Plasma flow reactor for steady state monitoring of physical and chemical processes at high temperatures

Koroglu, Batikan; Mehl, Marco; Armstrong, Michael R.; Crowhurst, Jonathan C.; Weisz, David G.; Zaug, Joseph M.; Dai, Zurong; Radousky, Harry B.; Chernov, Alex; Ramon, Erick; Stavrou, Elissaios; Knight, Kim; Fabris, Andrea L.; Cappelli, Mark A.; Rose, Timothy P.

doi:10.1063/1.5001346

Title: Plasma flow reactor for steady state monitoring of physical and chemical processes at high temperatures

Journal Article · Mon Sep 11 00:00:00 EDT 2017 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.5001346· OSTI ID:1404842

Koroglu, Batikan ^[1]; Mehl, Marco ^[1]; Armstrong, Michael R. ^[1]; Crowhurst, Jonathan C. ^[1]; Weisz, David G. ^[1];

^[1]; Dai, Zurong ^[1]; Radousky, Harry B. ^[1]; Chernov, Alex ^[1]; Ramon, Erick ^[1]; Stavrou, Elissaios ^[1]; Knight, Kim ^[1]; Fabris, Andrea L. ^[2]; Cappelli, Mark A. ^[3]; Rose, Timothy P. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Stanford Univ., Stanford, CA (United States); Univ. of Surrey, Guildford (United Kingdom)
Stanford Univ., Stanford, CA (United States)

Here, we present the development of a steady state plasma flow reactor to investigate gas phase physical and chemical processes that occur at high temperature (1000 < T < 5000 K) and atmospheric pressure. The reactor consists of a glass tube that is attached to an inductively coupled argon plasma generator via an adaptor (ring flow injector). We have modeled the system using computational fluid dynamics simulations that are bounded by measured temperatures. In situ line-of-sight optical emission and absorption spectroscopy have been used to determine the structures and concentrations of molecules formed during rapid cooling of reactants after they pass through the plasma. Emission spectroscopy also enables us to determine the temperatures at which these dynamic processes occur. A sample collection probe inserted from the open end of the reactor is used to collect condensed materials and analyze them ex situ using electron microscopy. The preliminary results of two separate investigations involving the condensation of metal oxides and chemical kinetics of high-temperature gas reactions are discussed.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344; 14-ERD-077; 16-ERD-008

OSTI ID:: 1404842

Alternate ID(s):: OSTI ID: 1389134

Report Number(s):: LLNL-JRNL-730618; RSINAK

Journal Information:: Review of Scientific Instruments, Vol. 88, Issue 9; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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Experimental and modeling study of chemical-based strategies for mitigating dust formation in fusion reactors Koroglu, Batikan; Mehl, Marco; Crowhurst, Jonathan C. Plasma Physics and Controlled Fusion, Vol. 61, Issue 4 https://doi.org/10.1088/1361-6587/aaffe3	journal	February 2019
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Title: Plasma flow reactor for steady state monitoring of physical and chemical processes at high temperatures

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