Heating of supercritical carbon dioxide in small channels

Saad A. Jajja, Jessa M. Sequeira, Brian M. Fronk

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Supercritical carbon dioxide (sCO2) is an environmentally friendly refrigerant used in a growing portfolio of HVAC&R products. Supercritical cooling is typically most relevant to HVAC&K application. However, there are emerging applications in the built environment such as micro-turbine systems and electronics cooling in which heating of supercritical carbon dioxide is of interest. In this presentation, experimental work on heating of sCO2 in small geometries is presented. The experiments show that even in small diameters, buoyancy can significantly influence the convective heat transfer. Thus, models to accurately predict the heat transfer must account for these effects.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions - 2019 ASHRAE Annual Conference
Number of pages4
ISBN (Electronic)9781947192355
StatePublished - 2019
Event2019 ASHRAE Annual Conference - Kansas City, United States
Duration: Jun 22 2019Jun 26 2019

Publication series

NameASHRAE Transactions
ISSN (Print)0001-2505


Conference2019 ASHRAE Annual Conference
Country/TerritoryUnited States
CityKansas City

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering


Dive into the research topics of 'Heating of supercritical carbon dioxide in small channels'. Together they form a unique fingerprint.

Cite this