The optical properties of transparent insulation materials with complex structures can be characterised in many cases by the values for their transmittance and reflectance for ideal diffuse solar irradiation. A newly developed diffuse irradiation source allows quick and accurate measurements of the diffuse -hemispherical transmittance and reflectance of structured samples from 20 cm diameter up to 50 cm. Its newly developed inner coating, which consists of polytetrafluorethylene, allows the correct measurement of strongly selective angular and spectral properties of the samples
The experimental set-up is developed for detection of reflection and transparence coefficients of se...
A physical model developed from scattering theory by Hapke was applied to bidirectional reflectance ...
The directional-hemispherical (also sometimes called direct-diffuse) solar transmittance for several...
The optical properties of transparent insulation materials with complex structures can be characteri...
The determination of the hemispherical-hemispherical (or diffuse-diffuse) solar transmittance tau su...
Transparent insulation materials for solar energy applications are classified and described in this ...
Within a Franco-German research program on energy, one topic is the optical and thermal characterisa...
This thesis covers angle-resolved spectrophotometric measurements and modelling of diffuse reflectan...
The measurement of BRTF (Bi-directional reflectance and transmittance function) is described using a...
This thesis covers angle-resolved spectrophotometric measurements and modelling of diffuse reflectan...
A spectrophotometer system for spectral characterization of materials in the infrared has been built...
Video camera systems using reflective targets for measuring the flux distribution of concentrated so...
Directional emittance plays an important role in the calculation of radiative heat exchange. It part...
This paper reviews the experimental techniques used in measuring the thermal radiation properties of...
Abstract: For determining the optical performance of greenhouse covering materials other than standa...
The experimental set-up is developed for detection of reflection and transparence coefficients of se...
A physical model developed from scattering theory by Hapke was applied to bidirectional reflectance ...
The directional-hemispherical (also sometimes called direct-diffuse) solar transmittance for several...
The optical properties of transparent insulation materials with complex structures can be characteri...
The determination of the hemispherical-hemispherical (or diffuse-diffuse) solar transmittance tau su...
Transparent insulation materials for solar energy applications are classified and described in this ...
Within a Franco-German research program on energy, one topic is the optical and thermal characterisa...
This thesis covers angle-resolved spectrophotometric measurements and modelling of diffuse reflectan...
The measurement of BRTF (Bi-directional reflectance and transmittance function) is described using a...
This thesis covers angle-resolved spectrophotometric measurements and modelling of diffuse reflectan...
A spectrophotometer system for spectral characterization of materials in the infrared has been built...
Video camera systems using reflective targets for measuring the flux distribution of concentrated so...
Directional emittance plays an important role in the calculation of radiative heat exchange. It part...
This paper reviews the experimental techniques used in measuring the thermal radiation properties of...
Abstract: For determining the optical performance of greenhouse covering materials other than standa...
The experimental set-up is developed for detection of reflection and transparence coefficients of se...
A physical model developed from scattering theory by Hapke was applied to bidirectional reflectance ...
The directional-hemispherical (also sometimes called direct-diffuse) solar transmittance for several...