Experimental study on CHF characteristics of water-TiO2 nano-fluids
Creators
- 1. Pohang University of Science and Technology, Pohang (Korea, Republic of)
- 2. Korea Institute of Energy Research, Daejeon (Korea, Republic of)
Description
CHF characteristics of nano-fluids were investigated with different volumetric concentrations of TiO2 nanoparticles. Pool boiling experiments indicated that the application of nano-fluids, instead of pure water, as a cooling liquid significantly increased the CHF. SEM (Scanning Electron Microscope) observations subsequent to the pool boiling experiments revealed that nanoparticles were coated on the heating surface during pool boiling of nano-fluids. In order to investigate the roles of nanoparticles in CHF enhancement of nano-fluids, pool boiling experiments were performed using (a) a nanoparticle-coated heater, prepared by pool boiling of nano-fluids, immersed in pure water and (b) a nanoparticle-coated heater immersed in nano-fluids. The results demonstrated two different roles of nanoparticles in CHF enhancement using nano-fluids: the effect of nanoparticles coated on the heater surface and the effect of nanoparticles suspended in nano-fluids
Additional details
Publishing Information
- Journal Title
- Nuclear Engineering and Technology
- Journal Volume
- 38
- Journal Issue
- 1
- Series
- 9 refs, 11 figs, 2 tabs
- Journal Page Range
- p. 61-68
- ISSN
- 1738-5733
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 38057791
- Subject category
- S42: ENGINEERING;
- Descriptors DEI
- COATINGS; CRITICAL HEAT FLUX; HEATERS; PARTICLES; POOL BOILING; SUSPENSIONS; TITANIUM OXIDES
- Descriptors DEC
- BOILING; CHALCOGENIDES; DISPERSIONS; HEAT FLUX; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS