Indoor collector test stand with a solar simulator

Its excellent reproducibility allows targeted development of collector constructions to be carried out very efficiently. TestLab Solar Thermal Systems is completely accredited to carry out all measurements specified by DIN EN 12975-1,2:2006.

TestLab Solar Thermal Systems

At our TestLab Solar Thermal Systems, we test solar collectors, components and complete systems. In addition, we provide support to our clients in developing their products.
Our test center is authorized by DIN CERTCO and fully accredited by the German Association for Accreditation (DAkkS). We provide services worldwide. Our facilities include a large outdoor test field and our laboratories are equipped with state-of-the-art facilities for carrying out our testing services. Our team of experienced engineers and scientists has already measured and characterized well over 500 collectors and systems.

We look forward to working with you!

Solar Keymark

  • Collectors according to EN 12975-1 / EN ISO 9806
  • Factory made systems according to EN 12976
  • Custom built systems according to EN 12977
  • Storage tanks according to EN 12977-3,4

SRCC

  • Collectors according to OG 100
  • Collectors according to ST 600

Factory Inspections

  • Initial- and reinspections
  • Physical Inspection
  • Sampling (also remote sampling)

Process Heat Collectors

  • Efficiency characterization up to 200 °C

Solar Air Collectors

  • Consultation and individual custom service offers
  • Complete testing following the EN 12975 respectively ISO 9806
  • Collector testing according to OG-100, CSA 378.2

System and Storage Tanks

  • Characterization of storage tanks and system components according to customer requirements

Mechanical Load Tests

  • Positive, negative and thrust loads for collectors and systems
  • Variable load profile (i. e. gradient of unequally distributed snow load)
  • Various environmental conditions (-40 up to 80 °C)
  • Load testing of mountings and fixings (max. 9m² at 6 kPa)

Additional Offers

  • Hailstone testing (25 mm, 35 mm, 45 mm)
  • Optical parameter measurements, e.g. absorption, transmission, emission
  • Pressure drop measurements
  • Stagnation analysis
  • Thermographic analysis
  • Raytracing analysis
  • Simulation calculations

Upon request, we are glad to provide a customized offer for you.

Contact Press / Media

Sekretariat TestLab Solar Thermal Systems

Office hours: 9-12 Uhr

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5354

Contact Press / Media

Dr. rer. nat. Korbinian Kramer

TestLab Solar Thermal Systems

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5139

Contact Press / Media

Stefan Mehnert

TestLab Solar Thermal Systems

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5741

Contact Press / Media

Konstantin Geimer

TestLab Solar Thermal Systems

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5406

To ensure a permanent improvement and update of the service of the TestLab Solar Thermal Systems the initialization and participation of resarch projects are part of our daily work. An excerpt of ongoing and finished research projects round about the work of the TestLab are available at the following link:

