A comprehensive study of different gases in inductively coupled plasma torch operating at one atmosphere

Punjabi, Sangeeta B.; Joshi, N. K.; Mangalvedekar, H. A.; Lande, B. K.; Das, Anath Bandhu; Kothari, D.C.

doi:10.1063/1.3676598

Cited by 32 publications

(13 citation statements)

References 26 publications

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“…As the power is increased, the plasma expands radially and axially, the core volume of the plasma increases and gets closer to the quartz wall, the un-ionized gas also expands with increasing power, but the size of the quartz tube is limited and beyond a certain power, the plasma and gas are restricted from further expansion [10]. The ionization degree of the low temperature plasma is less than 1%, and there is a large amount of un-ionized gas.…”

Section: Effects Of the Input Power And The Coil Current Frequency On The Plasma Propertiesmentioning

confidence: 99%

“…Hao et al [9] investigated the effect of the discharge zone's geometry aspect ratio on the plasma at different pressures and powers, with a tendency to produce a high-density plasma at an aspect ratio of 0.72 and better uniformity at pressures of 0.5-10 Pa and an aspect ratio of 0.35. Punjabi et al [10] carried out two-dimensional numerical simulations with different gases as the plasma and studied the temperature, flow field, velocity distribution, and the variation in the plasma resistance under different operating conditions. The plasma volume of all gases increases with increasing power, and the cross-sectional area of the induced current increases.…”

Section: Introductionmentioning

confidence: 99%

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Multi-physics field simulation and parametric optimization of a medium-power inductively coupled plasma torch

Qiu

et al. 2021

J. Korean Phys. Soc.

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In this study, a two-dimensional model of a medium-power inductively coupled plasma (ICP) torch was established to investigate the effects of different geometric parameters on the plasma properties, such as the temperature, velocity and electromagnetic field by performing multi-physical field-coupling simulations. The effects of the coil position, number of coil turns, input power and inductive current frequency on the plasma properties were studied and discussed in detail for a medium-power ICP torch. The results show that the coil position can affect the plasma uniformity, i.e., with increasing distance between the coil and the middle quartz tube, the plasma uniformity increases. When the number of coil turns is small, the electromagnetic field intensity is strong. In addition, when the input power and the current frequency are enhanced, the plasma temperature and volume both increase. Due to the effect of E-H mode conversion hysteresis, as the input power is increased, the temperature changes little, but the electromagnetic field intensity and the plasma velocity increase significantly.

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Section: Effects Of the Input Power And The Coil Current Frequency On The Plasma Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-physics field simulation and parametric optimization of a medium-power inductively coupled plasma torch

Qiu

et al. 2021

J. Korean Phys. Soc.

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“…Keyword:: Plasma, plasmatron, inductively coupled plasma (ICP plasma), coal and biomass burning, gasification, modeling, simulation 1.Giriş ICP plazmatron, yüksek sıcaklıklarda gaz jeti üretmeye yarayan bir plazma kaynağı olup, yüksek entalpide gaz akışı sağlar [1] [2] [3]. Isıtılan gaz Argon, Oksijen, Nitrojen ve hava gibi çok farklı türlerde olabilir [4].…”

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İndüksi̇yon Eşleni̇kli̇ Argon Plazmasinda Akiş Debi̇si̇ Ve Bobi̇n Lokasyonunun Si̇stem Çalişma Parametreleri̇ne Etki̇si̇ İle İlgi̇li̇ Si̇mülasyonlar

