TY - JOUR
T1 - Pressure-drop reduction and heat-transfer deterioration of slush nitrogen in square pipe flow
AU - Ohira, Katsuhide
AU - Nakagomi, Kei
AU - Takahashi, Koichi
AU - Aoki, Itsuo
N1 - Publisher Copyright:
© 2015 The Authors.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2015
Y1 - 2015
N2 - Pressure drop and heat transfer tests were carried out using slush nitrogen flowing in a horizontal square pipe at flow velocity between 1.0 and 4.9 m/s, with a mass solid fraction between 6 and 26 wt.%, and with heat fluxes of 0, 10 and 20 kW/m2. Pressure drop reduction became apparent at flow velocity of 2.5 m/s and over, with the maximum amount of reduction being 12% in comparison with liquid nitrogen, regardless of heating, while heat transfer deterioration became apparent at flow velocity of 1.0 m/s and over, with the maximum amount of deterioration being 16 and 21% at 10 and 20 kW/m2, respectively.
AB - Pressure drop and heat transfer tests were carried out using slush nitrogen flowing in a horizontal square pipe at flow velocity between 1.0 and 4.9 m/s, with a mass solid fraction between 6 and 26 wt.%, and with heat fluxes of 0, 10 and 20 kW/m2. Pressure drop reduction became apparent at flow velocity of 2.5 m/s and over, with the maximum amount of reduction being 12% in comparison with liquid nitrogen, regardless of heating, while heat transfer deterioration became apparent at flow velocity of 1.0 m/s and over, with the maximum amount of deterioration being 16 and 21% at 10 and 20 kW/m2, respectively.
KW - heat transfer deterioration
KW - hydrogen energy system
KW - pressure drop reduction
KW - slush hydrogen
KW - slush nitrogen
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U2 - 10.1016/j.phpro.2015.06.115
DO - 10.1016/j.phpro.2015.06.115
M3 - Conference article
AN - SCOPUS:84948433447
VL - 67
SP - 681
EP - 686
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3892
T2 - 25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014
Y2 - 7 July 2014 through 11 July 2014
ER -