SLM Additive Manufacturing of Oscillating Heat Pipe

Chen, Kuan-Lin; Luo, Kuan-Yu; Gupta, Pratik Prakash; Kang, Shung‐Wen

doi:10.3390/su15097538

Cited by 7 publications

(7 citation statements)

References 51 publications

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“…This study also investigated the impact of inter-channel spacing on thermal performance, revealing that reducing thermal interaction can enhance the oscillation effect, resulting in improved equivalent thermal conductivity. The experiments demonstrated higher equivalent thermal conductivity at low power with reduced thermal interaction [41].…”

Section: Introductionmentioning

confidence: 87%

“…Metal additive manufacturing (AM) with SUS316L material to create oscillating heat pipes was considered in recent studies [41]. Experiments on printing parameters and thermal performance were conducted.…”

Section: Introductionmentioning

confidence: 99%

“…Heat In order to describe the heat transfer, five elementary cells were considered in the heat transfer rate direction. For each cell, a heat transfer equation was considered based on previous research experience [41,42], as follows:…”

mentioning

confidence: 99%

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Study of Heat Recovery Equipment for Building Applications

Popescu,

Catalina

2023

Buildings

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Nowadays, heat exchangers find widespread use across various applications in different fields, particularly in the field of heat recovery. This paper provides a detailed explanation of a plate heat exchanger counter-flow model developed in Simulink/Matlab. Water was employed in simulations for both circuits, although the thermal properties of other fluids can be investigated by modifying them. The “Tanks in series” method was used for simulation purposes. The developed model enables users to explore the impact of various parameters on heat exchanger functionality, such as altering the number of plates, the material or thickness of the plates, and the nature of thermal agents (gaseous or liquid). These models play a crucial role not only in simulating and sizing heat exchangers but also in achieving parametric optimization. Parameter variations can be employed to examine the operation of existing equipment under conditions different from their design specifications. The Simulink/Matlab proposed model, featuring a variable number of finite volumes to ensure high accuracy, was compared to the classical design method for plate heat exchangers. The results revealed good accuracy, with relative errors for heat transfer rate remaining below 2.6%. This research also considered the study of the number of finite volumes necessary for achieving accurate results. For the 40 finite volumes model, the relative error for heat transfer rate is less than 10%. Dividing the mesh into 50 finite volumes along the fluid flow direction resulted in relative errors ranging from 1.6% to 1.7%, indicating that a finer mesh was not necessary. To validate the conceived model, experimental data from the literature were compared. The relative errors for heat transfer rate between the Matlab/Simulink model’s results and experimental data ranged from 1.58% to 11.92%, demonstrating a strong agreement between the conceived model and the experimental values.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Study of Heat Recovery Equipment for Building Applications

Popescu,

Catalina

2023

Buildings

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“…Thompson et al [19] employed laser selective melting to create a compact plate oscillating heat pipe with a Ti-6Al-4 V shell and a closed-loop, circular microchannel comprising four interconnected layers. Experimental results demonstrated an effective thermal conductivity of ≈110 W m K −1 at 50 W power, representing a 400-500% increase compared to solid Ti-6Al-4 V. Thompson et al created a compact plate oscillating heat pipe with improved effective thermal conductivity using laser selective melting (Figure 9d), while Chen et al [120] developed oscillating heat pipes using metal additive manufacturing, optimizing printing parameters for better thermal performance (Figure 9e). [118] Copyright 2017, Elsevier.…”

Section: Heat Pipes Coolingmentioning

confidence: 99%

Advanced Design and Manufacturing Approaches for Structures with Enhanced Thermal Management Performance: A Review

Sun,

Zhi,

Zhou

et al. 2024

Adv Materials Technologies

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Advanced design methods and manufacturing techniques are crucial for developing thermal management structures, essential for the efficient operation of complex equipment. This study provides a thorough review of design methodologies and advanced manufacturing technologies for thermal management materials and structures. It identifies key challenges and critically evaluates the integration of innovative design principles, such as biomimicry and topology optimization, into thermal management solutions. The analysis delves into the evolution of design theories and preparation techniques, with a specific focus on modern needs and research directions, particularly highlighting components fabricated using additive manufacturing and their effectiveness in meeting advanced thermal management requirements. Current research focuses on designing structures tailored to various cooling methods, including air‐cooling, liquid‐cooling, heat exchanger cooling, and heat pipe cooling. These designs utilize phase change materials, electrocaloric cooling, and thermoelectric cooling materials to achieve optimal thermal management performance. Additionally, emerging innovations like solid‐liquid mixed heat transfer and the elastocaloric effect are garnering increased interest. Enhancing the design of thermal management structures through rigorous numerical simulations is critical for improving engineering applicability. However, overcoming challenges related to the commercialization and practical utilization of these advanced structures remains a pressing need.

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“…However, the design of the actual cooling system and the geometric structure of the served device often result in a complex spatial shape for heat pipes. Additive manufacturing technology provides new possibilities for manufacturing many complex structures [1][2][3][4][5][6]. The production of heat pipes using additivie manufacturing has garnered considerable attention due to its advantages in processing complex and highly customizable parts, integrated manufacturing with structural components, lightweight design, and high processing efficiency [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Water Jet Polisher Using Soft Abrasives for Small Complex-Structure Heat Pipes of Aluminum Alloy Produced Using Additive Manufacturing

Zhang,

Feng

et al. 2024

Materials

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It is a challenge to polish the interior surface of a small bent pipe with complex structures and sizes less than 0.5 mm. This is because of the fact that traditional polishing methods could destroy, block, or break the small complex structures. For a small bent pipe made of aluminum alloy produced using additive manufacturing, the defects, such as adhered powders and spatters, are easy to jam the pipe without polishing, possibly resulting in catastrophic failure for aerospace applications. To overcome this challenge, a novel water jet polisher was developed using soft polymethyl methacrylate (PMMA) abrasives. After polishing a specific area, the adhered powders on the interior surface were reduced from over 140 to 2, 3, and 6 by the soft abrasives with mesh sizes of 200, 400, and 600, respectively. The surface roughness Sa was decreased from 3.41 to 0.92 μm after polishing using PMMA abrasives with a mesh size of 200. In comparison, silica abrasives were also employed to polish the small bent pipes, leading to the bent part of pipes breaking. However, this kind of failure was absent when using soft abrasives. Computational fluid dynamics calculations elucidate that a peak erosion rate of silica abrasives for a bent pipe with a turn angle of 30° is 2.18 kg/(m2·s), which is 17 times that of soft abrasives. This is why the small bent pipe was broken using silica abrasives, whereas it remained intact when polished with soft abrasives. In addition, water jet polishing has a lower erosion rate, a relatively smooth erosion curve, and less erosion energy, leaving the bent parts intact. The developed soft abrasive water jet polisher and the findings of this study suggest new possibilities for cleaning the adhered powders and spatters and polishing the interior surface of small bent pipes with complex structures.

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SLM Additive Manufacturing of Oscillating Heat Pipe

Cited by 7 publications

References 51 publications

Study of Heat Recovery Equipment for Building Applications

Study of Heat Recovery Equipment for Building Applications

Advanced Design and Manufacturing Approaches for Structures with Enhanced Thermal Management Performance: A Review

Development of a Novel Water Jet Polisher Using Soft Abrasives for Small Complex-Structure Heat Pipes of Aluminum Alloy Produced Using Additive Manufacturing

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