TY - GEN
T1 - Tuning the extinction coefficient for direct absorption solar thermal collector optimization
AU - Otanicar, Todd P.
AU - Phelan, Patrick
AU - Taylor, Robert A.
AU - Tyagi, Himanshu
PY - 2010
Y1 - 2010
N2 - Direct-absorption solar thermal collectors have recently been shown to be a promising technology for photothermal energy conversion but many parameters affecting the overall performance of such systems haven't been studied in depth, yet alone optimized. Earlier work has shown that the overall magnitude of the extinction coefficient can play a drastic role, with too high of an extinction coefficient actually reducing the efficiency. This study investigates how the extinction coefficient impacts the collector efficiency and how it can be tuned as a function of depth to optimize the efficiency, and why this presents a unique design over conventional solar thermal collection systems. Three extinction profiles are investigated: uniform, linearly increasing, and exponentially increasing.
AB - Direct-absorption solar thermal collectors have recently been shown to be a promising technology for photothermal energy conversion but many parameters affecting the overall performance of such systems haven't been studied in depth, yet alone optimized. Earlier work has shown that the overall magnitude of the extinction coefficient can play a drastic role, with too high of an extinction coefficient actually reducing the efficiency. This study investigates how the extinction coefficient impacts the collector efficiency and how it can be tuned as a function of depth to optimize the efficiency, and why this presents a unique design over conventional solar thermal collection systems. Three extinction profiles are investigated: uniform, linearly increasing, and exponentially increasing.
UR - http://www.scopus.com/inward/record.url?scp=84860270591&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860270591&partnerID=8YFLogxK
U2 - 10.1115/ES2010-90022
DO - 10.1115/ES2010-90022
M3 - Conference contribution
AN - SCOPUS:84860270591
SN - 9780791843949
T3 - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
SP - 819
EP - 824
BT - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
T2 - ASME 2010 4th International Conference on Energy Sustainability, ES 2010
Y2 - 17 May 2010 through 22 May 2010
ER -