Process Manufacture Rotor Radial Turbo-expander for Small Scale Organic Rankine Cycles Using Selective Laser Melting Machine

Arifin, Maulana; Wahono, Bambang; Junianto, Endro; Pasek, Ari Darmawan

doi:10.1016/j.egypro.2015.03.260

Cited by 15 publications

(5 citation statements)

References 7 publications

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“…The use of AM to rotor and impeller fabrications is no exception and has attracted the attention of many studies. Selective laser melting (SLM) [102,103], electron beam melting (EBM) [104,105], stereolithography (SLA), fusion deposit modelling (FDM) and MultiJet printing technique (MJP) are the AM methods which have been used for rotor and impeller fabrications.…”

Section: Additive Manufacturing (Am) In Fabrication Of Impellersmentioning

confidence: 99%

Polymer Materials in Additive Manufacturing: Modelling and Simulation

2023

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Section: Additive Manufacturing (Am) In Fabrication Of Impellersmentioning

confidence: 99%

Polymer Materials in Additive Manufacturing: Modelling and Simulation

2023

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“…The use of AM to rotor and impeller fabrications is no exception and has attracted the attention of many studies. Selective laser melting (SLM) [ 102 , 103 ], electron beam melting (EBM) [ 104 , 105 ], stereolithography (SLA), fusion deposit modelling (FDM) and MultiJet printing technique (MJP) are the AM methods which have been used for rotor and impeller fabrications.…”

Section: Manufacturing Processmentioning

confidence: 99%

Toward Polymeric and Polymer Composites Impeller Fabrication

et al. 2021

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Impellers are referred to as a core component of turbomachinery. The use of impellers in various applications is considered an integral part of the industry. So, increased performance and the optimization of impellers have been the center of attention of a lot of studies. In this regard, studies have been focused on the improvement of the efficiency of rotary machines through aerodynamic optimization, using high-performance materials and suitable manufacturing processes. As such, the use of polymers and polymer composites due to their lower weight when compared to metals has been the focus of studies. On the other hand, methods of the manufacturing process for polymer and polymer composite impellers such as conventional impeller manufacturing, injection molding and additive manufacturing can offer higher economic efficiency than similar metal parts. In this study, polymeric and polymer composites impellers are discussed and conclusions are drawn according to the manufacturing methods. Studies have shown promising results for the replacement of polymers and polymer composites instead of metals with respect to a suitable temperature range. In general, polymers showed a good ability to fabricate the impellers, however in more difficult working conditions considering the need for a substance with higher physical and mechanical properties necessitates the use of composite polymers. However, in some applications, the use of these materials needs further research and development.

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“…This cooling structure is complicated and extremely difficult to manufacture. With the development of additive manufacture (AM) technology in recent years, hollow inner-cooled radial flow turbines can be manufactured, [7][8][9] but the cost is still high, and more importantly, the hollow structures bring severe challenges to the reliability of turbine rotor under the condition of high alternating rotating speed.…”

Section: Introductionmentioning

confidence: 99%

Effect of jet flow on cooling performance and thermal stress of a radial turbine back disc

Zhu

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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In view of the development status of high-reliability and low-cost cooling technology for radial turbine of micro-gas turbine or vehicle turbocharger, the impingement cooling technology of the radial turbine back disc was proposed, and the improvement of the cooling efficiency and thermal stress of the turbine back disc was numerically simulated. The results show that the impingement cooling technology can greatly improve the cooling efficiency of the turbine back disc and reduce the stress level. When the relative cooling flow is 1.0%–3.0%, the average cooling efficiency of the lower part of the turbine back disc is increased by 258%–486% compared with no cooling, which can reduce the thermal stress at the fillet of the back disc by 140–216 MPa. Both the average cooling efficiency and the fillet stress of the back disc increase slightly as the relative position of the jet hole moves outward. When the relative cooling flow is controlled within 2.0%, the effect of this cooling technology on the performance of the turbine can be ignored.

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Process Manufacture Rotor Radial Turbo-expander for Small Scale Organic Rankine Cycles Using Selective Laser Melting Machine

Cited by 15 publications

References 7 publications

Polymer Materials in Additive Manufacturing: Modelling and Simulation

Polymer Materials in Additive Manufacturing: Modelling and Simulation

Toward Polymeric and Polymer Composites Impeller Fabrication

Effect of jet flow on cooling performance and thermal stress of a radial turbine back disc

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