mputation of the resistance offered by the checkerwork
of a regenerator is given below as an example. This checkerwork
is composed of vertical channels, those in one tier being 120 mmX
60 mm and in the alternate tiers 60 mm X 60 mm.
The velocity of the gas in the smaller channels is" Fmax and
in the larger channels Vmm, so that
__ V max
mln-------?) *
C1) This lack has recently been supplied, in part by W. A. Mojarow, in a
paper on the "Friction of gases in brickwork flues" in the Rev. de la Societe
russe de Metallurgie, 1913, No. 3, pp. 325-370; Revue de Metallurgie, XI bis,
May, 1914, P> 820. Appendix IV.
(2) Considerable data covering the flow of air may be found in, Le Chauflage
Industrielle by H. Le Chatelier, p. 47? & seq. D. Murgue "On the loss of head
in Air Currents in Underground Workings. Trans. A.I.M.E., 1898, Vol.
XXIII. Appendix V. (Notes et Formules p. 1090 et seq.)
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