Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2019Parallel in-situ Measurement of Heliostat Aim Points in Central Receiver Systems by Image Processing Methods
Bern, G.; Schöttl, P.; Rooyen, D.W. van; Heimsath, A.; Nitz, P.
Journal Article
2018ALCHEMI - a low cost, high efficiency, optoelectronic HCPV module for 1000× operation
Duggan, G.; Johnson, A.D.; Davies, J.I.; Nitz, Peter; Wiesenfarth, Maike; Jakob, Peter; Iankov, Dimitre; Rey-Stolle, Ignacio; Algora, C.; Garcia, I.; Lombardero, I.; Caño, P.; Alburquerque, Olga; Theristis, Marios; Georghious, George E.
Conference Paper
2018Efficient modeling of variable solar flux distribution on solar tower receivers by interpolation of few discrete representations
Schöttl, P.; Bern, G.; Rooyen, D. van; Flesch, J.; Fluri, T.; Nitz, P.
Journal Article
2018Kalibrierungsverfahren und Kalibrierungsvorrichtung für eine Gruppe von Reflektoren zur Konzentration von Sonnenstrahlung auf einen Strahlungsempfänger
Bern, Gregor; Heimsath, Anna; Nitz, Peter; Rooyen, De Wet van; Schöttl, Peter
Patent
2018Low-Carbon-Industrie: Elektrifizierung und geschlossene Kohlenstoffkreisläufe
Schneider, Clemens; Lechtenböhmer, Stefan; Bauer, Thomas; Nitz, Peter; Hettesheimer, Tim; Wietschel, Martin; Meulenberg, Wilhelm; Gurtner, Richard
Conference Paper
2018Technical specification IEC TS 62989:2018
Arndt, T.; Askins, S.; Bengoechea, J.; Carter, S.; Dominguez, C.; Herrero, R.; Hornung, T.; Kasai, H.; Kogler, R.; Leutz, R.; Miller, D.; Nitz, P.; Scott, S.; Victoria, M.; Voarino, P.
Conference Paper
2018Verbesserungspotentiale für Silikonoptiken in der konzentrierenden Photovoltaik
Jakob, Peter
: Reinecke, Holger (Referent); Glunz, Stefan W. (Referent); Nitz, Peter Markus (Betreuer)
Dissertation
2017Innovative Solutions for Solar Tower Systems - Outcome of the HelioPack Project
Schöttl, P.; Rooyen, D.W. van; Bern, G.; Nitz, P.; Heimsath, A.
Presentation
2017Modelling and simulation of parabolic trough plants based on real operating data
Rohani, S.; Fluri, T.; Dinter, F.; Nitz, P.
Journal Article
2017Novel imaging closed loop control strategy for heliostats
Bern, G.; Schöttl, P.; Heimsath, A.; Nitz, P.
Conference Paper
2017The role of CSP in the electricity system of South Africa - technical operation, grid constraints, market structure and economics
Kost, C.; Friebertshäuser, C.; Hartmann, N.; Fluri, T.; Nitz, P.
Conference Paper
2017The role of draft facets in temperature effects in silicone-on-glass Fresnel lens applications
Jakob, P.; Nitz, P.
Conference Paper
2017Solar tower cavity receiver aperture optimization based on transient optical and thermo-hydraulic modeling
Schöttl, P.; Bern, G.; Rooyen, D.W. van; Heimsath, A.; Fluri, T.; Nitz, P.
Conference Paper
2016Novel sky discretization method for optical annual assessment of solar tower plants
Schöttl, P.; Ordónez Moreno, K.; van Rooyen, D.W.; Bern, G.; Nitz, P.
Journal Article
2016Optical advantages of astigmatic aberration corrected heliostats
Rooyen, W. van de; Schöttl, P.; Bern, G.; Heimsath, A.; Nitz, P.
