Steam expanding within the nominal mixed phase (liquid-vapour) region invariably supersaturates whatever its initial condition. The use of the Zeuner equation γ = 1·035 + x1/10, based upon equilibrium expansion, is therefore invalid and should be discontinued.
Get full access to this article
View all access options for this article.
References
1.
ZeunerG.Technical thermodynamicsVol. 2, 83.
2.
PerryJ.The steam engine1902 (Macmillan, London).
3.
FosterJ.Engineer, Lond.190395, (April 10th), 358.
4.
HendersonJ. B.‘Theory and experiment in the flow of steam through nozzles’, Proc. Instn mech. Engrs1913, 253.
5.
ParentyH.‘Sur le débit des gaz parfaits et de la vapeur d'eau sous pressions à travers les orifices’, Annls Chim. Phys.18968, (Seventh series), 5.
6.
NapierR. D.‘The flow of fluids under pressure’, a series of letters to Engineer, Lond., 1867.
7.
KeartonW. J.Steam turbine theory and practiceSeventh edition, 1958 (Pitman, London).
8.
RateauA.Experimental researches on the flow of steam through nozzles and orifices1905 (Constable).
9.
MartinH. M.‘A new theory of the steam turbine’, Engineering, Lond.1918 (106), 1et seq..
10.
MellanbyA. L.KerrW.‘The supersaturated condition as shown by nozzle flow’, Proc. Instn mech. Engrs1922, 855.
11.
GoudieW. J.Steam turbinesSecond edition, 1929 (Long-mans, Green & Co., London).
12.
CallendarH. L.‘Steady flow of steam through a nozzle or throttle’, Proc. Instn mech. Engrs1915, 53.
13.
LowD. A.Heat engines1937 (Longmans, Green & Co., London).
14.
BakerWright H.Inchley's theory of heat engines1938 (Longmans, Green & Co., London).
