caa a22 4500 445306165 CHVBK 20180317142613.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10762-011-9823-4 doi (NATIONALLICENCE)springer-10.1007/s10762-011-9823-4 High Temperature Millimeter Wave Radiometric and Interferometric Measurements of Slag-Refractory Interaction for Application to Coal Gasifiers [Elektronische Daten] [John McCloy, Jarrod Crum, S. Sundaram, Ryan Slaugh, Paul Woskov] Millimeter wave (MMW) radiometry can be used for simultaneous measurement of emissivity and temperature of materials under extreme environments such as in slagging coal gasifiers, where sensors have been identified as a key enabling technology need for process optimization. We present a dual-channel MMW heterodyne radiometer with active interferometric capability that allows simultaneous measurements of sample temperature, emissivity, and flow dynamics. Interferometric capability at 137GHz is supplied via a probe signal originating from a local oscillator allowing monitoring of sample dynamics such as volume expansion and thickness change. This capability has been used to monitor characteristic behavior between refractories and slag such as slag infiltration, slag melting, viscous flow, foaming, and crucible corrosion by the molten slag. These results show the promise of the MMW system for extracting process parameters from operating slagging coal gasifiers, providing valuable information for process efficiency, control, and increased productivity. Springer Science+Business Media, LLC, 2011 Emissivity nationallicence Coal gasification nationallicence Viscosity nationallicence Millimeter-wave nationallicence Radiometry nationallicence High temperature nationallicence McCloy John Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut Crum Jarrod Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut Sundaram S. Kazuo Inamori School of Engineering, Alfred University, 14802, Alfred, NY, USA aut Slaugh Ryan Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut Woskov Paul Plasma Science and Fusion Center, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/11(2011-11-01), 1337-1349 1866-6892 32:11<1337 2011 32 10762 https://doi.org/10.1007/s10762-011-9823-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-011-9823-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McCloy John Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut NATIONALLICENCE 700 1- Crum Jarrod Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut NATIONALLICENCE 700 1- Sundaram S. Kazuo Inamori School of Engineering, Alfred University, 14802, Alfred, NY, USA aut NATIONALLICENCE 700 1- Slaugh Ryan Pacific Northwest National Laboratory, 902 Battelle Blvd, MSIN K6-24, PO Box 999, 99352, Richland, WA, USA aut NATIONALLICENCE 700 1- Woskov Paul Plasma Science and Fusion Center, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/11(2011-11-01), 1337-1349 1866-6892 32:11<1337 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer