Detail publikace
Experimental thermal-hydraulic performances of heat exchangers with different baffle patterns
Chen J, Li N, Ding Y, Klemeš J.J. Varbanov P.S. Wang Q. Zeng M.
Anglický název
Experimental thermal-hydraulic performances of heat exchangers with different baffle patterns
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
In the present work, the effect of the baffle pattern on the heat transfer and fluid flow characteristics of shell-and-tube heat exchangers are experimentally investigated, including tri-flower baffle, pore plate baffle, rod baffle, segmental & pore baffle and segmental baffle. In order to compare the hydrodynamics and heat transfer characteristics of the five heat exchangers, a water-water heat transfer experiment system is built. Based on the experimental data, and at the same flow rate, comparison with segmental baffle, the h(s) of tri-flower baffle and pore plate baffle augment 33.8% and 17.7%. The pressure drop of the rod baffle, tri-flower baffle and segmental & pore baffle decrease are 70.1%, 19.5% and 31.1% lower than that of the segmental baffle. The comprehensive performances h(s)/Delta p of the rod baffle, tri-flower baffle and pore plate baffle are all superior to that of the segmental baffle. Finally, the experimental correlative formula is raised for the four heat exchangers, and an optimal design scheme for shell side heat transfer enhancement is proposed.
Anglický abstrakt
In the present work, the effect of the baffle pattern on the heat transfer and fluid flow characteristics of shell-and-tube heat exchangers are experimentally investigated, including tri-flower baffle, pore plate baffle, rod baffle, segmental & pore baffle and segmental baffle. In order to compare the hydrodynamics and heat transfer characteristics of the five heat exchangers, a water-water heat transfer experiment system is built. Based on the experimental data, and at the same flow rate, comparison with segmental baffle, the h(s) of tri-flower baffle and pore plate baffle augment 33.8% and 17.7%. The pressure drop of the rod baffle, tri-flower baffle and segmental & pore baffle decrease are 70.1%, 19.5% and 31.1% lower than that of the segmental baffle. The comprehensive performances h(s)/Delta p of the rod baffle, tri-flower baffle and pore plate baffle are all superior to that of the segmental baffle. Finally, the experimental correlative formula is raised for the four heat exchangers, and an optimal design scheme for shell side heat transfer enhancement is proposed.
Klíčová slova anglicky
Shell-and-tube heat exchanger; Baffle pattern; Thermodynamic performance; Experimental investigation; Baffle optimization; SHELL-SIDE PERFORMANCE; FLOW
Vydáno
15.08.2020
Nakladatel
Elsevier Ltd
ISSN
0360-5442
Číslo
205
Strany od–do
118066–118066
Počet stran
8
BIBTEX
@article{BUT165072,
author="Jiří {Klemeš} and Petar Sabev {Varbanov},
title="Experimental thermal-hydraulic performances of heat exchangers with different baffle patterns ",
year="2020",
number="205",
month="August",
pages="118066--118066",
publisher="Elsevier Ltd",
issn="0360-5442"
}