An experimental investigation on heat transfer characteristics of air and CO2 in microtubes

Chia Wei Chen, Ting Yu Lin, Chien Yuh Yang, Satish G. Kandlikar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Scopus citations

Abstract

Several researches dealing with the single-phase forced convection heat transfer inside micro channels have been published in the past decades. The performance of liquid flow has been proved that agree with the conventional correlations very well (Yang and Lin [2007]). However, owing to the low heat transfer coefficient of gaseous flow, it is more difficult to eliminate the effects of thermal shunt and heat loss than water flow while measuring its heat transfer performance. This study provides an experimental investigation on forced convective heat transfer performance of air and gaseous carbon dioxide flowing through two microtube with inner diameter of 920 μm. A non-contacted liquid crystal thermography (LCT) temperature measurement method that proposed by Lin and Yang [2007] was used in this study to measure the surface temperature of microtube. The test results show that the conventional heat transfer correlations for laminar and turbulent flow can be well applied for predicting the fully developed heat transfer performance in microtubes while taking account of the compressibility effect of high pressure gaseous flow in micro tubes. There is no significant difference between CO2 and air in both heat transfer and friction.

Original languageEnglish
Title of host publicationASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2011
Pages335-340
Number of pages6
DOIs
StatePublished - 2011
EventASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2011 - Edmonton, AB, Canada
Duration: 19 Jun 201122 Jun 2011

Publication series

NameASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2011
Volume1

Conference

ConferenceASME 2011 9th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM 2011
Country/TerritoryCanada
CityEdmonton, AB
Period19/06/1122/06/11

Fingerprint

Dive into the research topics of 'An experimental investigation on heat transfer characteristics of air and CO<sub>2</sub> in microtubes'. Together they form a unique fingerprint.

Cite this