TY - JOUR
T1 - Numerical investigation on combined multiple shell-pass shell-and-tube heat exchanger with continuous helical baffles
AU - Wang, Qiuwang
AU - Chen, Qiuyang
AU - Chen, Guidong
AU - Zeng, Min
PY - 2009/2
Y1 - 2009/2
N2 - A combined multiple shell-pass shell-and-tube heat exchanger (CMSP-STHX) with continuous helical baffles in outer shell pass has been invented to improve the heat transfer performance and simplify the manufacture process. The CMSP-STHX is compared with the conventional shell-and-tube heat exchanger with segmental baffles (SG-STHX) by means of computational fluid dynamics (CFD) method. The numerical results show that, under the same mass flow rate M and overall heat transfer rate Qm, the average overall pressure drop Δpm of the CMSP-STHX is lower than that of conventional SG-STHX by 13% on average. Under the same overall pressure drop Δpm in the shell side, the overall heat transfer rate Qm of the CMSP-STHX is nearly 5.6% higher than that of SG-STHX and the mass flow rate in the CMSP-STHX is about 6.6% higher than that in the SG-STHX. The CMSP-STHX might be used to replace the SG-STHX in industrial applications to save energy, reduce cost and prolong the service life.
AB - A combined multiple shell-pass shell-and-tube heat exchanger (CMSP-STHX) with continuous helical baffles in outer shell pass has been invented to improve the heat transfer performance and simplify the manufacture process. The CMSP-STHX is compared with the conventional shell-and-tube heat exchanger with segmental baffles (SG-STHX) by means of computational fluid dynamics (CFD) method. The numerical results show that, under the same mass flow rate M and overall heat transfer rate Qm, the average overall pressure drop Δpm of the CMSP-STHX is lower than that of conventional SG-STHX by 13% on average. Under the same overall pressure drop Δpm in the shell side, the overall heat transfer rate Qm of the CMSP-STHX is nearly 5.6% higher than that of SG-STHX and the mass flow rate in the CMSP-STHX is about 6.6% higher than that in the SG-STHX. The CMSP-STHX might be used to replace the SG-STHX in industrial applications to save energy, reduce cost and prolong the service life.
KW - Combined multiple shell-pass shell-and-tube heat exchanger (CMSP-STHX)
KW - Continuous helical baffle
KW - Segmental baffled shell-and-tube heat exchanger (SG-STHX)
UR - https://www.scopus.com/pages/publications/58149382438
U2 - 10.1016/j.ijheatmasstransfer.2008.09.009
DO - 10.1016/j.ijheatmasstransfer.2008.09.009
M3 - 文章
AN - SCOPUS:58149382438
SN - 0017-9310
VL - 52
SP - 1214
EP - 1222
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 5-6
ER -