Overview: Research projects of the TestLab Solar Thermal Systems

Publications - TestLab Solar Thermal Systems

YearTitle/AuthorDocument Type
2016Improved in situ performance testing of line-concentrating solar collectors: Comprehensive uncertainty analysis for the selection of measurement instrumentation
Zirkel-Hofer, A.; Perry, S.; Fahr, S.; Kramer, K.; Heimsath, A.; Scholl, S.; Platzer, W.
Journal Article
2016Prüfkampagne thermischer Speicher und deren Energy Labeling nach ErP Richtlinie
Geimer, K.; Schäfer, A.; Schmidt, C.; Kramer K.
Conference Paper
2016A PVT collector concept with variable film insulation and low-emissivity coating
Lämmle, M.; Thoma, C.; Hermann, M.
Journal Article
2016State of the art of performance evaluation methods for concentrating solar collectors
Hofer, A.; Valenzuela, L.; Janotte, N.; Burgaleta, J.I.; Arraiza, J.; Montecchi, M.; Sallaberry, F.; Osório, T.; Carvalho, M.J.; Alberti, F.; Kramer, K.; Heimsath, A.; Platzer, W.; Scholl, S.
Conference Paper
2015Comparison of modelled heat transfer and fluid dynamics of a flat plate solar air heating collector towards experimental data
Reichl, C.; Kramer, K.; Thoma, C.; Benovsky, P.; Lemée, T.
Journal Article
2015Comparison of two different (quasi-) dynamic testing methods for the performance evaluation of a linear fresnel process heat collector
Hofer, A.; Büchner, D.; Kramer, K.; Fahr, S.; Heimsath, A.; Platzer, W.J.; Scholl, S.
Journal Article
2015"GWERT-TRACKER" Neues Verfahren zur Outdoor-Charakterisierung von Fassadenkollektoren und BIPV. Schlussbericht: Laufzeit: 01.10.2011 - 31.03.2015
Maurer, C.; Amann, U.; Lauro, P. di; Hanek, J.; Fahr, S.; Kramer, K.; Kuhn, T.
Report
2014Classification of rating methods for solar heating and cooling systems
Schicktanz, M.D.; Schmidt, C.; Fedrizzi, R.
Conference Paper
2014Einfluss von Normungs- und Qualitätssicherungsprozessen auf Innovation und Diffusion in der Solarthermiebranche
Kramer, K.
Dissertation
2014Entscheidungskriterium für Luftkollektoren zur BAFA-Förderung
Welz, C.; Kramer, K.; Hermann, M.; Stryi-Hipp, G.
Conference Paper
2014Die neue DIN EN ISO 9806:2014 - und nun?
Mehnert, S.; Kramer, K.
Conference Paper
2014Testing solar air-heating collectors
Kramer, K.; Thoma, C.; Mehnert, S.; Fahr, S.
Conference Paper
2013Ausarbeitung von Testverfahren und Modellgleichungen für un-abgedeckte Luftkollektoren
Thoma, C.; Eisenmann, A.; Kramer, K.; Stryi-Hipp, G.
Conference Paper
2013The Interaction of Standards and Innovation: Hybrid Photovoltaic-thermal Collectors
Kramer, K.; Helmers, H.
Journal Article
2013KollSorp - Entwicklung eines kollektorintegrierten Sorptionssystems zur solaren Kühlung und Heizung
Füldner, G.; Schnabel, L.; Horn, P.; Spahn, H.-J.; Schmidt, C.; Thoma, C.; Salg, F.
Conference Paper
2013Multi-linear performance model for hybrid (C)PVT solar collectors
Helmers, H.; Kramer, K.
Journal Article
2012Aging tests of components for solar thermal collectors
Kaltenbach, T.; Kurth, M.; Schmidt, C.; Meier, T.; Köhl, M.; Weiß, K.-A.
Conference Paper
2012IEA-SHC Task 43: Research and standardization on solar collector testing and towards a global certification scheme
Serrats, E.M.; Kovacs, P.; Kramer, K.; Nielsen, J.E.; Nelson, L.
Conference Paper
2012Interaction of regulation and innovation: Solar air heating collectors
Kramer, K.
Journal Article
2012Physikalische Modellierung und Simulation sowie detaillierte Vermessung von Luftkollektoren
Welz, C.; Lauro, P. di; Thoma, C.; Richter, J.; Hermann, M.; Stryi-Hipp, G.; Maurer, C.
Conference Paper
2011Evaluation procedure for storage tank tests using the combination of TRNSYS with GenOpt and new proposal for holistic error estimation
Schmidt, C.; Notz, S.; Striewe, W.; Ansari, J.; Jung, A.; Kramer, K.
Conference Paper
2011Evaluation Procedure for Storage Tank Tests Using the Comination of TRNSYS with GenOpt and New Proposal for Holistic Error Estimation
Schmidt, C.; Notz, S.; Striewe, W.; Ansari, J.; Jung, A.; Kramer, K.
Conference Paper
2011Der FracTherm-Kollektor - erste Messergebnisse von Prototypen
Hermann, M.; Thoma, C.; Koch, L.; Dupeyrat, P.
Conference Paper
2011Optimierung und Validierung des Luftkollektorteststandes im Rahmen des Projektes Luko-E
Thoma, C.; Richter, J.; Mehnert, S.; Kramer, K.; Stryi-Hipp, G.
Conference Paper
2011Recent advances in the development and testing of hybrid PV-thermal collectors
Dupeyrat, P.; Helmers, H.; Fortuin, S.; Kramer, K.
Conference Paper
2011Testing Methods for Innovative Collectors and Systems
Fahr, S.; Kramer, K.; Mehnert, S.; Richter, J.; Thoma, C.; Schmidt, C.; Schäfer, A.; Geimer, K.; Kuhn, T.; Ruschenburg, J.
Conference Paper
2011Testing process heat collectors - An overview on methodologies and categories
Kramer, K.; Mehnert, S.; Fischer, S.
Conference Paper
2011Towards a New Global Standard
Mehnert, S.; Kramer, K.; Kovacs, P.; Dias, P.; Fischer, S.; Mateu, E.; Navarro, P.; Helminger, F.
Conference Paper
2011Towards a new global standard for solar thermal collectors
Mehnert, S.; Kramer, K.; Kovacs, P.; Dias, P.; Fischer, S.; Mateu, E.; Navarro, P.; Helminger, F.
Conference Paper
2011Towards a unified standard for solar air heating collectors
Stryi-Hipp, G.; Kramer, K.; Richter, J.; Thoma, C.; Fortuin, S.; Mehnert, S.; Welz, C.
Conference Paper
2011Vermessung von thermischen Solarspeichern nach EN 12977 und Parameteridentifikation mit GenOpt
Schmidt, C.; Striewe, W.; Ansari, J.; Jung, A.; Notz, S.; Kramer, K.
Conference Paper
2010Entwicklung einer neuen, praxisnahen Methodik zur Prüfung von Wind- und Schneelasten an solarthermischen Kollektoren und ihren Bauteilen: Präsentation auf der 2. Solarthermie-Technologiekonferenz 2010, Berlin, Germany, 26.01.2010-27.01.2010
Kramer, K.; Schwantes, R.; Budde, J.
Presentation
2010Measurements and Benchmark of PV-T Collectors according to EN12975 and Development of a Standardized Measurement Procedure
Hofmann, P.; Dupeyrat, P.; Kramer, K.; Hermann, M.; Stryi-Hipp, G.
Conference Paper
2010Neuer Leistungsteststand zur Charakterisierung innovativer Kollektoren und optischer Komponenten
Fahr, S.; Schäfer, A.; Mehnert, S.; Kramer, K.; Hess, S.; Thoma, C.; Stryi-Hipp, G.; Luginsland, F.
Conference Paper
2010QAiST - Quality Assurance in Solar Thermal Heating and Cooling Technology: Keeping track with recent and upcoming developments
Kramer, K.; Mehnert, S.; Striewe, W.; Thoma, C.; Richter, J.; Jung, A.; Fahr, S.; Schäfer, A.; Stryi-Hipp, G.
Conference Paper
2010Solar thermal technology update
Rommel, M.; Kovács, P.; Kramer, K.
Journal Article
2010Temperature Measurement in Air Ducts - an Optimized Method for Solar Air Heaters
Thoma, C.; Martinez, Cerezo J.D.; Kramer, K.; Richter, J.; Mehnert, S.; Stryi-Hipp, G.
Conference Paper
2010Zwischenergebnisse aus einem Feldtest mit hocheffizienten Vakuumröhren-Solarluftkollektoren zur solaren Heizungsunterstützung
Thoma, C.; Colonna, P.; Mager, M.; Richter, J.
Conference Paper
2009Bewertung der normativen Anforderungen der Prüfung auf Schlagfestigkeit thermischer Kollektoren durch simulierten Hagelschlag mit Eiskugeln
Mehnert, S.; Steinhart, J.; Brachmann, S.; Siems, T.; Behringer, A.-M.; Mülhöfer, G.; Rommel, M.; Kramer, K.
Conference Paper
2009An innovative solar simulator for research and development of solar thermal collectors
Luginsland, F.; Steinmetz, J.; Zahler, C.; Häberle, A.; Kramer, K.
Conference Paper
2009Relation of ecological policy instruments and technological innovation in the solar thermal branch
Kramer, K.
Conference Paper
2007Solar Keymark-experiences with the European solar thermal quality label
Kramer, K.; Rommel, M.; Mehnert, S.; Schäfer, A.
Conference Paper
2006Erweiterung eines Solarsimulators zur Ermittlung des Winkelkorrekturfaktors thermischer Solarkollektoren
Mehnert, S.
Thesis
2006Vergleich der Wirkungsgradkennlinienmessung von Prozesswärmekollektoren mit dem Solarsimulator und dem Freiluftteststand
Thoma, C.
Thesis
2006Wirkungsgradmessung von Prozesswärmekollektoren bei Temperaturen bis 200 °C
Kramer, K.; Schüle, K.; Siems, T.; Schäfer, A.; Rommel, M.
Conference Paper
This publication list has been generated from the publication database Fraunhofer-Publica.

