An array of micro-channels in parallel connected by Z-manifold, under consideration for the cooling of MW-class gyrotron cavities for fusion applications, is analyzed here. The micro-channels should allow the removal of a very non-uniform heat load, which can reach a peak up to 25 MW/m2. The adjoint topology optimization method is applied to the manifold regions. In the first case study, the micro-channels are not equally spaced but rather distributed and a uniform flow distribution in the micro-channels is targeted. In the second case study, a uniform micro-channels distribution is considered, but a flow rate distribution shaped to follow the heat load is targeted. The results suggests that a uniform flow repartition among the channels is more easy to achieve with respect to the non-uniform one, which would possibly require some additional modification of the channel geometry, on top of the shaping of the manifolds.

Comparative analysis of different strategies exploiting the adjoint topology optimization method for enhancing the performance of a cooling device equipped with micro-channels / Difonzo, R.; Cammi, A.; Laqua, H.; Savoldi, L.. - ELETTRONICO. - (2022), pp. 242-247. (Intervento presentato al convegno 16TH INTERNATIONAL CONFERENCE ON HEAT TRANSFER, FLUID MECHANICS AND THERMODYNAMICS (HEFAT-ATE 2022) tenutosi a Online nel 08-10 August 2022).

Comparative analysis of different strategies exploiting the adjoint topology optimization method for enhancing the performance of a cooling device equipped with micro-channels

Difonzo R.;Savoldi L.
2022

Abstract

An array of micro-channels in parallel connected by Z-manifold, under consideration for the cooling of MW-class gyrotron cavities for fusion applications, is analyzed here. The micro-channels should allow the removal of a very non-uniform heat load, which can reach a peak up to 25 MW/m2. The adjoint topology optimization method is applied to the manifold regions. In the first case study, the micro-channels are not equally spaced but rather distributed and a uniform flow distribution in the micro-channels is targeted. In the second case study, a uniform micro-channels distribution is considered, but a flow rate distribution shaped to follow the heat load is targeted. The results suggests that a uniform flow repartition among the channels is more easy to achieve with respect to the non-uniform one, which would possibly require some additional modification of the channel geometry, on top of the shaping of the manifolds.
2022
978-0-7972-1886-4
File in questo prodotto:
File Dimensione Formato  
HEFAT-ATE 2022 Proceedings_Difonzo_ComparativeAnalysis.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 1.28 MB
Formato Adobe PDF
1.28 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2972526