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

Abstract

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).

Temperature- and Angle-Dependent Emissivity and Thermal Shock Resistance of the W/WAlN/WAlON/Al2O3-Based Spectrally Selective Absorber

“…A high-flux solar simulator with an Automated Sample Handling and Exposure System (ASHES) , was employed to assess the thermal shock resistance property of the selective absorber (Figure S4). The absorber (1 in.…”

Solar Methane Reforming Microreactor Proof-Of-Concept With A 2X2 Array on a Full-Scale Dish

“…Then, head loss measurements are individually performed on each reactor to make sure that the parallel flows into the 2x2 manifold is also equal. Reactors are then activated (Figure 2) using a 2.5-kW High Flux Solar Simulator (HFSS) based on the approach proposed by Bucknell University [7].…”