- Email: [email protected]
Corrigendum to “Analytical and Experimental Investigation of Small-scale Unintended Releases of Hydrogen” [Int J Hydrogen Energy 33 (2008) 1435–1444]
international journal of hydrogen energy 34 (2009) 2517–2518
Available at www.sciencedirect.com
journal homepage: www.elsevier.com/locate/he
Corrigendum
Corrigendum to ‘‘Analytical and Experimental Investigation of Small-scale Unintended Releases of Hydrogen’’ [Int J Hydrogen Energy 33 (2008) 1435–1444] W. Houf *, R. Schefer1 Sandia National Laboratories, P.O. Box 969, Livermore, CA 94551-0969, United States
The authors regret that when the above article was printed, the text and Fig. 14 were incorrect. The correct text and figure are now printed below. The authors apologise for any inconvenience that this may have caused.
Fig. 14 shows simulations of the centerline concentration decay of horizontal jets (q0 ¼ 0 ) from the slow leak model versus the streamwise distance along the jet centerline for various densimetric Froude numbers. For a densimetric
2
50 Frden = 300 Frden = 100 Frden = 500
30
Frden = 1000 4
20 6
1/2
η cl (x) =
x + xo
10 K= 4.1
0
KD
0
200
400
600
⎛ ρ∞ ⎞ ⎜ ρ gas ⎟ ⎝ ⎠
800
Mole Fraction
1 / Mole Fraction
40
10
1000
S/D
DOI of original article: 10.1016/j.ijhydene.2007.11.031. * Corresponding author. Tel.: þ1 925 294 3184; fax: þ1 925 294 3870. E-mail address: [email protected] (W. Houf). 1 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94-AL85000. 0360-3199/$ – see front matter Published by Elsevier Ltd on behalf of International Association for Hydrogen Energy. doi:10.1016/j.ijhydene.2009.01.020
2518
international journal of hydrogen energy 34 (2009) 2517–2518
Froude number of 1000 the plot is linear, indicating that jet is momentum-dominated throughout the concentration region of interest (100%–2% mole fraction) and not affected by buoyancy. A linear regression analysis of the Frden ¼ 1000 concentration decay curve yields an entrainment constant of K ¼ 4.1.
This value of K is within 24% of the value of K ¼ 5.40 used by Houf and Schefer (2007) to compute the concentration decay of supercritical choked-flow releases of hydrogen and the value of K ¼ 5.40 measured by Birch (1987) for natural gas jet concentration decay.
Available at www.sciencedirect.com
journal homepage: www.elsevier.com/locate/he
Corrigendum
Corrigendum to ‘‘Analytical and Experimental Investigation of Small-scale Unintended Releases of Hydrogen’’ [Int J Hydrogen Energy 33 (2008) 1435–1444] W. Houf *, R. Schefer1 Sandia National Laboratories, P.O. Box 969, Livermore, CA 94551-0969, United States
The authors regret that when the above article was printed, the text and Fig. 14 were incorrect. The correct text and figure are now printed below. The authors apologise for any inconvenience that this may have caused.
Fig. 14 shows simulations of the centerline concentration decay of horizontal jets (q0 ¼ 0 ) from the slow leak model versus the streamwise distance along the jet centerline for various densimetric Froude numbers. For a densimetric
2
50 Frden = 300 Frden = 100 Frden = 500
30
Frden = 1000 4
20 6
1/2
η cl (x) =
x + xo
10 K= 4.1
0
KD
0
200
400
600
⎛ ρ∞ ⎞ ⎜ ρ gas ⎟ ⎝ ⎠
800
Mole Fraction
1 / Mole Fraction
40
10
1000
S/D
DOI of original article: 10.1016/j.ijhydene.2007.11.031. * Corresponding author. Tel.: þ1 925 294 3184; fax: þ1 925 294 3870. E-mail address: [email protected] (W. Houf). 1 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94-AL85000. 0360-3199/$ – see front matter Published by Elsevier Ltd on behalf of International Association for Hydrogen Energy. doi:10.1016/j.ijhydene.2009.01.020
2518
international journal of hydrogen energy 34 (2009) 2517–2518
Froude number of 1000 the plot is linear, indicating that jet is momentum-dominated throughout the concentration region of interest (100%–2% mole fraction) and not affected by buoyancy. A linear regression analysis of the Frden ¼ 1000 concentration decay curve yields an entrainment constant of K ¼ 4.1.
This value of K is within 24% of the value of K ¼ 5.40 used by Houf and Schefer (2007) to compute the concentration decay of supercritical choked-flow releases of hydrogen and the value of K ¼ 5.40 measured by Birch (1987) for natural gas jet concentration decay.