Novel Pressure Swirl Nozzle Design Enabled by Additive Manufacturing

Umbricht, Michael; Löffel, Kaspar; Huber, Marc; Lüscher, Patrick; Bochsler, Janine; Weiss, Daniel; Duda, Tom

doi:10.1007/978-3-030-54334-1_28

Cited by 1 publication

(1 citation statement)

References 11 publications

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“…However, the additively manufactured injector with 8 holes could create more stable combustion at the design point. Umbricht et al [96] compared two conventional pressure swirl nozzles with the novel AM nozzle and reported a 10% performance improvement at the higher pressure. Runyon et al [97] investigated the influence of surface roughness on the performance of additively manufactured swirlers of MGT combustors.…”

Section: Combustormentioning

confidence: 99%

Improving efficiency of micro gas turbine systems by integration of combustor and recuperator using additive manufacturing techniques

Sheykhpoor,

Darabkhani,

Awan

2023

Int J Adv Manuf Technol

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World energy consumption is rapidly increasing, and global rising patterns show a higher consumption increase in residential and commercial buildings. Combined heat and power (CHP) systems have been developed and commercialised to distribute and decentralise electricity generation for domestic applications to reduce energy consumption and gas emissions. The use of a micro gas turbine (MGT) shows a number of advantages over other CHP systems including smaller size, ease of operation, and competitive maintenance cost. The low efficiency of the current MGT units in the market combined with the urgent requirement for highly efficient and low-emission energy conversion systems are the motivations for the development of new MGTs using additive manufacturing (AM) techniques. In this study, the current metal-AM systems are reviewed, the development of the MGT combustor and heat exchanger is presented, and the challenges and opportunities toward manufacturing more efficient MGT for domestic applications are discussed. The integration of the combustor and recuperator of the hot section of a MGT is proposed to achieve up to 5% improvement in efficiency with a significant reduction in the weight and size of the system.

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Section: Combustormentioning

confidence: 99%