The Experts below are selected from a list of 0 Experts worldwide ranked by ideXlab platform

Juan José Arribas - One of the best experts on this subject based on the ideXlab platform.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2015
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆ T _w) of 90 °C and a system performance ( ε ) around 77 % could be obtained within operation constraints.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2014
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆T w) of 90 °C and a system performance (e) around 77 % could be obtained within operation constraints.

Arturo Villar - One of the best experts on this subject based on the ideXlab platform.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2015
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆ T _w) of 90 °C and a system performance ( ε ) around 77 % could be obtained within operation constraints.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2014
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆T w) of 90 °C and a system performance (e) around 77 % could be obtained within operation constraints.

Jorge Parrondo - One of the best experts on this subject based on the ideXlab platform.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2015
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆ T _w) of 90 °C and a system performance ( ε ) around 77 % could be obtained within operation constraints.

  • Waste heat recovery technology in Continuous Casting Process
    Clean Technologies and Environmental Policy, 2014
    Co-Authors: Arturo Villar, Jorge Parrondo, Juan José Arribas
    Abstract:

    The study has been conducted on waste heat recovery (WHR) field in a Continuous Casting Process at an integrated steel mill. The goal was to analyze an innovative heat recovery solution to accomplish energy efficiency opportunities, increase the sustainability, synergies with other industrial Continuous operations, and protect the environment, as well as save costs. A real-world application for heat recovery from solids using WHR after oxygen cutting machines of slabs in Continuous Casting Process has been proposed. To study new ways to reduce energy use and emissions, a numerical simulation software was used. The solution proposed has two main items: first, waste heat is covered by a steel thermal shield, and second, is a progressive absorption of waste heat by the water flow in pipeline zone, which is placed inside of the thermal shield. With the expected design and optimized solution, a maximum difference in temperature between inlet and outlet water (∆T w) of 90 °C and a system performance (e) around 77 % could be obtained within operation constraints.

Mujun Long - One of the best experts on this subject based on the ideXlab platform.

  • study on mitigating center macro segregation during steel Continuous Casting Process
    Steel Research International, 2011
    Co-Authors: Mujun Long, Dengfu Chen
    Abstract:

    In the current paper, Methods of enlarging the area for the distribution of segregation solutes were introduced to mitigate center macro-segregation in steel billets and steel slabs during Continuous Casting Process, which cost less and have significant effect. The location of center macro-segregation is relative to the shape of liquid-core at the solidification end during steel Continuous Casting. A method of dissymmetrical cooling on different surfaces, by which the area for the precipitation of segregation solutes was enlarged, was introduced to mitigate the center macro-segregation in billets during Continuous Casting Process. Method of optimizing the uniformity of solidified shell in the transverse direction was introduced to mitigate the center macro-segregation in steel slabs. The uniform cooling intensity along the transverse direction guaranteed a regular solidification end in the Continuous Casting slab, which aided in the effective application of dynamic soft reduction technology. A relevant 2-D heat transfer model was developed for the optimization of uniform solidification. The current method was applied to the industrial slab Continuous Casting using the heat transfer model. The results indicated a better industrial slab quality with much less center macro-segregation after the use of the method.

  • Study on Mitigating Center Macro‐Segregation During Steel Continuous Casting Process
    Steel Research International, 2011
    Co-Authors: Mujun Long, Dengfu Chen
    Abstract:

    In the current paper, Methods of enlarging the area for the distribution of segregation solutes were introduced to mitigate center macro-segregation in steel billets and steel slabs during Continuous Casting Process, which cost less and have significant effect. The location of center macro-segregation is relative to the shape of liquid-core at the solidification end during steel Continuous Casting. A method of dissymmetrical cooling on different surfaces, by which the area for the precipitation of segregation solutes was enlarged, was introduced to mitigate the center macro-segregation in billets during Continuous Casting Process. Method of optimizing the uniformity of solidified shell in the transverse direction was introduced to mitigate the center macro-segregation in steel slabs. The uniform cooling intensity along the transverse direction guaranteed a regular solidification end in the Continuous Casting slab, which aided in the effective application of dynamic soft reduction technology. A relevant 2-D heat transfer model was developed for the optimization of uniform solidification. The current method was applied to the industrial slab Continuous Casting using the heat transfer model. The results indicated a better industrial slab quality with much less center macro-segregation after the use of the method.

  • A Simple Model to Calculate Dendrite Growth Rate during Steel Continuous Casting Process
    Isij International, 2010
    Co-Authors: Mujun Long, Lifeng Zhang
    Abstract:

    In the current paper, the relationship between the Casting speed and the dendrite growth during steel Continuous Casting Process was studied; and a simple mathematical model to calculate the primary dendrite growth rate according to the Casting speed was developed. The model was used to predict the distribution of the dendrite growth rate along width direction and Casting direction during a Continuous Casting Process, indicating a dendrite growth rate of 0.1–3.0 mm/s, which is much higher than that in regular ingot Casting. The dendrite growth rate fluctuates along Casting direction because of the different cooling intensity in each zone of the Continuous caster; and the distribution of the dendrite growth rate along width direction was non-uniform due to the uneven transverse distribution of cooling intensity. The predicted results agree well with the measurements.

