Hannu Karjunen

545 total citations
13 papers, 403 citations indexed

About

Hannu Karjunen is a scholar working on Energy Engineering and Power Technology, Electrical and Electronic Engineering and Catalysis. According to data from OpenAlex, Hannu Karjunen has authored 13 papers receiving a total of 403 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Energy Engineering and Power Technology, 7 papers in Electrical and Electronic Engineering and 3 papers in Catalysis. Recurrent topics in Hannu Karjunen's work include Hybrid Renewable Energy Systems (8 papers), Integrated Energy Systems Optimization (6 papers) and Catalysts for Methane Reforming (3 papers). Hannu Karjunen is often cited by papers focused on Hybrid Renewable Energy Systems (8 papers), Integrated Energy Systems Optimization (6 papers) and Catalysts for Methane Reforming (3 papers). Hannu Karjunen collaborates with scholars based in Finland, Switzerland and Türkiye. Hannu Karjunen's co-authors include Tero Tynjälä, Johannes Schaffert, Christian Breyer, Tansu Galimova, Siavash Khalili, Ashish Gulagi, Manish Ram, Dmitrii Bogdanov, Mahdi Fasihi and Theophilus Nii Odai Mensah and has published in prestigious journals such as Renewable and Sustainable Energy Reviews, Journal of Cleaner Production and Applied Energy.

In The Last Decade

Hannu Karjunen

12 papers receiving 374 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hannu Karjunen Finland 6 229 169 116 91 77 13 403
Charlotte van Leeuwen Netherlands 4 214 0.9× 161 1.0× 97 0.8× 75 0.8× 47 0.6× 7 358
Jimena Incer-Valverde Germany 8 234 1.0× 114 0.7× 79 0.7× 79 0.9× 66 0.9× 12 410
Carlos Fúnez Guerra Spain 9 175 0.8× 124 0.7× 116 1.0× 56 0.6× 77 1.0× 16 397
Ali Erdogan Karaca Canada 9 172 0.8× 104 0.6× 80 0.7× 105 1.2× 110 1.4× 17 416
Daniel C. Rosenfeld Austria 7 187 0.8× 141 0.8× 78 0.7× 69 0.8× 60 0.8× 10 380
Janos Lucian Breuer Germany 9 206 0.9× 167 1.0× 172 1.5× 101 1.1× 126 1.6× 10 578
Christoph Hank Germany 4 150 0.7× 84 0.5× 134 1.2× 79 0.9× 79 1.0× 4 336
Franz Bauer Germany 4 250 1.1× 138 0.8× 222 1.9× 100 1.1× 84 1.1× 4 502
Zaira Navas-Anguita Spain 8 149 0.7× 129 0.8× 146 1.3× 106 1.2× 100 1.3× 8 467
Andreas Zauner Austria 5 276 1.2× 176 1.0× 62 0.5× 46 0.5× 72 0.9× 8 375

Countries citing papers authored by Hannu Karjunen

Since Specialization
Citations

This map shows the geographic impact of Hannu Karjunen'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 Hannu Karjunen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hannu Karjunen more than expected).

Fields of papers citing papers by Hannu Karjunen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hannu Karjunen. 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 Hannu Karjunen. The network helps show where Hannu Karjunen may publish in the future.

Co-authorship network of co-authors of Hannu Karjunen

This figure shows the co-authorship network connecting the top 25 collaborators of Hannu Karjunen. A scholar is included among the top collaborators of Hannu Karjunen 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 Hannu Karjunen. Hannu Karjunen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

13 of 13 papers shown
1.
Galimova, Tansu, Hannu Karjunen, Jukka Lassila, Rasul Satymov, & Christian Breyer. (2025). Techno-economic analysis of e-methanol infrastructure choice for the case of Finland. Energy. 334. 137531–137531. 2 indexed citations
2.
Satymov, Rasul, Tansu Galimova, Kim Talus, et al.. (2025). Exploring the Shetland Islands’ potential as a green e-hydrogen export hub for Europe. Energy. 339. 138682–138682.
3.
Breyer, Christian, et al.. (2025). Overview of energy modeling requirements and tools for future smart energy systems. Renewable and Sustainable Energy Reviews. 212. 115367–115367. 13 indexed citations
4.
Kamravamanesh, Donya, Emre Oğuz Köroğlu, Jouni Havukainen, et al.. (2025). A comprehensive review on biological methanation processes: from gaseous feedstocks to biomethane. Energy Conversion and Management. 341. 120075–120075. 1 indexed citations
5.
Karjunen, Hannu, et al.. (2024). Effect of temperature on seasonal wind power and energy potential estimates in Nordic climates. IET Renewable Power Generation. 18(14). 2658–2671. 4 indexed citations
6.
Karjunen, Hannu, et al.. (2023). Value creation by converting pulp mill flue gas streams to green fuels. TAPPI Journal. 22(3). 193–205. 4 indexed citations
7.
Galimova, Tansu, Manish Ram, Dmitrii Bogdanov, et al.. (2022). Global demand analysis for carbon dioxide as raw material from key industrial sources and direct air capture to produce renewable electricity-based fuels and chemicals. Journal of Cleaner Production. 373. 133920–133920. 95 indexed citations
8.
Karjunen, Hannu, et al.. (2021). Mapping Bio-CO2 and Wind Resources for Decarbonized Steel, E-Methanol and District Heat Production in the Bothnian Bay. Energies. 14(24). 8518–8518. 10 indexed citations
9.
Karjunen, Hannu, et al.. (2021). Feasibility Study for Industrial Pilot of Carbon-Neutral Fuel Production – P2X: Final Report. LUTPub (LUT University). 3 indexed citations
10.
Tynjälä, Tero, et al.. (2020). Significance of methanation reactor dynamics on the annual efficiency of power-to-gas -system. Renewable Energy. 163. 1113–1126. 23 indexed citations
11.
Karjunen, Hannu, et al.. (2019). Cost benefits of optimizing hydrogen storage and methanation capacities for Power-to-Gas plants in dynamic operation. Applied Energy. 257. 113967–113967. 214 indexed citations
12.
Karjunen, Hannu, Tero Tynjälä, & Timo Hyppänen. (2017). A method for assessing infrastructure for CO2 utilization: A case study of Finland. Applied Energy. 205. 33–43. 31 indexed citations
13.
Karjunen, Hannu, et al.. (2016). Integration of power-to-gas -process to wastewater treatment plant with biogas production. 3 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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