Development of a truncated ellipsoidal reflector-based metal halide lamp solar simulator for characterization of photovoltaic cells

2020 ◽  
pp. 1-15
Author(s):  
Muhammad Abdullah Haroon Shah ◽  
Hamza Butt ◽  
Muaaz Farooq ◽  
Muhammad Nouman Ihsan ◽  
Muhammad Sajid ◽  
...  
Keyword(s):  
Photovoltaic Cells ◽  
Metal Halide ◽  
Solar Simulator ◽  
Metal Halide Lamp

scholarly journals Design and Characterization of a 7.2 KW Solar Simulator

2015 ◽  
Author(s):  
Antoine Boubault ◽  
Julius Yellowhair ◽  
Clifford K. Ho
Keyword(s):  
Computer Aided Design ◽  
Spot Size ◽  
Solar Simulator ◽  
System A ◽  
Metal Halide Lamp ◽  
Model Predictions ◽  
Average Irradiance ◽  
Aided Design ◽  
Good Agreement

A 7.2 kW radiative solar simulator was designed in order to perform accelerated testing on absorber materials for concentrating solar power (CSP) technologies. Computer-aided design (CAD) software integrating a ray-tracing tool was used to select appropriate components and optimize their positioning in order to achieve the desired concentration. The simulator comprises four identical units, each made out of an ellipsoidal reflector, a metal halide lamp and an adjustable holding system. A single unit was characterized and shows an experimental average irradiance of 257 kW m−2 on a 25.4 mm (1 inch) diameter spot. Shape, spot size and average irradiance are in good agreement with the model predictions. The innovative four-lamp solar simulator potentially demonstrates peak irradiance of 1140 kW m−2 and average irradiance of 878 kW m−2 over a 25.4 mm diameter spot. The costs per radiative and electric watt are calculated at $2.31 W−1 and $1.99 W−1, respectively.

scholarly journals Design, Modeling, and Characterization of a 10 kWe Metal Halide High Flux Solar Simulator

2018 ◽  
Vol 140 (4) ◽  
Author(s):  
Nathan P. Siegel ◽  
Jeffrey P. Roba
Keyword(s):  
Metal Halide ◽  
Transfer Efficiency ◽  
Total Power ◽  
Normal Vector ◽  
High Flux ◽  
Hardware Cost ◽  
Solar Simulator ◽  
Peak Flux ◽  
Optical Flux

We present the design and characterization of a high flux solar simulator (HFSS) based on metal halide lamps and built from commercially available components. The HFSS that we present was developed to support the evaluation of a solar thermochemical reactor prototype. The HFSS consists of an array of four independent lamp/reflector modules aimed at a common target location. Each module contains one 2500 We lamp and one electroformed ellipsoidal reflector having an interfocal distance of 813 mm. The modules are oriented with an angle relative to the target surface normal vector of 24.5 deg. Design simulations predicted that the peak flux of this HFSS would be 2980 kWth/m2, with a total power delivered to a 6-cm target of 3.3 kWth, for a transfer efficiency of 33.3%. Experimental characterization of the HFSS using optical flux mapping and calorimetry showed that the peak flux at the focal plane reached 2890±170 kWth/m2, while the total power delivered was 3.5±0.21 kWth for a transfer efficiency of 35.3%. The HFSS was built at a material cost of ∼$2700.00/module and a total hardware cost of ∼$11,000.00 for the four-lamp array. A seven-lamp version of this HFSS is predicted to deliver 5.6 kWth to a 6 cm diameter target at a peak flux of 4900 kWth/m2 at a hardware cost of ∼$19,000.00 ($3400.00/kWth delivered, $1100.00/kWe).

Infrared ellipsometric characterization of SixNy films on textured Si photovoltaic cells

2008 ◽  
Author(s):  
Mario Fernando. Saenger ◽  
Martin Schädel ◽  
Tino Hofmann ◽  
James Hilfiker ◽  
Jianing Sun ◽  
...  
Keyword(s):  
Photovoltaic Cells ◽  
Ellipsometric Characterization

Evaluation of Therapeutic Effectiveness of Photodynamic Therapy (PDT) Using Metal Halide Lamp for Actinic Keratosis and Bowen's Disease

2011 ◽  
Vol 73 (3) ◽  
pp. 260-265
Author(s):  
Toshinori BITO ◽  
Shun OHMORI ◽  
Mayuko YOSHIZAWA ◽  
Sanehito HARUYAMA ◽  
Yu SAWADA ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Actinic Keratosis ◽  
Metal Halide ◽  
Therapeutic Effectiveness ◽  
Bowen’S Disease ◽  
Bowen's Disease ◽  
Metal Halide Lamp

Guidelines for the characterization of metal halide nanocrystals

2021 ◽  
Author(s):  
Luca De Trizio ◽  
Ivan Infante ◽  
Ahmed L. Abdelhady ◽  
Sergio Brovelli ◽  
Liberato Manna
Keyword(s):  
Metal Halide

THE USE OF A METAL HALIDE LAMP FOR THE INDUCTION OF PHOTOHEMOLYSIS IN PORPHYRIA

1984 ◽  
Vol 11 (3) ◽  
pp. 225-232 ◽  
Author(s):  
Tetsuzo Honda ◽  
Shigeo Nonaka ◽  
Taro Ohgami ◽  
Fumio Murayama ◽  
Hikotaro Yoshida
Keyword(s):  
Metal Halide ◽  
Metal Halide Lamp

Design and Characterization of a Novel Upward Flow Reactor for the Study of High-Temperature Thermal Reduction for Solar-Driven Processes

2017 ◽  
Vol 139 (5) ◽  
Author(s):  
H. Evan Bush ◽  
Karl-Philipp Schlichting ◽  
Robert J. Gill ◽  
Sheldon M. Jeter ◽  
Peter G. Loutzenhiser
Keyword(s):  
High Temperature ◽  
Flow Reactor ◽  
Thermal Reduction ◽  
Heat Fluxes ◽  
O2 Evolution ◽  
Transfer Model ◽  
Upward Flow ◽  
Heating Rates ◽  
Solar Simulator

The design and characterization of an upward flow reactor (UFR) coupled to a high flux solar simulator (HFSS) under vacuum is presented. The UFR was designed to rapidly heat solid samples with concentrated irradiation to temperatures greater than 1000 °C at heating rates in excess of 50 K/s. Such conditions are ideal for examining high-temperature thermal reduction kinetics of reduction/oxidation-active materials by temporally monitoring O2 evolution. A steady-state, computational fluid dynamics (CFD) model was employed in the design to minimize the formation of eddies and recirculation, and lag and dispersion were characterized through a suite of O2 tracer experiments using deconvolution and the continuously stirred tank reactors (CSTR) in series models. A transient, CFD and heat transfer model of the UFR was combined with Monte Carlo ray tracing (MCRT) to determine radiative heat fluxes on the sample from the HFSS to model spatial and temporal sample temperatures. The modeled temperatures were compared with those measured within the sample during an experiment in which Co3O4 was thermally reduced to CoO and O2. The measured temperatures within the bed were bounded by the average top and bottom modeled bed temperatures for the duration of the experiment. Small variances in the shape of the modeled versus experimental temperatures were due to contact resistance between the thermocouple and particles in the bed and changes in the spectral absorptivity and emissivity as the Co3O4 was reduced to CoO and O2.

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