 indexed citations
20.
Ulmer, Steffen. (1998). Influences of Cost Reduction Measures on the Beam Quality of a Large-Area Heliostat. elib (German Aerospace Center). 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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