Experimental Investigation of Quenching Of Moving Hot Metal Plate with Water Using Flat Spray Nozzles

Mehdi, Bilal; Gopalkirshna, Suresh; Ryll, Stephan; Specht, Eckehard; Narayan, N. M.; Fritsching, U.

doi:10.11159/enfht22.101

Cited by 2 publications

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“…The model is validated with the experimental data and can successfully simulate all quenching regions during the cooling. Further details about the model can be found in [16], [17] and [18].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the local Heat Transfer of Quenching moving Metal Sheets made of different materials using Flat Spray Nozzles

Mehdi

Ryll

Specht

2023

Preprint

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Experimental investigations have been performed for the cooling of hot moving metal sheets of thickness 2 mm and 5 mm with the initial temperature of 500°C to 800°C by two flat spray nozzles. Tap water at room temperature is used as a coolant. Experiments are carried out for nickel, nicrofer, and aluminum alloy AA6082 with varying sheet velocity ( 5,10,15 mm/s) and nozzle inclination angle (45°,65°,90°). The temperature distribution on the backside of the sheet during the cooling is recorded with a high-speed infrared camera. The recorded thermal data are used in the inverse heat conduction analysis to estimate the local heat fluxes and temperatures on the quenched surface. The thermal images obtained are used to analyze the length of the pre-cooling, transition boiling, and nucleate boiling. The maximum heat flux, the DNB temperature, and the rewetting temperature are presented for researched parameters. The nozzle inclination angle has a weak influence. The higher the velocity and the thickness of the sheet are, the higher the maximum heat flux and the shorter the pre-cooling region. The reason is that the position of the max. heat flux is shifted downstream near to impingement region.

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Section: Introductionmentioning

confidence: 99%

Analysis of the local Heat Transfer of Quenching moving Metal Sheets made of different materials using Flat Spray Nozzles

Mehdi

Ryll

Specht

2023

Preprint

Self Cite

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“…This needs to be done to reduce the dependency of ceramic creative SMEs in Bali on clay supplies from outside Bali, such as from Kalimantan [18,19]. Apart from reducing dependency, using local raw materials also can provide various benefits [20][21][22][23][24]. One of them is reducing emissions from the transportation [17,25,26].…”

Section: Introductionmentioning

confidence: 99%

Potential clay from Bali to support clean production in the Bali ceramic industry

Prayasa,

Winantari,

Kristyawan

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The challenges for the Bali ceramics industry come from the emission side of the materials, production, and waste processing. In the future, the Balinese ceramics industry must develop to be greener and more sustainable. One of the way is reducing emissions from raw materials process. This research was conducted with the aim of mapping the potential of clay that can be used as a raw material for making ceramics, especially those from Bali. The method used was to review the literature on ceramic raw materials and conducted a survey to compile flow diagrams of materials, energy, and emissions from ceramic production in Bali. Then calculated the carbon dioxide (CO2) emissions that arise with the clay scheme come from inside and outside Bali. The results of the study indicate that there is potential for the use of clay from Buleleng and Tabanan areas, which can reduce carbon dioxide (CO2) emissions of the Balinese ceramic industry. However, its use needs to be re-examined from a process perspective because it has a higher iron oxide (Fe2O3) composition.

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Experimental Investigation of Quenching Of Moving Hot Metal Plate with Water Using Flat Spray Nozzles

Cited by 2 publications

References 0 publications

Analysis of the local Heat Transfer of Quenching moving Metal Sheets made of different materials using Flat Spray Nozzles

Analysis of the local Heat Transfer of Quenching moving Metal Sheets made of different materials using Flat Spray Nozzles

Potential clay from Bali to support clean production in the Bali ceramic industry

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