Numerical investigation of conjugated heat transfer mechanisms of supercritical hydrogen-helium in PCHE channels
(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.
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- author
- Wang, Wei LU ; Ding, Liang ; Niu, Mengke ; Li, Bingxi ; Shuai, Yong and Sunden, Bengt LU
- organization
- publishing date
- 2024
- 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}}, }