Numerical investigation on the replacement of mercury by indium iodide in high-intensity discharge lamps

Gnybida, M Mykhaylo; Janssen, Jfj Jesper; Dijk, van J Jan; Suijker, Jlg Jos; Peerenboom, Ksc Kim; Rijke, AJ Arij; Gendre, MF; Kroesen, Gmw Gerrit

doi:10.1088/0022-3727/47/12/125201

Cited by 5 publications

(12 citation statements)

References 31 publications

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“…with ν I the spectral radiance, → s the direction vector for the radia tion, → n the normal vector to the surface area A d , V the volume corresponding to the local cylindrical shell and ν representing the frequency of the emitted radiation. For more details related to the calculation procedure of the transport coefficients, the energy balance or the calculation of q rad the reader is referred to [1].…”

Section: Modelmentioning

confidence: 99%

“…In previous work by Gnybida et al [1] the elemental mass frac tions were kept constant. Now the elemental mass fractions are calculated selfconsistently using the method developed by Peerenboom et al [5].…”

Section: Diffusionmentioning

confidence: 99%

“…Several attempts have been made to partially or completely replace it by a more environmentally friendly species. A few of these options were also discussed by Gnybida et al [1]. A short summary is given here: Born [2] tried to replace mer cury with zinc.…”

Section: Introductionmentioning

confidence: 99%

“…This species is known for its large amount of continuum radiation in both the visible and infrared ranges. In a previous paper [1] a simulation model for such a discharge has been presented. In that model radial diffusion was neglected.…”

Section: Introductionmentioning

confidence: 99%

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Modeling of diffusive plasmas in local thermodynamic equilibrium with integral constraints: application to mercury-free high pressure discharge lamp mixtures

Janssen

Suijker

Peerenboom

et al. 2017

J. Phys. D: Appl. Phys.

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The mercury free lamp model previously discussed in Gnybida et al (2014 J. Phys. D: Appl. Phys. 47 125201) did not account for selfconsistent diffusion and only included two molecular transitions. In this paper we apply, for the first time, a selfconsistent diffusion algorithm that features (1) species/mass conservation up to machine accuracy and (2) an arbitrary mix of integral (total mass) and local (cold spot) constraints on the composition. Another advantage of this model is that the total pressure of the gas is calculated self consistently. Therefore, the usage of a predetermined pressure is no longer required.Additionally, the number of association processes has been increased from 2 to 6. The population as a function of interatomic separation determines the spectrum of the emitted continuum radiation. Previously, this population was calculated using the limit of low densities. In this work an expression is used that removes this limitation. The result of these improvements is that the agreement between the simulated and measured spectra has improved considerably.

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Section: Modelmentioning

confidence: 99%

Section: Diffusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling of diffusive plasmas in local thermodynamic equilibrium with integral constraints: application to mercury-free high pressure discharge lamp mixtures

Janssen

Suijker

Peerenboom

et al. 2017

J. Phys. D: Appl. Phys.

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“…When products have to change, but user and consumer needs remain unchanged or are only marginally modified, new processes, products, and materials need to be actively developed. This replacement effect and market emergence occurred in the case of mercury, for example, when several new products were rapidly created to replace mercury after the Minamata convention (Born, 2001;Gnybida et al, 2014;Tew & Quelhas, 2018). Furthermore, it is possible that completely new needs, such as the need to reuse materials that have previously treated as waste only, emerge from changes in regulation (see Constantini & Crespi, 2013).…”

Section: Introductionmentioning

confidence: 99%

Innovation Management Responses to Regulation—sup-Directive and Replacing Plastic

Hurmelinna‐Laukkanen

Paukku

Taskila

2021

Int. J. Innov. Mgt.

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Changes in regulation trigger changes in the innovation environments. They may block specific development trajectories, but they may simultaneously inspire and stimulate completely new openings. In this study, we look into regulation that aims to address environmental problems and facilitate creation and diffusion of sustainable technologies and processes as we examine the responses of innovators to the regulation on plastic use and production—specifically, the so-called SUP-directive. A multiple-case study comprising six companies suggests that companies manage (with) the regulation-induced innovation and needs for change by adopting three distinctive strategies: (1) proactive change orientation, (2) reactive opportunity capturing, or (3) reactive survival mode. Acknowledging that sustainability-oriented regulation may push companies with environmentally friendly innovation activities and solutions towards reactive survival mode highlights the need for managerial agility in adjusting the solutions and the ability to adopt parallel innovation strategies. Observing the strategies adopted by innovators also is informative when evaluating whether the regulation meets its profound goals and intended effects.

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A 213-nm microwave-driven far-UVC light source and its optimization based on backpropagation artificial neural network

Zhong

Chen

Wang

2023

Optik

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Numerical investigation on the replacement of mercury by indium iodide in high-intensity discharge lamps

Cited by 5 publications

References 31 publications

Modeling of diffusive plasmas in local thermodynamic equilibrium with integral constraints: application to mercury-free high pressure discharge lamp mixtures

Modeling of diffusive plasmas in local thermodynamic equilibrium with integral constraints: application to mercury-free high pressure discharge lamp mixtures

Innovation Management Responses to Regulation—sup-Directive and Replacing Plastic

A 213-nm microwave-driven far-UVC light source and its optimization based on backpropagation artificial neural network

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