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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Roop, Jonathan Jeter, Sheldon Said, I. Abdel-Khalik Clifford, K. Ho |
| Copyright Year | 2014 |
| Abstract | One increasingly viable option for high temperature concentrator solar power (CSP) is a central receiver system with a particle heating receiver (PHR). A PHR system uses suitable particulates to capture and store energy. It is expected that the particles will be sustained at high temperatures (in the range of 300°C or 400°C to 700°C or 800°C or even 1000°C) on most typical days of plant operation, so there is interest in how the particle optical properties might change after prolonged high-temperature exposure. This paper presents the results from experiments conducted over a 5-month period in which samples of various types of particulates including silica sands and alumina proppants were exposed to high temperatures for extended periods of time. The reflectance of a bed of particles was measured at room temperature in 8 wavelength bands using the 410-Solar reflectometer device developed by Surface Optics Corporation. The infrared emittance was determined using the ETS-100 emissometer instrument, also developed by Surface Optics Corporation [1,2]. Particles were heated to 950°C and 350°C, and measurements were recorded at intervals during the exposure so that trends in the optical properties over time could be observed. From the measured data, the total solar absorptance and total hemispherical emittance at high temperature were computed; these results are also presented. |
| Sponsorship | Advanced Energy Systems Division |
| File Format | |
| ISBN | 9780791845868 |
| DOI | 10.1115/ES2014-6504 |
| Volume Number | Volume 1: Combined Energy Cycles, CHP, CCHP, and Smart Grids; Concentrating Solar Power, Solar Thermochemistry and Thermal Energy Storage; Geothermal, Ocean, and Emerging Energy Technologies; Hydrogen Energy Technologies; Low/Zero Emission Power Plants and Carbon Sequestration; Photovoltaics; Wind Energy Systems and Technologies |
| Conference Proceedings | ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology |
| Language | English |
| Publisher Date | 2014-06-30 |
| Publisher Place | Boston, Massachusetts, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Sands Temperature Heating Particulate matter Solar energy Solar power Optics Instrumentation High temperature Reflectometers Wavelength Reflectance |
| Content Type | Text |
| Resource Type | Article |
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