Study of the Effect of Initial Plate Temperature in Jet Impingement Cooling Process
| dc.contributor.author | Gadala, Mohamed S. | |
| dc.contributor.author | Aslam, Fahad | |
| dc.contributor.author | Gomaa, Abdulrahman | |
| dc.date.accessioned | 2025-09-03T07:36:37Z | |
| dc.date.available | 2025-09-03T07:36:37Z | |
| dc.date.issued | 2024 | |
| dc.description | The rate of cooling and the nature of heat transfer on the plate surface, in run-out tables (ROT), significantly affect the final properties and the microstructure of the produced steel. Although heat treatment methods have been around for a while, research is still active to enhance steel quality and reliability by controlling the rate of heat extraction on ROT.[1] The prediction of the boiling behavior during the cooling process requires a reliable temperature measuring technique. Both numerical simulations[2-4] as well as experimental measurements[5-8] may be found in the literature for handling this complex cooling phenomenon. The complexity of the process arises from the fact that various boiling schemes, for example, nucleate, transition, and film boiling, do exist in the ROT cooling process. | |
| dc.description.abstract | The microstructure characteristics and the properties of rolled steels are significantly affected by the heat transfer and boiling phenomena occurring during the jet impingement cooling on run-out tables (ROT). In this study, experiments are conducted using a full industrial-scale ROT facility with rectangular plates made of low-carbon stainless steel (type 316L). The plate is heated up to a temperature ranging from 500C to 900C, then rapidly impinged using a single circular water jet, and the temperature drop is captured using an infrared thermal camera (FLIR A615 25°–50 Hz type). The dissipated heat flux, estimated experimentally using a 2D inverse heat conduction analysis, ranges from 6.1 to 3.4 MW m−2 across different zones along the plate surface. The impact of different initial plate temperature on the boiling behavior is studied by developing a 2D-computational fluid dynamics (CFD) model, and the results are closely aligned with the experimental findings. The results reveal that when estimating the heat flux from CFD simulations, the best accuracy is obtained when considering fluid temperature at a point close to the plate surface (about 1 μm above the surface). Furthermore, the maximum extracted heat flux (MHF) is significantly influenced by the initial temperature of the plate. Increasing the initial plate temperature from 500 to 900 °C led to an increase of 82% in the MHF in stagnation zone, and 137% increase in the parallel-flow region. The CFD model presented in this study and the full calculation of the boiling curves numerically will pave the road for investigating various practical parameters in jet impingement cooling. Keywords: microstructure characteristics, rolled steels, full industrial-scale ROT, single circular water jet, an infrared thermal camera, 2D-computational fluid dynamics (CFD) model | |
| dc.identifier.citation | Gadala, M. S., Gomaa, A., & Aslam, F. (2024). Study of the Effect of Initial Plate Temperature in Jet Impingement Cooling Process. steel research international, 95(12), 2400359. | |
| dc.identifier.doi | https://doi.org/10.1002/srin.202400359 | |
| dc.identifier.uri | https://repository.adu.ac.ae/handle/1/7355 | |
| dc.language.iso | en | |
| dc.publisher | Wiley | |
| dc.title | Study of the Effect of Initial Plate Temperature in Jet Impingement Cooling Process | |
| dc.type | Article |