Design and operation of a Tesla-type valve for pulsating heat pipes

S.F. de Vries; D. Florea; F.G.A. Homburg; A.J.H. Frijns

doi:10.1016/j.ijheatmasstransfer.2016.09.062

Design and operation of a Tesla-type valve for pulsating heat pipes

S.F. de Vries, D. Florea, F.G.A. Homburg, A.J.H. Frijns

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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A new Tesla-type valve is successfully designed for promoting circulation in a pulsating heat pipe (PHP) and improving the thermal resistance. Its functionality and diodicity is tested by laminar single-phase modelling and by steady two-phase flow experiments. The valve is symmetrically integrated in a single-turn PHP, which reduces variabilities to give a more thorough understanding of the behaviour in PHPs. Two transparent bottom-heated PHPs, one with and one without valves, are manufactured and the flow behaviour and thermal performance is studied. The valves produced a diodicity which lead to a difference in velocity of 25% for the different flow directions. Furthermore, a decrease of 14% in thermal resistance was observed due to the addition of the valves.

Originele taal-2	Engels
Pagina's (van-tot)	1-11
Aantal pagina's	11
Tijdschrift	International Journal of Heat and Mass Transfer
Volume	105
DOI's	https://doi.org/10.1016/j.ijheatmasstransfer.2016.09.062
Status	Gepubliceerd - 1 feb 2017

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10.1016/j.ijheatmasstransfer.2016.09.062

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abstract = "A new Tesla-type valve is successfully designed for promoting circulation in a pulsating heat pipe (PHP) and improving the thermal resistance. Its functionality and diodicity is tested by laminar single-phase modelling and by steady two-phase flow experiments. The valve is symmetrically integrated in a single-turn PHP, which reduces variabilities to give a more thorough understanding of the behaviour in PHPs. Two transparent bottom-heated PHPs, one with and one without valves, are manufactured and the flow behaviour and thermal performance is studied. The valves produced a diodicity which lead to a difference in velocity of 25% for the different flow directions. Furthermore, a decrease of 14% in thermal resistance was observed due to the addition of the valves.",

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