Conference Paper
2016Optische Anordnung und Photovoltaikmodul, Verfahren zu deren Herstellung und Verwendungen hiervon
Hornung, Thorsten; Nitz, Peter; Kiefel, Peter; Schmid, Tobias; Schmidt, Thomas
Patent
2016Potential gain through implementation of astigmatic corrected heliostats
Rooyen, W. van de; Schöttl, P.; Bern, G.; Heimsath, A.; Nitz, P.; Dinter, F.; Harms, T.M.
Conference Paper
2016Quality control of Fresnel lens molds using deflectometry
Kiefel, P.; Nitz, P.
Conference Paper
2016Slope-deviation measurement of Fresnel-shaped mold surfaces
Kiefel, P.; Hornung, T.; Nitz, P.; Reinecke, H.
Journal Article
2016Specular reflectance of soiled glass mirrors - study on the impact of incidence angles
Heimsath, A.; Lindner, P.; Klimm, E.; Schmid, T.; Nitz P.; Ordóñez Moreno, K.; Elon, Y.; Am-Shallem, M.; Nitz, P.
Conference Paper
2015Angle resolved specular reflectance measured with VLABS
Heimsath, A.; Schmid, T.; Nitz, P.
Journal Article, Conference Paper
2015Calibration function for an experimental setup for the measurement of irradiance distributions via a transmitting diffuser
Schmid, T.; Hornung, T.; Nitz, P.
Journal Article
2015The distance temperature map as method to analyze optical properties of Fresnel lenses and their interaction with multi-junction solar cells
Hornung, T.; Kiefel, P.; Nitz, P.
Conference Paper
2015Extended heat loss and temperature analysis of three linear Fresnel receiver designs
Hofer, A.; Cuevas, F.; Heimsath, A.; Nitz, P.; Platzer, W.J.; Scholl, S.
Journal Article, Conference Paper
2015On the Way to the First CSP Pilot Plant in Jordan: the WECSP Project
Nitz, P.; Fluri, T.; Lude, S.; Meyer, R.; Alasis, E.; Tawalbeh, M.; Shahin, W.
Conference Paper
2015Specularity of concentrator mirrors for CPV measured with VLABS
Schmid, T.; Heimsath, A.; Hornung, T.; Nitz, P.
Conference Paper
2015Technical analysis and optimization of a high concentrating photovoltaic power tower
Ordóñez Moreno, K.; Heimsath, A.; Wiesenfahrt, M.; Schöttl, P.; Nitz, P.
Conference Paper
2014Characterization of optics for concentrating photovoltaic and solar thermal applications
Hornung, T.; Kiefel, P.; Heimsath, A.; Schmid, T.; Schmidt, T.; Nitz, P.
Conference Paper
2014Hybrid PV-thermal collector development: Concepts, experiences, results and research needs
Fortuin, S.; Hermann, M.; Stryi-Hipp, G.; Nitz, P.; Platzer, W.
Conference Paper, Journal Article
2014Light diffraction by concentrator Fresnel lenses
Hornung, T.; Nitz, P.
Journal Article
2014Measurement of small angle ray deviations for concentrating solar applications: Circumsolar radiation and mirror beam spread
Nitz, P.; Schmid, T.; Schmidt, T.; Hornung, T.; Heimsath, A.
Conference Paper
2014Optical Loss Due to Diffraction by Concentrator Fresnel Lenses
Hornung, T.; Nitz, P.
Conference Paper
2014Quantifying optical loss factors of small linear concentrating collectors for process heat application
Heimsath, A.; Bern, G.; Rooyen, D.W. van; Nitz, P.
Conference Paper, Journal Article
2014Scientific System for High-resolution Measurement of the Circumsolar Radiation
Schrott, S.; Schmidt, T.; Hornung, T.; Nitz, P.
Conference Paper
2013High temperature latent heat storage with a screw heat exchanger: Design of prototype
Zipf, V.; Neuhäuser, A.; Willert, D.; Nitz, P.; Gschwander, S.; Platzer, W.
