TY - GEN
T1 - Enhancing the heat transfer in energy systems from a volumetric approach
AU - Otanicar, Todd P.
PY - 2011
Y1 - 2011
N2 - Many energy systems rely on flat surfaces for energy conversion. The simplest example is the solar thermal collector which absorbs solar irradiance on a flat plate and then transfers heat via conduction, convection and radiation to both the surroundings and more importantly to the working fluid. Conversely a night-sky radiator tries to lose heat via convection and radiation to ambient and night sky respectively while being coupled either via convection or conduction to higher temperature system. The recent advent of nanoparticles, particularly liquid-nanoparticle suspensions termed nanofluids, have led to novel systems that can reduce some of these heat transfer steps by utilizing the whole fluid volume directly. This study looks at the advantages afforded by using the volumetric approach on both the radiative properties of the system and the simplification of the heat transfer networks within these systems.
AB - Many energy systems rely on flat surfaces for energy conversion. The simplest example is the solar thermal collector which absorbs solar irradiance on a flat plate and then transfers heat via conduction, convection and radiation to both the surroundings and more importantly to the working fluid. Conversely a night-sky radiator tries to lose heat via convection and radiation to ambient and night sky respectively while being coupled either via convection or conduction to higher temperature system. The recent advent of nanoparticles, particularly liquid-nanoparticle suspensions termed nanofluids, have led to novel systems that can reduce some of these heat transfer steps by utilizing the whole fluid volume directly. This study looks at the advantages afforded by using the volumetric approach on both the radiative properties of the system and the simplification of the heat transfer networks within these systems.
UR - http://www.scopus.com/inward/record.url?scp=85085782946&partnerID=8YFLogxK
U2 - 10.1115/ajtec2011-44170
DO - 10.1115/ajtec2011-44170
M3 - Conference contribution
AN - SCOPUS:85085782946
SN - 9780791838921
T3 - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
BT - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
T2 - ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
Y2 - 13 March 2011 through 17 March 2011
ER -