Katırcıoğlu¹,

Balkan²,

Bozkurt³

2017

Academic Platform-Journal of Engineering and Science

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Plazmatronların üretebildikleri yüksek sıcaklıktaki plazma sayesinde kullanım alanları gün geçtikçe artmaktadır.Yüksek sıcaklıktaki ve hızdaki plazma akışları kömür ve biyokütle atıklarının yakılması, gazlaştırılması, hava araçlarının atmosfere yeniden giriş koşullarının simüle edilmesi, ısı koruma malzemeleri üretimi, plazma metalürjisi, aşınma-kaplama uygulamaları ve bilimsel araştırmalar gibi pek çok yüksek sıcaklık teknolojisinde kullanılmaktadır. Teknik gereksinimleri karşılayacak plazmanın tanımlanabilmesi ve tanımlanan plazma isterlerinin, üretimden önce simülasyonları yapılarak incelenmesi, zaman, maliyet ve teknik risklerin asgariye indirilmesi açısından çok önemlidir. Bu çalışmada düşük basınçta indüksiyon eşlenikli Argon plazması (Inductive Coupled Plasma-ICP) ile ilgili simülasyonlar gerçekleştirilmiştir. Simülasyonda kullanılan RF frekansı 13.56 MHz, vakum değeri 1 Torr seçilmiştir. Bu vakum değeri atmosferik yeniden giriş deneysel uygulamalarına uygun olarak seçilmiştir. Çalışmada; gaz akışı simülasyonu, ısı transfer simülasyonu ve plazma simülasyonu eşlenikli olarak gerçekleştirilmiştir. Gaz akış miktarı (Q), düşük ve yüksek debi etkilerinin net gözlenebilmesi için iki farklı değer olarak, Q1=3 mg/s ve Q2= 90mg/s seçilmiştir. Simülasyonlarda toplamda 7 farklı kimyasal reaksiyon hesaba katılmıştır. Sistemde oluşan manyetik alan ve bunlara karşılık gelen elektrik alan çizgileri, manyetik alan büyüklüğü dağılımı, sıcaklık dağılımı, konvektif ısı akış dağılımı, gaz akış hız dağılımı, gaz basıncı değişimi değerleri ve elektron yoğunluğu dağılımı, iki farklı gaz debisi için simülasyonlarda hesaplanmış ve bu iki durum için söz bu değerler birbirleriyle karşılaştırılmıştır. Son olarak sistemi dalgalı-AC akım ile enerjilendiren indüksiyon bobinlerinin yeri simetri ekseni-z boyunca yukarıya, gaz çıkışına doğru kaydırılmış, bobinlerin yeri sistem geometrisine göre ortada ve sonda iken simülasyonlar yapılmıştır. Bu hesaplarda her iki durum için bobin elektriksel gücü ve akış kütle debisi sabit tutulmuştur. Ardından bobinlerin lokasyonundaki değişimin elektron yoğunluğu ve plazma gaz sıcaklığına olan etkisi 1-boyutlu ve 2-boyutlu dağılımlarla incelenmiştir.

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“…However, arc heated facilities make use of electrodes to create an electrical arc to heat the test gas. This leads to contamination of the flow from the electrodes which is non-ideal in situations where high purity flows are desired, hence the favourability around inductively coupled plasma torches [3] [7] [18] [19]. Despite this drawback, plasma arc-jets are still utilised for simulating atmospheric entry conditions.…”

Section: Plasma Facilitiesmentioning

confidence: 99%

“…Mankind has contributed to the creation of the plasma state, with the development of plasma torches and arcjets for a wide range of industrial applications, from materials processing to aerospace engineering [2]. The ability of these torches to vary their operating gas, pressure and power input [3], make them attractive tools for the testing of thermal protection systems (TPS's) of space probes entering various atmospheres.…”

mentioning

confidence: 99%

UQ eSpace

O'Brien¹

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There are many incredible people whom require my sincerest thanks and appreciation for helping me to achieve this completed thesis. To my supervisor Dr. Rowan Gollan. Thank you for all of your assistance, advice and patience with this project over the past year. You have given me a greater appreciation for the world of academia and the incredible research and collaborative efforts that go into solving many of the world's technical challenges. I also thank you for having faith in my ability to learn CFD, and for your assistance debugging in the later stages of the project. To my incredible parents, brother and sisters, thank you for all of your love and support, not just in the past year, but for the past 5 and a half years of University. Only 6 more months to go! Finally, to all of those incredible friends whom have provided their advice and assistance with coding, linux, CFD and hypersonic theory in general. In particular, to Thomas Keith, Britt Chambers and Daniel Smith for all your Eilmer knowledge and troubleshooting, Jeremy Moran for your continuous questioning of my CFD activities, Connor Taylor-Turner for the great chats in Melbourne around mass flux (and for being a great Housemate), Eden Maynard, Adam Jones and Sylvie Loneragan for your help with Linux, Oliver Paxton and Ryan Wilson for pulling me away from the computer for too many coffee breaks. And finally, Pierre Mariotto for coming to my seminar and your support in answering my many questions. I have learnt an incredible amount in the past 12 months using tools such as Linux and command line, developing skills in CFD and other coding languages I had never heard of before this project. It has definitely been the most rewarding component of my degree thus far.

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A comprehensive study of different gases in inductively coupled plasma torch operating at one atmosphere

Cited by 32 publications

References 26 publications

Multi-physics field simulation and parametric optimization of a medium-power inductively coupled plasma torch

Multi-physics field simulation and parametric optimization of a medium-power inductively coupled plasma torch

İndüksi̇yon Eşleni̇kli̇ Argon Plazmasinda Akiş Debi̇si̇ Ve Bobi̇n Lokasyonunun Si̇stem Çalişma Parametreleri̇ne Etki̇si̇ İle İlgi̇li̇ Si̇mülasyonlar

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