TY - GEN
T1 - Experimental and numerical study of mixing in a horizontal hot-water storage tank
AU - Aviv, A.
AU - Morad, S.
AU - Ratzon, Y.
AU - Ziskind, G.
AU - Letan, R.
PY - 2009/10/19
Y1 - 2009/10/19
N2 - Thermal mixing and stratification are explored experimentally in a horizontal cylindrical tank, which simulates a storage of water heated by a solar collector. The tank is 70 cm long and 24 cm in diameter. The study is conducted in a transient mode, namely, the tank is filled with hot water, which in the course of operation is replaced by the tap water in a stratified way or by mixing. The flow rates of 2, 3, 5 and 7 liters per minute are explored. Temperature of hot water is usually about 55 °C., while the tap water is about 20 °C. In the experiments, both flow visualization and temperature measurements are used. The effects of port location and deflector installation are examined. The experimental results are presented in a dimensionless form, as the normalized outlet temperature vs. dimensionless time. Three-dimensional transient numerical simulations, done using the Fluent 6 software, provide an additional insight in the process of mixing inside the tank.
AB - Thermal mixing and stratification are explored experimentally in a horizontal cylindrical tank, which simulates a storage of water heated by a solar collector. The tank is 70 cm long and 24 cm in diameter. The study is conducted in a transient mode, namely, the tank is filled with hot water, which in the course of operation is replaced by the tap water in a stratified way or by mixing. The flow rates of 2, 3, 5 and 7 liters per minute are explored. Temperature of hot water is usually about 55 °C., while the tap water is about 20 °C. In the experiments, both flow visualization and temperature measurements are used. The effects of port location and deflector installation are examined. The experimental results are presented in a dimensionless form, as the normalized outlet temperature vs. dimensionless time. Three-dimensional transient numerical simulations, done using the Fluent 6 software, provide an additional insight in the process of mixing inside the tank.
UR - http://www.scopus.com/inward/record.url?scp=70349929182&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:70349929182
SN - 9780791843192
T3 - 2008 Proceedings of the 2nd International Conference on Energy Sustainability, ES 2008
SP - 591
EP - 597
BT - 2008 Proceedings of the 2nd International Conference on Energy Sustainability, ES 2008
T2 - 2008 2nd International Conference on Energy Sustainability, ES 2008
Y2 - 10 August 2008 through 14 August 2008
ER -
