Design study for performance improvement of a hybrid pico pelton turbine and its additive manufacturing using a laser powder bed fusion method

Auyeskhan, Ulanbek; Lee, Tack; Park, Yujin; Kim, Namhun; Kim, Chung-Soo; Kim, Dong-Hyun

doi:10.1007/s12008-023-01396-4

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…This chapter provides the FE approach towards simulating displacement of bipolar plates via a commercial software-ANSYS Additive Print (AAP, V1.9.1) known as handson and user-friendly software that simulates the L-PBF printing job by incorporating mechanical properties of materials [26]. The L-PBF-build job is designed to be simulated in a layer-wise manner of voxel elements instead of meshes which accesses faster exploration of results within AAP.…”

Section: Simulation Approachmentioning

confidence: 99%

Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion

Lee,

Auyeskhan,

Kim

et al. 2023

Metals

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In this study, the feasibility of commercially pure (CP)-Ti bipolar plates for fuel cells were assessed by designing, manufacturing, and evaluating thin plates fabricated through the laser powder bed fusion (L-PBF) technique. The width, height, and thickness of thin CP-Ti plates were carefully considered in its design to ensure comprehensive evaluation. The maximum displacement was measured through blue light scanning in accordance with the building direction. The finite element model and experimental results showed that the building layer per volume has a linear relationship with the maximum displacement and maximum residual tensile stress along the building direction. Thin plates with a high aspect ratio (198 × 53 × 1.5 mm) had the lowest maximum displacement (0.205 mm) when building in the height direction and had a high correlation coefficient with the finite element model (0.936). Proper aspect ratio design and building strategy enable highly accurate manufacturing of CP-Ti thin plates for fuel cell systems.

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Section: Simulation Approachmentioning

confidence: 99%

Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion

Lee,

Auyeskhan,

Kim

et al. 2023

Metals

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Digital Dimensions: Unveiling the Potential of E-Design and Virtual Prototyping

Yadav,

Chirade,

Banerjee

et al. 2023

E3S Web Conf.

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The design and prototyping processes have undergone significant transformation due to the emergence of E-Design and Virtual Prototyping in a time marked by remarkable technological progress. This study examines the significant influence of digital aspects on several industries, providing a comprehensive analysis of their potential for transformation. E-Design comprises a wide range of digital tools and processes that aid in the inception, development, and refining of design ideas. Through the utilisation of computer-aided design (CAD), virtual reality (VR), and augmented reality (AR), E-Design has emerged as a platform that facilitates novel opportunities for creative expression and collaborative endeavours. This technology empowers designers and engineers to surpass the limitations imposed by geographical distances, thereby promoting international collaboration and facilitating the emergence of interdisciplinary creativity. In contrast, Virtual Prototyping provides a dynamic platform that enables the iterative enhancement of prototypes, free from the restrictions imposed by physical constraints. By employing intricate simulations and digital twinning techniques, this approach expedites the cycle of product development, diminishes expenses, and mitigates the adverse effects on the environment. The rise of Virtual Prototyping has facilitated equal access to prototyping, hence enabling startups and small enterprises to engage in the process. This study examines case studies in several industries, including automotive, aerospace, architecture, and healthcare, to demonstrate the transformative impact of E-Design and Virtual Prototyping on product development and project lifecycles. This study investigates the obstacles and ethical implications linked to E-Design and Virtual Prototyping, encompassing concerns regarding data security, intellectual property rights, and the digital divide. This highlights the necessity of practising responsible innovation and implementing ethical principles in order to effectively navigate this revolutionary environment.

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Towards Sustainability in Hydraulic Machinery Manufacturing by 3D Printing

Remache,

Pérez-Sánchez,

Hidalgo

et al. 2024

Processes

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Material wear, maintenance costs, performance, efficiency, and corrosion are some of the issues that turbomachinery impellers may encounter. The optimization of impellers through additive manufacturing (AM) has been the focus of extensive research, aiming to address these challenges in turbine, pump, compressor, fan, and mixer components. This research aims to identify and analyze the main techniques currently being developed to tackle several of these issues. Evaluating the published research, the methodology highlights various AM techniques applied to impellers and related components, as well as the diverse materials used in functional system elements. The analysis revealed that the most commonly used additive manufacturing technologies for the production of turbomachinery components are FDM, with a 22% application rate, and powder bed fusion technology, accounting for 35%, utilized for high-complexity parts and even superalloys. Although more expensive, these technologies employ materials with superior resistance capabilities, surpass the limitations of conventional machining, optimize manufacturing times, and allow for the fine-tuning of multiple parameters. In terms of wear and corrosion resistance, materials such as Inconel 718 exhibited a loss of less than 0.1 mpy (mils per year) in highly corrosive environments, representing a significant improvement over traditional materials.

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Design study for performance improvement of a hybrid pico pelton turbine and its additive manufacturing using a laser powder bed fusion method

Cited by 3 publications

References 26 publications

Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion

Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion

Digital Dimensions: Unveiling the Potential of E-Design and Virtual Prototyping

Towards Sustainability in Hydraulic Machinery Manufacturing by 3D Printing

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