Journal Article
2013Indoor characterization of reflective concentrator optics
Schmid, T.; Frick, M.; Hornung, T.; Nitz, P.
Conference Paper
2013Linear Fresnel Collector receiver: Heat loss and temperatures
Heimsath, A.; Cuevas, F.; Hofer, A.; Nitz, P.; Platzer, W.J.
Conference Paper
2012Analytical investigation of diffraction in Fresnel lens concentrators
Hornung, T.; Nitz, P.
Conference Paper
2012Estimation of the influence of Fresnel lens temperature on energy generation of a concentrator photovoltaic system
Hornung, T.; Steiner, M.; Nitz, P.
Journal Article
2012Estimation of the influence of Fresnel lens temperature on energy generation of a concentrator photovoltaic system
Hornung, T.; Steiner, M.; Nitz, P.
Conference Paper
2012Fresnel lens concentrator with improved thermal behavior
Hornung, T.; Neubauer, M.; Gombert, A.; Nitz, P.
Conference Paper
2012Indoor characterization of secondary optical elements
Schmid, T.; Hornung, T.; Nitz, P.
Conference Paper
2011Middle East and North Africa Region assessment of the local manufacturing potential for concentrated solar power (CSP) projects
Gazzo, A.; Gousseland, P.; Verdier, J.; Kost, C.; Morin, G.; Engelken, M.; Schrof, J.; Nitz, P.; Selt, J.; Platzer, W.; Ragwitz, M.; Boie, I.; Hauptstock, D.; Eichhammer, W.
Report
2011Optical arrangement for concentration of radiation in solar cell concentrator module, has total internal reflection Fresnel lens region that is assigned with focus arranged in refractive Fresnel lens region
Hornung, T.; Nitz, P.; Gombert, A.
Patent
2011An optical model of the fix-focus scheffler reflector
Rooyen, W. van de; Heimsath, A.; Nitz, P.; Platzer, W.
Conference Paper
2010Assessment of Optical Errors of Concentrator Optics for the Optimisation of Design and Production
Nitz, P.; Hornung, T.; Kutscheid, G.; Heimsath, A.
Presentation
2010Optics for Concentrating and non Concentrating Photovoltaics
Nitz, P.
Presentation
2010Temperature and wavelength dependent measurement and simulation of fresnel lenses for concentrating photovoltaic
Hornung, T.; Bachmaier, A.; Nitz, P.; Gombert, A.
Conference Paper
2010Temperature dependent measurement and simulation of fresnel lenses for concentrating photovoltaics
Hornung, T.; Bachmaier, A.; Nitz, P.; Gombert, A.
Conference Paper
2010Verfahren und Vorrichtung zur Speicherung und Abgabe von Wärme mittels eines Phasenwechselmaterials
Neuhäuser, A.; Nitz, P.; Platzer, W.
Patent
2009Wärmedämmung
Weinländer, H.; Erhorn, H.; Schmidt, D.; Platzer, W.; Nitz, P.
Conference Paper
2008Photovoltaik-Vorrichtung und Verfahren zur Herstellung einer Konzentratoroptik
Nitz, P.
Patent
2008Second stage reflective and refractive optics for concentrator photovoltaics
Jaus, J.; Nitz, P.; Peharz, G.; Siefer, G.; Schult, T.; Siefer, G.; Wolf, O.; Passig, M.; Gandy, T.; Bett, A.W.
Conference Paper
2007Jalousie mit transluzenten und lichtundurchlaessigen Teilen
Kuhn, T.; Nitz, P.; Meyer, C.
Patent
2007Solar control
Herkel, S.; Kuhn, T.; Nitz, P.
Book Article
2007Verglasung mit mikrostrukturierten optisch-funktionalen Komponenten
Nitz, P.; Bläsi, B.; Mick, J.; Walze, G.; Gombert, A.