  • Development and Application of Dynamic Soft-reduction Control Model to Slab Continuous Casting Process
    Isij International, 2010
    Co-Authors: Zhiwei Han, Dengfu Chen, Ke Feng, Mujun Long
    Abstract:

    Based on the heat transfer and solidification model for simulating two-phase zones by coupling multiple alloys during slab Continuous Casting Process and the soft-reduction theory, the dynamic control model for soft-reduction on slab Continuous Casting was developed. The control model consists of three major functional modules: real-time tracking simulation, cooling water control and dynamic soft-reduction control. In order to keep stable Continuous Casting and produce high quality slabs during slab Continuous Casting Process, many significant operating parameters such as the cooling water at the secondary cooling zone and the roll gap at sector section can be dynamically adjusted according to the reasonable metallurgical criterion and on-line feedback information. Industrially, the model has been successfully applied. Industrial practices indicate that the control model with reasonable algorithms and accurate simulation has a certain theoretical value and industrial practicality.

Dengfu Chen - One of the best experts on this subject based on the ideXlab platform.

  • study on mitigating center macro segregation during steel Continuous Casting Process
    Steel Research International, 2011
    Co-Authors: Mujun Long, Dengfu Chen
    Abstract:

    In the current paper, Methods of enlarging the area for the distribution of segregation solutes were introduced to mitigate center macro-segregation in steel billets and steel slabs during Continuous Casting Process, which cost less and have significant effect. The location of center macro-segregation is relative to the shape of liquid-core at the solidification end during steel Continuous Casting. A method of dissymmetrical cooling on different surfaces, by which the area for the precipitation of segregation solutes was enlarged, was introduced to mitigate the center macro-segregation in billets during Continuous Casting Process. Method of optimizing the uniformity of solidified shell in the transverse direction was introduced to mitigate the center macro-segregation in steel slabs. The uniform cooling intensity along the transverse direction guaranteed a regular solidification end in the Continuous Casting slab, which aided in the effective application of dynamic soft reduction technology. A relevant 2-D heat transfer model was developed for the optimization of uniform solidification. The current method was applied to the industrial slab Continuous Casting using the heat transfer model. The results indicated a better industrial slab quality with much less center macro-segregation after the use of the method.

  • Study on Mitigating Center Macro‐Segregation During Steel Continuous Casting Process
    Steel Research International, 2011
    Co-Authors: Mujun Long, Dengfu Chen
    Abstract:

    In the current paper, Methods of enlarging the area for the distribution of segregation solutes were introduced to mitigate center macro-segregation in steel billets and steel slabs during Continuous Casting Process, which cost less and have significant effect. The location of center macro-segregation is relative to the shape of liquid-core at the solidification end during steel Continuous Casting. A method of dissymmetrical cooling on different surfaces, by which the area for the precipitation of segregation solutes was enlarged, was introduced to mitigate the center macro-segregation in billets during Continuous Casting Process. Method of optimizing the uniformity of solidified shell in the transverse direction was introduced to mitigate the center macro-segregation in steel slabs. The uniform cooling intensity along the transverse direction guaranteed a regular solidification end in the Continuous Casting slab, which aided in the effective application of dynamic soft reduction technology. A relevant 2-D heat transfer model was developed for the optimization of uniform solidification. The current method was applied to the industrial slab Continuous Casting using the heat transfer model. The results indicated a better industrial slab quality with much less center macro-segregation after the use of the method.

  • Development and Application of Dynamic Soft-reduction Control Model to Slab Continuous Casting Process
    Isij International, 2010
    Co-Authors: Zhiwei Han, Dengfu Chen, Ke Feng, Mujun Long
    Abstract:

    Based on the heat transfer and solidification model for simulating two-phase zones by coupling multiple alloys during slab Continuous Casting Process and the soft-reduction theory, the dynamic control model for soft-reduction on slab Continuous Casting was developed. The control model consists of three major functional modules: real-time tracking simulation, cooling water control and dynamic soft-reduction control. In order to keep stable Continuous Casting and produce high quality slabs during slab Continuous Casting Process, many significant operating parameters such as the cooling water at the secondary cooling zone and the roll gap at sector section can be dynamically adjusted according to the reasonable metallurgical criterion and on-line feedback information. Industrially, the model has been successfully applied. Industrial practices indicate that the control model with reasonable algorithms and accurate simulation has a certain theoretical value and industrial practicality.