Investigation on the thermal performance of spiral wound heat exchanger for the superfluid helium cryogenic system

Zhang, Jun; Song, Chen-chen; Niu, Xiaofei; Wang, Xianjin; Feng, Bin; Bi, Hailin

doi:10.1016/j.cryogenics.2021.103264

Cited by 8 publications

(1 citation statement)

References 19 publications

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“…Earlier, Zhang et al investigated the impact of fin configuration on the thermal behavior of a spiral wound heat exchanger, which is important for its structural design. 9 This research offers a trustworthy technique for the structural layout and thermal performance analysis of a spiral wound heat exchanger with helium. The results are observed mostly in the temperature range of 2-4.2 K that is important one for the design and testing of a helium superfluid based cryogenic system.…”

Section: Introductionmentioning

confidence: 99%

Exhaust condensation through porous bed in the primary zone of novel dump diffuser geometry

Prawin

Rose

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The work presented in this article deals with the reduction of air pollution generated by automobiles. It is accomplished through the process of condensation using novel techniques such as utilization of porous metal foams. A modified geometry dump diffuser is used to facilitate flow of exhaust gases slowly around copper coils thereby condensing them. The condensed gases can be collected and stored in a chamber and then can be carried to industries for recycling. This article involves design of the modified geometry dump diffuser using CATIA V5 tool. The computational fluid dynamics (CFD) analysis of the model is carried out using the ANSYS Fluent software. The inlet parameters are obtained as per the exhaust characteristics of a typical 0.8 l 3-cylinder Gasoline Engine. The results are presented for modified geometry dump diffuser models with and without porous bed. Porous bed module is used to simulate the presence of metal foams in the primary zone and inside the inner fluid zone. The results are presented. The results show that the modified geometry dump diffuser model with porous bed can cool the exhaust gases to their condensation temperature. This model can be employed in automobiles to reduce air pollution.

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Section: Introductionmentioning

confidence: 99%