Researcher profile · Semantic Scholar

K. Kramer

h-index: 10
Works: 37
Citations: 373

Most-cited papers

PVT collector technologies in solar thermal systems: A systematic assessment of electrical and thermal yields with the novel characteristic temperature approach
M. Lämmle, Axel Oliva, M. Hermann, K. Kramer +1 more
201793 citations
Semantic Scholar
Multi-linear performance model for hybrid (C)PVT solar collectors
H. Helmers, K. Kramer
201345 citations
Semantic Scholar
The interaction of standards and innovation: Hybrid photovoltaic–thermal collectors
K. Kramer, H. Helmers
201333 citations
Semantic Scholar
Comparison of Two Different (Quasi-) Dynamic Testing Methods for the Performance Evaluation of a Linear Fresnel Process Heat Collector
A. Hofer, D. Büchner, K. Kramer, Sven Fahr +3 more
201531 citations Open access
Semantic Scholar
Development of highly efficient, glazed PVT collectors with overheating protection to increase reliability and enhance energy yields
M. Lämmle, M. Hermann, K. Kramer, Clemens Panzer +3 more
2018Solar Energy23 citations
Semantic Scholar
Comparison of modelled heat transfer and fluid dynamics of a flat plate solar air heating collector towards experimental data
C. Reichl, K. Kramer, Christoph Thoma, P. Beňovský +1 more
201519 citations
Semantic Scholar
Improved in situ performance testing of line-concentrating solar collectors: Comprehensive uncertainty analysis for the selection of measurement instrumentation
Annie Zirkel-Hofer, S. Perry, Sven Fahr, K. Kramer +3 more
201615 citations
Semantic Scholar
Measurements and Benchmark of PVT – Collectors According To EN 12975 and Development of a Standardized Measurement Procedure
P. Hofmann, P. Dupeyrat, K. Kramer, M. Hermann +1 more
201015 citations Open access
Semantic Scholar
State of the art of performance evaluation methods for concentrating solar collectors
A. Hofer, L. Valenzuela, N. Janotte, J. Burgaleta +10 more
201614 citations Open access
Semantic Scholar
Recent Advances in the Development and Testing of Hybrid PV-Thermal Collectors
P. Dupeyrat, K. Kramer, H. Helmers, S. Fortuin
201111 citations
Semantic Scholar
IEA/SHC T49 Activities on Process Heat Collectors: Available Technologies, Technical-Economic Comparison Tools, Operation and Standardization Recommendations☆
P. Horta, C. Brunner, K. Kramer, E. Frank
201610 citations Open access
Semantic Scholar
IEA-SHC Task 43: Research and Standardization on Solar Collector Testing and Towards a Global Certification Scheme
Enric Mateu Serrats, P. Kovács, K. Kramer, J. Nielsen +1 more
20119 citations Open access
Semantic Scholar
Testing Solar Air-heating Collectors☆
K. Kramer, Christoph Thoma, Stefan Mehnert, Sven Fahr
20147 citations Open access
Semantic Scholar
Interaction of Regulation and Innovation: Solar Air Heating Collectors☆
K. Kramer
20126 citations Open access
Semantic Scholar
Photovoltaic‐Thermal Technology – PVT Collectors, Systems and Applications
K. Kramer, Stefan Mehnert, G. Munz, Sebastian Helmling +1 more
2023Energy Technology5 citations Open access
Semantic Scholar
Confidence interval computation method for dynamic performance evaluations of solar thermal collectors
Annie Zirkel-Hofer, S. Perry, K. Kramer, A. Heimsath +2 more
20185 citations
Semantic Scholar
In Situ Characterization of Thermal Collectors in Field Installations
Sven Fahr, U. Gumbel, Annie Zirkel-Hofer, K. Kramer
20185 citations Open access
Semantic Scholar
Solar Collectors, Non-concentrating
S. Fortuin, G. Stryi-Hipp, W. Kramer, K. Kramer
