Document 4J4Ejv25aV461Gdbm12pgkrrj

Bod how 10 heat, cool, ventilate and condition air in any build* fug. Selection of equipment, automatic .control*, and the design of air duet* and liquid-piping system* ate thoroughly cov ered Not only (| ft an eicefteat reference book for thaae actively engaged in air conditioning and refrigeration work but it il alto o valuable guide for thoae entering the field. Heol P*tt Thermodynamics (second edition--194B), By Lester C Lichty, professor oj mechan ical engineering, Yale University. $41 pp, 6*9; 26 tables; 12 charU; 148 iUtut. 14.50. McGraw-Hill Book Co. 310 V 42itd St. New York 18, N. Y. TbU revteed edition maintain* the orig inal aim of minimising mathematical man ipulation! in favor of emphaaieing method* of fundamental analyiia applied to energy relationships. The teat haa been largely rewritten to cfatffy the more difficutl sub ject*. A feature that atudenta will welcome i* the adoption of treating all enertr element* a* Independent, positive quentliie*, elim inating (he expression of energy com ponenti a* the difference between that entering end leaving. Thta avoid* condi tion on the student's part la proper obeervetion of mathematical signs. Table* (or problem aolution have barn aobatituted for pedfic-heat equation*, end aolutlona of /*K* = C. The chapter on fluid flow Includes the Items of supersonic flow, Mach number, shock, jet propulsion, compressor and tur bine blading, ram-chamber and diffniers. Magnetic Control Macpstic Control or Industrial Motors (1947). By Gerhart W Neumann, con trol engineering division, Apparatus Depanmont, General Electric Co, 589 pp. 91x6), illust, doth. 87.50. John IFiley & Sons, fnc, 440 Fourth Aoe, New York 16, N. Y. Whereas the designer concentrates on o device, e circuit, or e mechanical arrange ment of parts, the plant or operating engi neer must have a knowledge of what con trol equipment can accomplish. This book answers that need by providing a coverage ol electric motor performance, characteris tics of control devices, and functions of commonly used control circuits. Jaf Propulsion Jet Paoruuiow Paocaua (1948). By Leslie E Neville, director, Standard Aero nautical Index, Institute of the Aeronautical Sciences, and Nathaniel F Sitsbee, colonel. Air Reserve. 232 pp; 6x9; Blast; 13.50. McCrow-HiU Book Co, 330 IT 42m! Si, New Vfor* 18, N. V. The development of the oircroli gas tur bine U lotd in this little volume in simple ttd accurate terms Known popularly as the turbo-jet end turbo-prop engines, they h*e initialed a revolution in airplane do*ign. A detailed account Is given of the possibilities end a comprehensive picture of initial experiments and development to date. Various designs produced in tho United States, England and Germany are discussed and evaluated, including the MC262, which nearly turned the tide again*! the Allied air forces. The book include* on interesting 9-page chronology of aircraft gas turbines covering a period from 1917 to Dec 1946. lloctrUol Troubles Trouslu or Elkctrical Equipment [third edition, 1947). By H E Stafford, electrical engineer, Marathon Paper Mills of Canada, Ltd. 455 pp, 6t9 in., 364 illtut, 28 tables, doth. 84.40. McGrowHill Book Co, &S0 V 42nd St, New York 18. N. Y. To locale and correct elettrlcal trouble* quickly is the mark ol a good mainte nance engineer. Here ia material lo help attain such proficiency. Sevetal eheptm have hern rewritten and enlarged lu PUMP-CASING EROSION In tho fo/Jowing brief discussion, A L Sherman, chief engineer. The J S Coffin. Jr, Co, enters a dissent on one part of the article "Correct Materials Make Feed Pumps Immune to Corrosion-Ero sion,'* by If L Rosa (Power, July, pp 86-88): "While erosion-corrosion of multistage horizontally split steel-volute-ciue pumps has undeniably been trouble some In a great many instance*, the writer feels that the broad claim made in one paragraph of Mr Rosa's article is open to criticism." This paragraph is quoted as follows: Pump Design: Corrosion-erosion oc curs In one design of feedwater pump as often os it does in another. It is as sociated with high liquid velocities but it is impossible lo design a pump with velocities low enough to avoid the at tacks. "It should be pointed out that J S Coffin, Jr, Co manufactures centrifugal pumps employing, we believe, Higher velocities than those of any other manu facturer; at least, we know of no other designs