A Novel 50kW 11,000 suns High-Flux Solar Simulator Based on an Array of Xenon Arc Lamps

2006 ◽  
Vol 129 (4) ◽  
pp. 405-411 ◽  
Author(s):  
Jörg Petrasch ◽  
Patrick Coray ◽  
Anton Meier ◽  
Max Brack ◽  
Peter Häberling ◽  
...  

A novel high-flux solar simulator, capable of delivering over 50kW of radiative power at peak radiative fluxes exceeding 11,000 suns, is operational at the Paul Scherner Institute. It comprises an array of ten Xe arcs, each close-coupled with ellipsoidal specular reflectors of common focus. Its optical design, main engineering features, and operating performance are described. The Monte Carlo ray-tracing technique is applied to optimize the geometrical configuration for maximum source-to-target transfer efficiency of radiative power. Calorimeter measurements indicated an average flux of 6800kW∕m2 over a 60-mm-diameter circular target, which corresponds to stagnation temperatures above 3300K. This research facility simulates the radiation characteristics of highly concentrating solar systems and serves as an experimental platform for investigating the thermochemical processing of solar fuels and for testing advanced high-temperature materials.

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
Katherine R. Krueger ◽  
Wojciech Lipiński ◽  
Jane H. Davidson

The University of Minnesota's high flux simulator delivers radiative power of approximately 9.2 kW over a Ø60 mm circular area located in the focal plane, corresponding to an average flux of 3200 kW m−2, with a peak flux of 7300 kW m−2.


2003 ◽  
Vol 125 (1) ◽  
pp. 117-120 ◽  
Author(s):  
D. Hirsch, ◽  
P. v. Zedtwitz, and ◽  
T. Osinga ◽  
J. Kinamore ◽  
A. Steinfeld

A new high-flux solar simulator, capable of delivering up to 75 kW of continuous radiative power at peak fluxes exceeding 4250 kW/m2, is operational at the ETH-Zurich. Its optical design and performance are described. This unique facility serves principally as an experimental platform for investigating thermal and thermochemical processes at temperatures up to 3000°K.


1999 ◽  
Vol 121 (1) ◽  
pp. 77-80 ◽  
Author(s):  
P. Haueter ◽  
T. Seitz ◽  
A. Steinfeld

A new high-flux solar furnace, capable of delivering up to 40kW at peak concentration ratios exceeding 5000, is operational at PSI. Its optical design characteristics, main engineering features, and operating performance are described. This solar concentrating facility will be used principally for investigating the thermochemical processing of solar fuels at temperatures as high as 2500 K.


Author(s):  
Jo¨rg Petrasch ◽  
Aldo Steinfeld

The optical characteristics of a high-flux solar simulator that comprises an array of Xe-arc lamps with ellipsoidal specular reflectors of common focus is examined using the Monte Carlo ray tracing technique. The parameters varied are arc diameter, focal length, eccentricity, truncation diameter, and angular error of specular reflection. The geometrical design of the truncated ellipsoidal reflector is optimized for maximum transfer efficiency, defined as the portion of radiation intercepted by a circular target centered at the common focal point. An array of ten 15 kW Xe-arc lamps of 9 mm electrode gap and 35% electrical-to-radiant efficiency, each closed-coupled with an ellipsoidal reflector of optimum design, should be capable of delivering an average radiative power flux exceeding 5900 kW/m2 over a 6 cm-diameter circular target, with an overall transfer efficiency of 31.9%.


2014 ◽  
Vol 137 (2) ◽  
Author(s):  
Roman Bader ◽  
Sophia Haussener ◽  
Wojciech Lipiński

We present a systematic approach to the design of a set of high-flux solar simulators (HFSSs) for solar thermal, thermochemical, and materials research. The generic simulator concept consists of an array of identical radiation modules arranged in concentric rows. Each module consists of a short-arc lamp coupled to a truncated ellipsoidal specular reflector. The positions of the radiation modules are obtained based on the rim angle, the number of concentric rows, the number of radiation modules in each row, the reflector radius, and a reflector spacing parameter. For a fixed array of radiation modules, the reflector shape is optimized with respect to the source-to-target radiation transfer efficiency. The resulting radiative flux distribution is analyzed on flat and hemispherical target surfaces using the Monte Carlo ray-tracing technique. An example design consists of 18 radiation modules arranged in two concentric rows. On a 60-mm dia. flat target area at the focal plane, the predicted radiative power and flux are 10.6 kW and 3.8 MW m−2, respectively, and the predicted peak flux is 9.5 MW m−2.


Author(s):  
Katherine R. Krueger ◽  
Jane H. Davidson ◽  
Wojciech Lipin´ski

In this paper, we present a systematic procedure to design a solar simulator for high-temperature concentrated solar thermal and thermo-chemical research. The 45 kWe simulator consists of seven identical radiation units of common focus, each comprised of a 6.5 kWe xenon arc lamp close-coupled to a precision reflector in the shape of a truncated ellipsoid. The size and shape of each reflector is optimized by a Monte Carlo ray tracing analysis to achieve multiple design objectives, including high transfer efficiency of radiation from the lamps to the common focal plane and desired flux distribution. Based on the numerical results, the final optimized design will deliver 7.5 kW over a 6-cm diameter circular disc located in the focal plane, with a peak flux approaching 3.7 MW/m2.


2017 ◽  
Vol 37 (6) ◽  
pp. 0623003
Author(s):  
杜志强 Du Zhiqiang ◽  
张黎明 Zhang Liming ◽  
司孝龙 Si Xiaolong ◽  
陈洪耀 Chen Hongyao ◽  
徐伟伟 Xu Weiwei ◽  
...  

2018 ◽  
Vol 145 ◽  
pp. 201-211 ◽  
Author(s):  
Jun Xiao ◽  
Xiudong Wei ◽  
Raúl Navío Gilaber ◽  
Yan Zhang ◽  
Zengyao Li
Keyword(s):  

2014 ◽  
Vol 57 ◽  
pp. 590-596 ◽  
Author(s):  
Jian Li ◽  
José Gonzalez-Aguilar ◽  
Carlos Pérez-Rábago ◽  
Hussein Zeaiter ◽  
Manuel Romero

Author(s):  
Roman Bader ◽  
Gaël Levêque ◽  
Sophia Haussener ◽  
Wojciech Lipiński

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