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Corrosion problems in steam jet vacuum equipment
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described. Typical problems encountered were presented with their practical solutions. C o r r o s i o n P r o b l e m s in S t e a m Jet V a c u u m E q u i p m e n t . Presented by : D. H. Jackson. Erosion and corrosion in normal high-speed steam jet vacuum equipment is a serious problem. The damage rate is higher than in almost any other equipment handling steam. The results of actual operating tests on numerous alloys, plastics and carbon were presented. For most purposes the high chromium alloy steels appear to be most satisfactory from a service standpoint.
Flash V a p o r i s a t i o n - - Analysis o f Fluid M e c h a n i c a l and Mass T r a n s f e r P r o b l e m s . Presented by : R. R. Hughes, H. D. Evans an,/ C. V. Sternling. The semi=quantitative treatment given in this paper of the mechanical separation of liquid from vapour in flashers and evaporators will aid materially in the design of this type of equipment. The general concepts of liquid atomisation and drop separation were discussed as was flashing efficiency. I. A. BRO,MI.EY.
Personal Data of Authors kI,ANCRAIG,(2. R. Kaiser Aluminium and Chemical Co.., Moss Landing, Calif., U.S.A. BL~SS, H., Yale University, New Haven, Conn., U.S.A. I~ROMLEY~L. A., Dept. of Chemistry & Chemical Engineering, University of California, Berkeley, Calif., U.S.A. I)AYTON, B. B., Vacuum Equipment Dept., Distillation Products Industries, Rochester, N.Y.. U.S.A. ESHAY^, A. M., Yale University, New Haven, Conn., U.S.A. EVANS, H. D., Shell Development Co., Emeryville, Calif., U.S.A. FOLSOM, R. G., Professor of Mechanical Engineering, University ot California, Berkeley, Calit\, U.S.A. EONDRK, V. V., Product Engineer, General Apparatus Engineering Division, Elliott Co., Inc., Jeanette, Pa., U.S.A. FmSCH, N. W., Yale University, New Haven, Conn., U.S.A. t{ICKMAN, K., Consultant, t36 , Pelham Road, Rochester to. N.Y., U.S.A. | IUGHES,R. R., Shell Development Co., Emeryville, Calif., U.S.A. tltlLL, L. W., F. ]. Stokes Machine Co., Philadelphia, Pa., U.S.A. )~(:KSON, D. H., Vice President, Cro]l-Reynolds Co. Inc., New York. N.Y., U.S.A.
150
KELLY, E. J., ('onceotrator l)ept. Carrier CorporatiolL Sy~a~:u~c. N '~ U.S.A. LAWRANCE,R. B. ) Director of Applied Physics l)ept., Natioual Reseat, 1 Corporation, Cambridge, Mass, U.S.A. LEONARD,B. R.) Mechanical Engineer, Equipment Engineering Section National Advisory Committee for Aeronautics. I,ewis Fli~h Propulsion Laboratory, Cleveland, Ohio, U.S.A. NCtASLACH, G. J.~ Supervising Engineer, Institute ol En~,ineerm, Research, University of California, Berkeley, Calil.. Ir.S A. Mooz, W. E., National I.ead Co.. Titanium Division. South Amb~,? U.J., U.S.A. OETJEN, a . W., E. Leybold's Nachfol.v,er, Ko'ln-Bayenwi, ( iermany STEELE, F. M.~ Research EnL,ineer The Hilliard ('orporation }~lmira, N.Y., U.S.A. STERNLING, C. V., Shell Development C(... Emeryville. t ~)lif., U . S . ; \ SrODDM~D~C. K.~ National Lead C(,. Titanium Divisio~l, S,mtb \mbo3 N.J., U.S.A. "I'REVt)Y, I). 1., Kodak. Research 1,aboratories, Rochc
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described. Typical problems encountered were presented with their practical solutions. C o r r o s i o n P r o b l e m s in S t e a m Jet V a c u u m E q u i p m e n t . Presented by : D. H. Jackson. Erosion and corrosion in normal high-speed steam jet vacuum equipment is a serious problem. The damage rate is higher than in almost any other equipment handling steam. The results of actual operating tests on numerous alloys, plastics and carbon were presented. For most purposes the high chromium alloy steels appear to be most satisfactory from a service standpoint.
Flash V a p o r i s a t i o n - - Analysis o f Fluid M e c h a n i c a l and Mass T r a n s f e r P r o b l e m s . Presented by : R. R. Hughes, H. D. Evans an,/ C. V. Sternling. The semi=quantitative treatment given in this paper of the mechanical separation of liquid from vapour in flashers and evaporators will aid materially in the design of this type of equipment. The general concepts of liquid atomisation and drop separation were discussed as was flashing efficiency. I. A. BRO,MI.EY.
Personal Data of Authors kI,ANCRAIG,(2. R. Kaiser Aluminium and Chemical Co.., Moss Landing, Calif., U.S.A. BL~SS, H., Yale University, New Haven, Conn., U.S.A. I~ROMLEY~L. A., Dept. of Chemistry & Chemical Engineering, University of California, Berkeley, Calif., U.S.A. I)AYTON, B. B., Vacuum Equipment Dept., Distillation Products Industries, Rochester, N.Y.. U.S.A. ESHAY^, A. M., Yale University, New Haven, Conn., U.S.A. EVANS, H. D., Shell Development Co., Emeryville, Calif., U.S.A. FOLSOM, R. G., Professor of Mechanical Engineering, University ot California, Berkeley, Calit\, U.S.A. EONDRK, V. V., Product Engineer, General Apparatus Engineering Division, Elliott Co., Inc., Jeanette, Pa., U.S.A. FmSCH, N. W., Yale University, New Haven, Conn., U.S.A. t{ICKMAN, K., Consultant, t36 , Pelham Road, Rochester to. N.Y., U.S.A. | IUGHES,R. R., Shell Development Co., Emeryville, Calif., U.S.A. tltlLL, L. W., F. ]. Stokes Machine Co., Philadelphia, Pa., U.S.A. )~(:KSON, D. H., Vice President, Cro]l-Reynolds Co. Inc., New York. N.Y., U.S.A.
150
KELLY, E. J., ('onceotrator l)ept. Carrier CorporatiolL Sy~a~:u~c. N '~ U.S.A. LAWRANCE,R. B. ) Director of Applied Physics l)ept., Natioual Reseat, 1 Corporation, Cambridge, Mass, U.S.A. LEONARD,B. R.) Mechanical Engineer, Equipment Engineering Section National Advisory Committee for Aeronautics. I,ewis Fli~h Propulsion Laboratory, Cleveland, Ohio, U.S.A. NCtASLACH, G. J.~ Supervising Engineer, Institute ol En~,ineerm, Research, University of California, Berkeley, Calil.. Ir.S A. Mooz, W. E., National I.ead Co.. Titanium Division. South Amb~,? U.J., U.S.A. OETJEN, a . W., E. Leybold's Nachfol.v,er, Ko'ln-Bayenwi, ( iermany STEELE, F. M.~ Research EnL,ineer The Hilliard ('orporation }~lmira, N.Y., U.S.A. STERNLING, C. V., Shell Development C(... Emeryville. t ~)lif., U . S . ; \ SrODDM~D~C. K.~ National Lead C(,. Titanium Divisio~l, S,mtb \mbo3 N.J., U.S.A. "I'REVt)Y, I). 1., Kodak. Research 1,aboratories, Rochc