Presentation
2006Rigorous validation of the lateral Goos-Hänchen shift in microstructured sun shading systems
Walze, G.; Gombert, A.; Nitz, P.; Blaesi, B.
Conference Paper
2006Solarkollektor mit transluzenter Abdeckung
Nitz, P.
Patent
2006Verfahren zur Herstellung der Photoelektrode einer Solarzelle
Kern, R.; Nitz, P.; Hore, S.
Patent
2005Combination of microstructures and optically functional coatings for solar control glazing
Walze, G.; Nitz, P.; Ell, J.; Georg, A.; Gombert, A.; Hoßfeld, W.
Conference Paper, Journal Article
2005Scattering spherical voids in nanocrystalline TiO2 - Enhancement of efficiency in dye-sensitized solar cells
Hore, S.; Nitz, P.; Vetter, C.; Prahl, C.; Niggemann, M.; Kern, R.
Journal Article
2005Solar control with thermotropic layers
Nitz, P.; Hartwig, H.
Conference Paper, Journal Article
2004Lichtlenkende Mikrostrukturen mit optisch-funktionalen Beschichtungen
Nitz, P.; Gombert, A.; Bläsi, B.; Georg, A.; Walze, G.; Hoßfeld, W.
Conference Paper
2004A rigorous study of diffraction effects on the transmission of linear dielectric micro-reflector arrays
Gombert, A.; Bühler, C.; Hoßfeld, W.; Mick, J.; Bläsi, B.; Walze, G.; Nitz, P.
Journal Article
2004Some application cases and related manufacturing techniques for optically functional microstructures on large areas
Gombert, A.; Bläsi, B.; Bühler, C.; Nitz, P.; Mick, J.; Hoßfeld, W.; Niggemann, M.
Journal Article
2004Sonnenschutzvorrichtung mit einer Vielzahl von parallel zueinander orientierter Lamellen
Nitz, P.; Buehler, C.; Platzer, W.; Kuhn, T.; Gombert, A.; Blaesi, B.; Wittwer, V.
Patent
2004Vorrichtung zur Lichtlenkung und Verfahren zur Herstellung der Vorrichtung
Blaesi, B.; Hossfeld, W.; Gombert, A.; Boerner, V.; Nitz, P.; Buehler, C.; Mick, J.
Patent
2003Application of microstructured surfaces in architectural glazings
Hossfeld, W.; Wittwer, V.; Nitz, P.; Gombert, A.; Bläsi, B.; Bühler, C.; Georg, A.; Mick, J.
Conference Paper
2003Application of microstructured surfaces in architectural glazings
Hoßfeld, W.; Wittwer, V.; Nitz, P.; Gombert, A.; Bläsi, B.; Bühler, C.; Walze, G.; Georg, A.
Conference Paper
2003Backofen mit Kuehleinrichtung
Bundy, S.; Graf, W.; Lebacher, R.; Nitz, P.; Rabenstein, K.; Roch, K.; Schnell, W.; Wagner, M.
Patent
2003Microstructured surfaces in architectual glazings
Bläsi, B.; Bühler, C.; Georg, A.; Gombert, A.; Hoßfeld, W.; Mick, J.; Nitz, P.; Walze, G.; Wittwer, V.
Conference Paper
2003Replicated microstructures with optical functions in solar and display application
Gombert, A.; Bläsi, B.; Bühler, C.; Nitz, P.; Mick, J.; Hossfeld, W.; Niggemann, M.
Conference Paper
2003Schalt- und regelbare Verglasungen. Tl.1
Nitz, P.; Wagner, A.
Journal Article
2003Schalt- und regelbare Verglasungen. Tl.2
Nitz, P.; Wagner, A.
Journal Article
2003Schalt- und regelbare Verglasungen. Tl.3
Nitz, P.; Wagner, A.
Journal Article
2003Schalt- und regelbare Verglasungen. Tl.4
Nitz, P.; Wagner, A.
Journal Article
2003Sonnenschutz mit thermotropen Schichten
Nitz, P.
