Impact of liquid coolant subcooling on boiling heat transfer and dryout in heat-generating porous media

Chakravarty, Ajit K.; Ghosh, Koushik; Sen, Swarnendu; Mukhopadhyay, Achintya

doi:10.1016/j.tsep.2022.101251

Cited by 1 publication

(1 citation statement)

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“…Inside the inner fluid zone (Figure 12(b) and (g)), it is observed that the initial stages have low temperature profiles in the presence of metal foams and it increases toward the outlet because of the heat transfer characteristics. Hence, the proposed model with porous bed shows the emanated potential for the instant heat transfer like the findings presented by Chakravarty et al 20…”

Section: Static Temperature Contours Of the Dump Diffuser Modelsupporting

confidence: 78%

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: Static Temperature Contours Of the Dump Diffuser Modelsupporting

confidence: 78%