Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Investigation on the thermal-hydraulic performance in a PCHE with airfoil fins for supercritical LNG near the pseudo-critical temperature under the rolling condition

Tang, Linghong LU ; Cao, Zhen LU and Pan, Jie LU (2020) In Applied Thermal Engineering 175.
Abstract

In this study, thermal and hydraulic performance of supercritical liquefied natural gas (LNG) is numerically studied in a printed circuit heat exchanger (PCHE) with airfoil fins under a rolling condition. Effects of operating pressures and rolling parameters are investigated. Results indicate that the PCHE has better thermal performance but worse hydraulic performance at a lower pressure condition. The instantaneous Nusselt numbers and the instantaneous Darcy friction factors present quasi-sine patterns against time, with a period same as the rolling period. The rolling condition gives larger time-averaged Nusselt numbers and Darcy friction factors, compared with the static condition, and the thermal and hydraulic performance increases... (More)

In this study, thermal and hydraulic performance of supercritical liquefied natural gas (LNG) is numerically studied in a printed circuit heat exchanger (PCHE) with airfoil fins under a rolling condition. Effects of operating pressures and rolling parameters are investigated. Results indicate that the PCHE has better thermal performance but worse hydraulic performance at a lower pressure condition. The instantaneous Nusselt numbers and the instantaneous Darcy friction factors present quasi-sine patterns against time, with a period same as the rolling period. The rolling condition gives larger time-averaged Nusselt numbers and Darcy friction factors, compared with the static condition, and the thermal and hydraulic performance increases with increasing rolling amplitude and rolling frequency. However, the rolling amplitude has a prevailing effect on the performance, in comparison to the rolling frequency.

(Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Airfoil, Printed circuit heat exchanger, Pseudo-critical temperature, Rolling condition, Thermal and hydraulic performance
in
Applied Thermal Engineering
volume
175
article number
115404
publisher
Elsevier
external identifiers
  • scopus:85084143876
ISSN
1359-4311
DOI
10.1016/j.applthermaleng.2020.115404
language
English
LU publication?
yes
id
61bd1e2a-97a2-44c3-adba-35e6a6f04199
date added to LUP
2021-01-12 12:56:00
date last changed
2023-11-20 20:07:25
@article{61bd1e2a-97a2-44c3-adba-35e6a6f04199,
  abstract     = {{<p>In this study, thermal and hydraulic performance of supercritical liquefied natural gas (LNG) is numerically studied in a printed circuit heat exchanger (PCHE) with airfoil fins under a rolling condition. Effects of operating pressures and rolling parameters are investigated. Results indicate that the PCHE has better thermal performance but worse hydraulic performance at a lower pressure condition. The instantaneous Nusselt numbers and the instantaneous Darcy friction factors present quasi-sine patterns against time, with a period same as the rolling period. The rolling condition gives larger time-averaged Nusselt numbers and Darcy friction factors, compared with the static condition, and the thermal and hydraulic performance increases with increasing rolling amplitude and rolling frequency. However, the rolling amplitude has a prevailing effect on the performance, in comparison to the rolling frequency.</p>}},
  author       = {{Tang, Linghong and Cao, Zhen and Pan, Jie}},
  issn         = {{1359-4311}},
  keywords     = {{Airfoil; Printed circuit heat exchanger; Pseudo-critical temperature; Rolling condition; Thermal and hydraulic performance}},
  language     = {{eng}},
  month        = {{07}},
  publisher    = {{Elsevier}},
  series       = {{Applied Thermal Engineering}},
  title        = {{Investigation on the thermal-hydraulic performance in a PCHE with airfoil fins for supercritical LNG near the pseudo-critical temperature under the rolling condition}},
  url          = {{http://dx.doi.org/10.1016/j.applthermaleng.2020.115404}},
  doi          = {{10.1016/j.applthermaleng.2020.115404}},
  volume       = {{175}},
  year         = {{2020}},
}