Conference Paper
2003Sonnenschutz und Lichtlenkung durch mikrostrukturierte Oberflächen
Nitz, P.; Gombert, A.; Bläsi, B.; Georg, A.; Mick, J.; Bühler, C.; Walze, G.; Hossfeld, W.
Conference Paper
2003Sonnenschutzvorrichtung
Nitz, P.; Buehler, C.; Gombert, A.; Blaesi, B.
Patent
2003Thermotrope Schichten und Lichtlenkstrukturen
Nitz, P.
Conference Paper
2003Vorrichtung zur Lichtlenkung aus wenigstens einem teiltransluzentem Flaechenmaterial
Graf, W.; Georg, A.; Nitz, P.; Buehler, C.; Gombert, A.; Wittwer, V.
Patent
2002Application of microstructured surfaces in architectural glazings
Wittwer, V.; Nitz, P.; Gombert, A.
Conference Paper
2002Facade systems with variable solar control using thermotropic polymer blends
Raicu, A.; Wilson, H.R.; Nitz, P.; Platzer, W.; Wittwer, V.; Jahns, E.
Journal Article
2002Optik und Herstellung von mikrostrukturierten Oberflächen für Tageslichtanwendungen
Gombert, A.; Bläsi, B.; Nitz, P.; Bühler, C.
Conference Paper
2001Strengthening of silica gels and aerogels by washing and aging processes
Einarsrud, M.A.; Nilsen, E.; Rigacci, A.; Pajonk, G.M.; Buathier, S.; Valette, D.; Durant, M.; Chevalier, B.; Nitz, P.; Ehrburger-Dolle, F.
Journal Article
2000Thermotropic systems - Recent results on component characterisation and building integration
Raicu, A.; Wilson, H.R.; Nitz, P.; Jahns, E.; Platzer, W.; Wittwer, V.
Conference Paper
2000Überhitzungsschutz durch thermotrop schaltbare Elemente an der Fassade. Stand der Forschung
Raicu, A.; Wilson, H.R.; Nitz, P.; Tahus, E.
Journal Article
1999Optische Modellierung und Vermessung thermotroper Systeme
Nitz, P.
Dissertation
1999Vorrichtung zur Lichtumlenkung mittels Totalreflexion
Wirth, H.; Nitz, P.; Wittwer, V.
Patent
1998Thermotrope Schichten - Auf dem Weg zum System
Wilson, H.R.; Raicu, A.; Nitz, P.; Jahns, E.; Rommel, M.; Wendker, K.
Conference Paper
1998Verbundvorhaben Thermotrop II. Optische und energetische Charakterisierung, Systementwicklung und -simulation
Nitz, P.; Wittwer, V.
Book Article
1996Thermotrope Materialien und Systeme zum Überhitzungsschutz
Wilson, H.R.; Raicu, A.; Nitz, P.; Russ, C.
Journal Article
1995Anwendung thermotropher Schichten in solarthermischen Systemen
Nitz, P.; Wilson, H.R.; Raicu, A.; Platzer, W.J.
Abstract
1995Thermotrope Schichten als Regelungsmöglichkeit hoher solarer Gewinne bei Gebäuden
Raicu, A.; Wilson, H.R.; Nitz, P.; Ferber, J.
Conference Paper
1995Thermotropic glazing
Wilson, H.R.; Raicu, A.; Nitz, P.; Ferber, J.
Conference Paper
1994Protection against overheating with thermotropic materials
Wilson, H.R.; Raicu, A.; Nitz, P.; Rommel, M.; Ferber, J.
Conference Paper
1994Thermochromic and thermotropic layers in TI facades for the prevention of overheating
Platzer, W.J.; Nitz, P.
Conference Paper
1994Überhitzungsschutz mit thermotropen Schichten
Wilson, H.R.; Raicu, A.; Rommel, M.; Nitz, P.
Conference Paper