THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

Bowen Xu

,

Jinwang Li

,

Ningxiang Lu

,

Changji Wang

EXPERIMENTAL STUDY ON HEAT TRANSFER CHARACTERISTICS OF HIGH-TEMPERATURE HEAT PIPE

ABSTRACT
High-temperature heat pipes have broad application prospects in terms of thermal protection of hypersonic aircraft and cooling of space nuclear reactors. In this paper, a high-temperature heat pipe heat transfer performance experimental platform is built to study the heat transfer performance of high-temperature heat pipes at different inclination angles. A heat transfer network model of high-temperature heat pipes containing NCG is established to analyze the influence of NCG. The results show that as the inclination angle of the heat pipe increases, the start-up time of the heat pipe does not change. The heat transfer performance is best when the inclination angle is 30°. High-temperature heat pipes containing NCG will reduce the effective length of the high-temperature heat pipe, increase the thermal resistance, and reduce the heat transfer performance. The high-temperature heat pipe analysis model with NCG established in this paper can be used to predict the heat transfer performance of high-temperature heat pipes containing NCG.
KEYWORDS
High-temperature heat pipe, heat transfer, inclination angle, heating power, non-condensable gas
PAPER SUBMITTED: 2022-02-07
PAPER REVISED: 2022-08-21
PAPER ACCEPTED: 2022-08-22
PUBLISHED ONLINE: 2022-09-10
DOI REFERENCE: https://doi.org/10.2298/TSCI220207118X
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 6, PAGES [5227 - 5237]
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Experimental study on heat transfer characteristics of high-temperature heat pipe

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