Premium
Thermosiphon Reboilers with Enhanced Tubes
Author(s) -
Lavrikov Alexandr V.,
Hammerschmidt Jochen,
KuzmaKichta Yuri A.,
Scholl Stephan
Publication year - 2015
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201400056
Subject(s) - reboiler , thermosiphon , heat exchanger , heat transfer , materials science , tube (container) , thermodynamics , natural circulation , coating , heat transfer coefficient , mechanics , chemical engineering , composite material , engineering , physics
Reliable heat exchangers capable of transferring heat at low driving temperature differences are key to energy efficient processes. In this paper, heat transfer and fluid dynamics of hydrophobic nanoparticle (HBNP) coated tubes are investigated in a steam‐heated single‐tube thermosiphon reboiler and compared to experimental results of standard stainless steel tubes. In comparison to the bare tube, the coated tube showed higher heat transfer and circulation rates as well as an improved stability of the circulating flow. The stability of the coating was verified in a long‐term stability test.