using impeller tip velocities in the neighborhood of 300 ft per second for lifts of approximately 1800 ft in one stage. Notwithstanding these velocities, we have not yet observed a single case of significant easing erosion-corrosion in a great many installations. Many of these plants had experienced erosioncorrosion difficulties with other centrif uge! pumps. bring the material up to date, two chapters, two major tables, and 34 diagrams. tTaadbl.e^*wJ1sli 2*51a..re. bandied _m_u__cwh _a_a___pchys.ld.a**c,ttn| a case. Tho symptoms being trouble, esuse and remedy are dcdweU Equipment treated Includes: ie mown and generators, uaatloruera'jj* break and oil circuit breakers, tela*.' C1tor Centro), lightning arresters, regulators, cables and storage Other chapter* cover. method *{ WUe ing inatfument transformers, poiaten.*, selecting motor* for industrial app| lions, Insulation testing, power its control, economical use of power, e tenants and impectloo cheriaUl ^ survey* and how to make them, duslrisj lubrication. Many valuable tables disgaoio tn,, of specific equipment, giving tyopu, cause and remedy, A uble la provided: practically every das* ol industrial trlcal equipment. The author' bum** book on nearly 40 year* experience u Induiirisl-plam. operating, electrical t Smoko Prevention ii PaocccoiNcs or ms 1947 CoKrtitucriq rna Strom Phcvcntion AaoocuTroit, 1 pp, Bln 11; IT pp of Illustration, ttJQfl John Taylor, publisher, $20 Pleasant 6k Stfl Joseph, Mich. . Here In one volume ore collected ibe,tl 'papers and the discussion* el each, pit' vented before the Smoke Prevention An elation of America at iu annual ffleetlag faj Toronto, July 1947, The ssoocUtion b era? prised mostly of smoke inspectors for are niclpditle*. These papers are valuable lot their ti _ nical content and far their Inrffcatfco^fL the atfope of today's smoke-eoferreBeua program, tanging (com locomotive* thm|)j[ all Industrie*. Authors of the papers are lor the as* part wtU-reeognUed leaden la their fieM*.' For instance, Dr. L C McCabe, chief of e*<j div, U. S. Bureau of Mines, has s papefj "Observations Abroad," baaed on hi* tr; perlence in postwar Germany; C E Leake, Disco Co, "Recent Progress in Sookrien Fuel Processing;" and E C Payne, tonmW Ing engineer, Pittsburgh Consolidation Co, "l.ocomotive Fuel Performance." Precast engineering Manual ron Pnocssa Encincesinc CsLCO-fl LATtonj (1947). By Loyd Clarke, fed engineer, Cetanese Corp of Amsrin*4 438 pp; 6x9; charts, tables, illust; MB McGraw-Hill Book Co, 530 T 42nd &S New York 18, N. Y. Here ere compiled dels useful >n mkio| g quick, preliminary calculation* wncernbf 1 eheroleal processes from the research W ^* 4 final design stage. The book coxuiiufl self-explanatory tables, chart* sod eq'tr'ri lions which aro the most used In pr*cf** 3 engineering. Material covers eontf**J factors, physical and mechanical prv?*5'^ ties, equipment performance factor* **d (Continued on page 140) fid flWl /Seech 16,280 pounds \ of Anaconda Copper Tube Sheet go into this Westinghouse Condenser s|S. j^OWlk . March 1948 4ft ioA c/fnacoTuda COPPER & COPPER ALLOYS THE AMERICAN BRASS COMPANY General Offices: Waterbury 88, Connecticut Subsidiary oj Anaconda Copper Afiofnj Company lu Comados AHacOkoa ahisKan Bbass Ltd. New Toronto, Oot, joaKMEN are shown inscalllagone ' Wof two 8,140 lb. copper tube sheets in a giant condenser being built by (be Wejtioghouw Electric Corporation of Philadelphia, Pa. for the PublicService Company of Okla homa, Ttilia, Oklahoma. The plates lot these tube sheets, measuring \Y 9** high and IH" thick, were pro duced at the Detroit Mill of The American Brass Company: The com pleted condenser will contain 5,200 tubes--and wilt hove h 32,500 aq. ft, capacity. Anaconda Electrolytic Ibugh Pitch Copper it desirable because of the high atkatme content of the lbIsa water supply. |j Anaconda Rolled Plates and Greta for condenser, tube sheets ere un surpassed in soundness end close grain structure. They can be sup plied in rectangles, squares, circles, ovals, segments and sectors thereof. Plates are regularly manufactured in widths up to 156" (circles up to 160" diameter) and In weights up to 9,000 lb. and heavier--depending on the alloy and shape. In determining the most suitable al loys for tubes and tube sheets, equip ment manufacturers are invited to consult out Technical Department. Publication 6-2 available on-request. III