2020Encyclopedia of Sustainability Science and Technology4 citations
Semantic Scholar
Enhanced dynamic performance evaluation method of line-concentrating solar collectors
Annie Zirkel-Hofer, K. Kramer, A. Heimsath, S. Scholl +1 more
20184 citations Open access
Semantic Scholar
Testing Process Heat Collectors – An Overview on Methodologies and Categories
K. Kramer, Stefan Mehnert
20114 citations
Semantic Scholar
Towards a Unified Standard for Solar Air Heating Collectors
G. Stryi-Hipp, K. Kramer, J. Richter, Christoph Thoma +3 more
20113 citations Open access
Semantic Scholar
Quality Assurance of SWH in Emerging Markets: An Overview of Influential Factors in Egypt and Tunisia
Lotus Shaheen, K. Kramer
2019Proceedings of the ISES Solar World Congress 20192 citations
Semantic Scholar
Mechtest – Developing a Methodology for Testing the Mechanical Snow and Wind Load on Solar Thermal Collectors
K. Kramer, Jonas Budde, K. Edelmann, G. Stryi-Hipp
20102 citations
Semantic Scholar
Temperature Measurement in Air Ducts - An Optimized Method for Solar Air Heaters
Christoph Thoma, J. M. Cerezo, K. Kramer
20102 citations
Semantic Scholar
Review of in situ Test Methods for Solar Thermal Installations
Sven Fahr, Daniel Tschopp, J. Nielsen, K. Kramer +1 more
20201 citations
Semantic Scholar
Review and Outlook on Methods for Product Certification, Energy Yield Measurement, Power Output Determination and Commissioning Test for Large Solar Thermal Installations
K. Kramer, Daniel Tschopp, J. Nielsen, P. Ohnewein
2019Proceedings of the ISES Solar World Congress 20191 citations Open access
Semantic Scholar
Dynamic performance evaluation of line-concentrating steam collectors
Annie Zirkel-Hofer, K. Kramer, A. Heimsath, S. Scholl +1 more
20181 citations Open access
Semantic Scholar
Verbundvorhaben StaMePEntwicklung von standardisierten messmethoden und Prüfständen für den Leistungsnachweis von Bauteilen solarthermischer Kraftwerke
Nicole Janotte, T. Effertz, A. Georg, Christoph Happich +13 more
20161 citations
Semantic Scholar
Evaluation Procedure for Storage Tank Tests Using the Combination of TRNSYS with GenOpt and New Proposal for Holistic Error Estimation
Christian Schmidt, Wolfgang Striewe, Jonathan Ansari, Andreas Jung +2 more
20111 citations
Semantic Scholar
Solar thermal technology update
M. Rommel, P. Kovács, K. Kramer
20101 citations Open access
Semantic Scholar
Solarthermie-Symposium Proceedings: Preface
K. Kramer
2026Solarthermie-Symposium Proceedings0 citations Open access
Semantic Scholar
PVT Readiness of Heat Pumps – Definition and Market Overview
Bärbel Epp, H. Drück, K. Kramer, F. Giovannetti +1 more
2026Proceedings0 citations Open access
Semantic Scholar
Laboratory test procedures for solar and heat pump systems
C. Schmidt, I. Malenković, K. Kramer, M. Haller +6 more
20150 citations
Semantic Scholar
Testing Methods for Innovative Collectors and Systems
Sven Fahr, Stefan Mehnert, K. Kramer, J. Richter +6 more
20110 citations Open access
Semantic Scholar
Towards a new global standard for solar thermal collectors
Stefan Mehnert, P. Kovács, K. Kramer, P. Dias +4 more
20110 citations Open access
Semantic Scholar
Solar Keymark-Experiences with the European Solar Thermal Quality Label
K. Kramer, M. Rommel, Stefan Mehnert, Arim Schäfer
20080 citations
Semantic Scholar
Extraction of the Neutron Magnetic Form Factor from Quasielastic
B. Anderson, L. Auberbach, T. Averett, W. Bertozzi +91 more
20030 citations
Semantic Scholar

×6

M. Lämmle×3

M. Hermann×3

H. Helmers×3

S. Fortuin×3