A New High-Flux Solar Furnace for High-Temperature Thermochemical Research

1999 ◽  
Vol 121 (1) ◽  
pp. 77-80 ◽  
Author(s):  
P. Haueter ◽  
T. Seitz ◽  
A. Steinfeld
Keyword(s):  
High Temperature ◽  
Peak Concentration ◽  
Optical Design ◽  
Operating Performance ◽  
Solar Fuels ◽  
Solar Furnace ◽  
High Flux ◽  
Thermochemical Processing ◽  
Design Characteristics ◽  
Concentration Ratios

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.

A High-Flux Solar Furnace for Undergraduate Engineering Education and High-Temperature Thermochemistry Research

2014 ◽  
Author(s):  
G. Scott Duncan ◽  
Shahin Nudehi ◽  
Robert Palumbo ◽  
Luke J. Venstrom
Keyword(s):  
High Temperature ◽  
Engineering Students ◽  
Optical Design ◽  
Solar Furnace ◽  
Undergraduate Engineering ◽  
Chemistry Research ◽  
Energy Science ◽  
Undergraduate Engineering Education ◽  
Motivating Factor ◽  
Engineering Pedagogy

The optical design and engineering features of a 10 kW solar furnace now operational at Valparaiso University are described. The solar furnace is anticipated to achieve a mean concentration ratio of 3000 suns over a 6 cm diameter focus. It will support high-temperature solar chemistry research and undergraduate engineering pedagogy. Many of the components of the solar furnace were designed and constructed by undergraduate engineering students. Some of these students cite their participation in the solar furnace project as the motivating factor for continuing to work in the area of energy science in industry or graduate school.

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 ◽  
...  
Keyword(s):  
Optical Design ◽  
High Flux ◽  
Solar Simulator ◽  
Radiative Fluxes ◽  
Solar Systems ◽  
High Temperature Materials ◽  
Radiative Power ◽  
Thermochemical Processing ◽  
Average Flux ◽  
Circular Target

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.

A New 75 kW High-Flux Solar Simulator for High-Temperature Thermal and Thermochemical Research

2003 ◽  
Vol 125 (1) ◽  
pp. 117-120 ◽  
Author(s):  
D. Hirsch, ◽  
P. v. Zedtwitz, and ◽  
T. Osinga ◽  
J. Kinamore ◽  
A. Steinfeld
Keyword(s):  
High Temperature ◽  
Optical Design ◽  
High Flux ◽  
Solar Simulator ◽  
Experimental Platform ◽  
Radiative Power ◽  
Thermochemical Processes ◽  
And Performance

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.

The Potential of Photoelectrochemical Carbon Sinks

2018 ◽  
Author(s):  
Matthias May ◽  
Kira Rehfeld
Keyword(s):  
Global Warming ◽  
High Temperature ◽  
Greenhouse Gas ◽  
Large Scale ◽  
High Efficiency ◽  
Carbon Sink ◽  
Solar Fuels ◽  
Negative Emissions ◽  
Viable Approach ◽  
Low Sensitivity

Greenhouse gas emissions must be cut to limit global warming to 1.5-2C above preindustrial levels. Yet the rate of decarbonisation is currently too low to achieve this. Policy-relevant scenarios therefore rely on the permanent removal of CO<sub>2</sub> from the atmosphere. However, none of the envisaged technologies has demonstrated scalability to the decarbonization targets for the year 2050. In this analysis, we show that artificial photosynthesis for CO<sub>2</sub> reduction may deliver an efficient large-scale carbon sink. This technology is mainly developed towards solar fuels and its potential for negative emissions has been largely overlooked. With high efficiency and low sensitivity to high temperature and illumination conditions, it could, if developed towards a mature technology, present a viable approach to fill the gap in the negative emissions budget.<br>

The Potential of Photoelectrochemical Carbon Sinks

2018 ◽  
Author(s):  
Matthias May ◽  
Kira Rehfeld
Keyword(s):  
Global Warming ◽  
High Temperature ◽  
Greenhouse Gas ◽  
Large Scale ◽  
High Efficiency ◽  
Carbon Sink ◽  
Solar Fuels ◽  
Negative Emissions ◽  
Viable Approach ◽  
Low Sensitivity

Greenhouse gas emissions must be cut to limit global warming to 1.5-2C above preindustrial levels. Yet the rate of decarbonisation is currently too low to achieve this. Policy-relevant scenarios therefore rely on the permanent removal of CO<sub>2</sub> from the atmosphere. However, none of the envisaged technologies has demonstrated scalability to the decarbonization targets for the year 2050. In this analysis, we show that artificial photosynthesis for CO<sub>2</sub> reduction may deliver an efficient large-scale carbon sink. This technology is mainly developed towards solar fuels and its potential for negative emissions has been largely overlooked. With high efficiency and low sensitivity to high temperature and illumination conditions, it could, if developed towards a mature technology, present a viable approach to fill the gap in the negative emissions budget.<br>

Design of a New 45 kWe High-Flux Solar Simulator for High-Temperature Solar Thermal and Thermo-Chemical Research

2010 ◽  
Author(s):  
Katherine R. Krueger ◽  
Jane H. Davidson ◽  
Wojciech Lipin´ski
Keyword(s):  
High Temperature ◽  
Focal Plane ◽  
Flux Distribution ◽  
Solar Thermal ◽  
Optimized Design ◽  
High Flux ◽  
Chemical Research ◽  
Solar Simulator ◽  
Peak Flux ◽  
The Common

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.

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