Solar Air Heating Collector Field Calculator and Optimizer for instantaneous Working Points

For covered solar air heating collectors, a thermo-hydraulic curve model was developed and implemented in an Excel tool at Fraunhofer ISE. The core feature is to calculate and optimize air collector field dimensions and mass flows at instantaneous working points in the system context.
The tool is used within the Solar Keymark certification. It converts the thermo-hydraulic air collector parameters in a way that they can be compared to each other and can be used for a simulation of the collector annual output in ScenoCalc.

The Excel tool can also be used to determine the thermo-hydraulic air collector parameters based on measurement results according to EN ISO 9806.
The tool is ready for system planning, which means that collector fields can be dimensioned and results can be used to choose fans. It supports air collector development, and it is conveniently structured for scientific studies.

Important remark: The basis for AirCow is a measurement of the solar air heating collector in closed loop operation according to EN ISO 9806. The results of a measurement in open to ambient operation is not sufficient to be calculated in AirCow. However, open to ambient solar air heating collectors can also be calculated with AirCow if a measurement in closed loop operation was performed according to EN ISO 9806.

Information on validity:
AirCow has been approved for official use by the Solar Keymark Network on December 20th, 2016.

Download

Aircow_v3.00.xlsm Format: *.xlsm (MS Excel 2010 or later with macros)
Size: 876.7 kB
Developed by: Christian Welz
Download version 3.00 (2016-09-30)
Aircow_v3.00_Manual.pdf Documentation / manual 53 pages, english
Format: *.pdf
Size: 3.6 MB
  Version history:
See last worksheet of modus "B. System Planning, Scientific Studies" within AirCow
We are accredited by the german Association for Accreditation (DAkkS) and authorized from european and international certifiers which ensures a high quality of our services.