Koray Ülgen

1.8k total citations
38 papers, 1.5k citations indexed

About

Koray Ülgen is a scholar working on Renewable Energy, Sustainability and the Environment, Artificial Intelligence and Environmental Engineering. According to data from OpenAlex, Koray Ülgen has authored 38 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Renewable Energy, Sustainability and the Environment, 19 papers in Artificial Intelligence and 9 papers in Environmental Engineering. Recurrent topics in Koray Ülgen's work include Solar Radiation and Photovoltaics (19 papers), Solar Thermal and Photovoltaic Systems (18 papers) and Photovoltaic System Optimization Techniques (13 papers). Koray Ülgen is often cited by papers focused on Solar Radiation and Photovoltaics (19 papers), Solar Thermal and Photovoltaic Systems (18 papers) and Photovoltaic System Optimization Techniques (13 papers). Koray Ülgen collaborates with scholars based in Türkiye, United Kingdom and Zambia. Koray Ülgen's co-authors include Arif Hepbaşlı, Canan Kandilli, Başak Kundakçı Koyunbaba, Zerrin Yílmaz, Rüştü Eke, Aşır Genç, Galip Oturanç, Murat Erişoğlu, Numan Sabit Çetin and Önder Özgener and has published in prestigious journals such as SHILAP Revista de lepidopterología, Renewable and Sustainable Energy Reviews and Energy Conversion and Management.

In The Last Decade

Koray Ülgen

37 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koray Ülgen Türkiye	21	731	555	367	315	296	38	1.5k
Timothy Anderson New Zealand	22	687 0.9×	215 0.4×	471 1.3×	228 0.7×	130 0.4×	112	1.9k
Ó.A. Jaramillo Mexico	22	851 1.2×	345 0.6×	638 1.7×	90 0.3×	234 0.8×	60	1.7k
Ali Akbar Dehghan Iran	19	638 0.9×	428 0.8×	156 0.4×	286 0.9×	425 1.4×	60	1.6k
Douglas T. Reindl United States	20	1.2k 1.7×	1000 1.8×	367 1.0×	327 1.0×	252 0.9×	56	2.5k
Daniel R. Rousse Canada	22	696 1.0×	153 0.3×	261 0.7×	586 1.9×	346 1.2×	108	1.8k
Ahmed Al‐Salaymeh Jordan	19	358 0.5×	153 0.3×	325 0.9×	183 0.6×	162 0.5×	86	1.3k
Ahmet Duran Şahin Türkiye	19	469 0.6×	468 0.8×	697 1.9×	45 0.1×	318 1.1×	45	1.5k
Aron Habte United States	14	519 0.7×	687 1.2×	591 1.6×	87 0.3×	177 0.6×	76	1.5k
Aynur Uçar Türkiye	16	319 0.4×	104 0.2×	293 0.8×	514 1.6×	369 1.2×	30	1.3k
B.J. Brinkworth United Kingdom	19	806 1.1×	265 0.5×	269 0.7×	186 0.6×	89 0.3×	57	1.3k

Countries citing papers authored by Koray Ülgen

Since Specialization

Citations

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

Fields of papers citing papers by Koray Ülgen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koray Ülgen

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

All Works

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20 of 20 papers shown

Ülgen, Koray, et al.. (2023). The Parametric Design of a Photovoltaic Power System over a Parking Lot. SHILAP Revista de lepidopterología. 11(1). 55–67. 2 indexed citations

Ateş, Ali, et al.. (2021). Üniversite Binalarının Enerji Performans Değerlendirmesi: MCBÜ Köprübaşı Meslek Yüksekokulu Örneği. 62(704). 534–555. 1 indexed citations

Ülgen, Koray, et al.. (2021). REACTIVE POWER COMPENSATION BASED OPTIMIZATION OF MICRO-SCALE STAND-ALONE PHOTOVOLTAIC SYSTEMS. Mugla Journal of Science and Technology. 7(1). 25–35.

Çetin, Numan Sabit, et al.. (2017). The Potential of Solar Energy for Sustainable Water Resource Development and Averting National Social Burden in Rural Areas of Zambia. Periodicals of Engineering and Natural Sciences (PEN). 5(1). 10 indexed citations

Çetin, Numan Sabit, et al.. (2017). Assessment of Solar Energy Source Distribution and Potential in Zambia. Periodicals of Engineering and Natural Sciences (PEN). 5(2). 15 indexed citations

Ülgen, Koray, et al.. (2017). Techno-economic analysis of wind power plants: A case study of Milas-Turkey. Energy Sources Part B Economics Planning and Policy. 12(12). 1088–1100. 8 indexed citations

Ülgen, Koray, et al.. (2015). What is the effect of optimum independent parameters on solar heating systems?. Energy Conversion and Management. 105. 103–117. 7 indexed citations

Ülgen, Koray, et al.. (2012). Effect of collector slope and orientation on solar energy utilization. 4 indexed citations

Kandilli, Canan, et al.. (2009). Transmission performance of fibre-optic bundle for solar lighting. International Journal of Energy Research. 33(2). 194–204. 24 indexed citations

10.

Kandilli, Canan & Koray Ülgen. (2008). Solar Illumination and Estimating Daylight Availability of Global Solar Irradiance. Energy Sources Part A Recovery Utilization and Environmental Effects. 30(12). 1127–1140. 29 indexed citations

11.

Ülgen, Koray & Arif Hepbaşlı. (2008). Diffuse solar radiation estimation models for Turkey’s big cities. Energy Conversion and Management. 50(1). 149–156. 118 indexed citations

12.

Kandilli, Canan & Koray Ülgen. (2007). Review and modelling the systems of transmission concentrated solar energy via optical fibres. Renewable and Sustainable Energy Reviews. 13(1). 67–84. 81 indexed citations

13.

Ülgen, Koray, et al.. (2007). Exergetic assessment of direct-expansion solar-assisted heat pump systems: Review and modeling. Renewable and Sustainable Energy Reviews. 12(5). 1383–1401. 81 indexed citations

14.

Hepbaşlı, Arif, Koray Ülgen, & Rüştü Eke. (2004). Solar Energy Applications in Turkey. Energy Sources. 26(6). 551–561. 20 indexed citations

15.

Ülgen, Koray, Aşır Genç, Arif Hepbaşlı, & Galip Oturanç. (2004). Assessment of Wind Characteristics for Energy Generation. Energy Sources. 26(13). 1227–1237. 18 indexed citations

16.

Ülgen, Koray & Arif Hepbaşlı. (2004). Solar Radiation Models. Part 1: A Review. Energy Sources. 26(5). 507–520. 41 indexed citations

17.

Ülgen, Koray & Arif Hepbaşlı. (2003). Comparison of the Diffuse Fraction of Daily and Monthly Global Radiation for Izmir, Turkey. Energy Sources. 25(7). 637–649. 28 indexed citations

18.

Ülgen, Koray & Arif Hepbaşlı. (2003). Comparison of the Diffuse Fraction of Daily and Monthly Global Radiation for Izmir, Turkey. Energy Sources. 25(7). 637–649. 1 indexed citations

19.

Ülgen, Koray. (2002). Experimental and theoretical investigation of effects of wall’s thermophysical properties on time lag and decrement factor. Energy and Buildings. 34(3). 273–278. 148 indexed citations

20.

Ülgen, Koray & Arif Hepbaşlı. (2002). Determination of Weibull parameters for wind energy analysis of ?zmir, Turkey. International Journal of Energy Research. 26(6). 495–506. 179 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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