Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Numerical investigation of conjugated heat transfer mechanisms of supercritical hydrogen-helium in PCHE channels

Wang, Wei LU ; Ding, Liang ; Niu, Mengke ; Li, Bingxi ; Shuai, Yong and Sunden, Bengt LU (2024) In Numerical Heat Transfer; Part A: Applications
Abstract

In this study, straight and z-shaped channel PCHEs are employed as hydrogen-helium heat exchangers in Synergistic Air-breathing Rocket Engine (SABER). Conjugated heat transfer mechanisms and characteristics of supercritical hydrogen-helium are studied numerically. The results of the straight channel indicate that when the mass flow rate of the cold (H2)/hot (He) side is 38/280 kg/(m2·s), a greater comprehensive performance of flow and heat transfer can be obtained. The influence of gravity on the hot side is significantly less than that on the cold side. The increase in plate thickness enhances heat transfer, while the effect of rib thickness is the opposite. As the bend angle decreases, the heat transfer... (More)

In this study, straight and z-shaped channel PCHEs are employed as hydrogen-helium heat exchangers in Synergistic Air-breathing Rocket Engine (SABER). Conjugated heat transfer mechanisms and characteristics of supercritical hydrogen-helium are studied numerically. The results of the straight channel indicate that when the mass flow rate of the cold (H2)/hot (He) side is 38/280 kg/(m2·s), a greater comprehensive performance of flow and heat transfer can be obtained. The influence of gravity on the hot side is significantly less than that on the cold side. The increase in plate thickness enhances heat transfer, while the effect of rib thickness is the opposite. As the bend angle decreases, the heat transfer coefficient of the z-shaped channel becomes higher. The heat transfer characteristics of the cold side vary more significantly with the bend angle than that of the hot side.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Conjugated heat transfer, flow and heat transfer mechanisms, printed circuit heat exchanger, supercritical hydrogen-helium
in
Numerical Heat Transfer; Part A: Applications
publisher
Taylor & Francis
external identifiers
  • scopus:85184461509
ISSN
1040-7782
DOI
10.1080/10407782.2024.2310877
language
English
LU publication?
yes
id
d8a4831a-cc60-49ca-a4dc-5fb5b2b4af1f
date added to LUP
2024-02-29 15:08:01
date last changed
2024-02-29 15:09:13
@article{d8a4831a-cc60-49ca-a4dc-5fb5b2b4af1f,
  abstract     = {{<p>In this study, straight and z-shaped channel PCHEs are employed as hydrogen-helium heat exchangers in Synergistic Air-breathing Rocket Engine (SABER). Conjugated heat transfer mechanisms and characteristics of supercritical hydrogen-helium are studied numerically. The results of the straight channel indicate that when the mass flow rate of the cold (H<sub>2</sub>)/hot (He) side is 38/280 kg/(m<sup>2</sup>·s), a greater comprehensive performance of flow and heat transfer can be obtained. The influence of gravity on the hot side is significantly less than that on the cold side. The increase in plate thickness enhances heat transfer, while the effect of rib thickness is the opposite. As the bend angle decreases, the heat transfer coefficient of the z-shaped channel becomes higher. The heat transfer characteristics of the cold side vary more significantly with the bend angle than that of the hot side.</p>}},
  author       = {{Wang, Wei and Ding, Liang and Niu, Mengke and Li, Bingxi and Shuai, Yong and Sunden, Bengt}},
  issn         = {{1040-7782}},
  keywords     = {{Conjugated heat transfer; flow and heat transfer mechanisms; printed circuit heat exchanger; supercritical hydrogen-helium}},
  language     = {{eng}},
  publisher    = {{Taylor & Francis}},
  series       = {{Numerical Heat Transfer; Part A: Applications}},
  title        = {{Numerical investigation of conjugated heat transfer mechanisms of supercritical hydrogen-helium in PCHE channels}},
  url          = {{http://dx.doi.org/10.1080/10407782.2024.2310877}},
  doi          = {{10.1080/10407782.2024.2310877}},
  year         = {{2024}},
}