Document b5dje0XqGR8nXepeL8LdRJMZ

Tide Power Slid Molds Interest In England The Sewn tide-power prefect U still being considered la England, bat presptct* do sot look Urerablo (or balVlIng It In the near fatore. One bee bceo proposed, however, (or luuUetloo la Menti Strait botween Angle**? Island and Northwest Wales mainland. This project would hare the advantage of continuous power generation, by providing storage In two reservoirs formed by three dams. One el these dsns would be built at northeast end of the strait near Bangor, a second dam would bo belli about hallway along the strait and third at Its southwest end, at Belaa Point. A power plant Is to be Installod at the center dam. Reservoir formed by the dam at Bangor will bo kept at Its highest possible level by filling It et high tide. At Belsn Point the reservoir will be kept at its lowest possible level by emptying It at low tide. At high tide, with Bangor reservoir lull and Brian Point one empty, tho plant at the middle dam Is started. Level In Bangor reservoir drop* and that in tho other rises, until tide level drops below that In Belsn Point reservoir. Gates In the dam forming this reservoir open and Its ie*cl goes down with the tide. When tide level startj to rise Belsn Point gates close and level In this reservoir starts to rise beeseso of discharge from the turbine*. AU this time level la Bangor reservoir is dropping. When Uda level equals that in this reservoir, gates open and it fills with rising lido level At high tide this reservoir is again (uIL During this cycle there is always a bead difference between the two reservoir* to Insure operation of tho powergenerating units. Average plant output Is estimated at 6000 kw. Britain Operates Second Atomic Pile In T048 Loitoott: High-power atemio-enerffy pile, to bo constructed et atomic-energy research establishment at Harwell, near Didcotr Berkshire, b expected to be !o operation . about the middle ol 1948, G R Strauss, Minister of Supply, told the House ol Commons recently. Britain's first atomic pile, a emeU-eeale low-energy preposition, has been >o opera tion at Harwell since late this summer. It Is producing "about enough beat to tun ooo electric fire," Professor P B Moon, secretary ef the Atomic Scientists' Assn, (Continued on page 170) A ft Schiller (left), president. Public Service Co ol Now Hompshire. and T S V General Electric commercial vice-president, view o scole model of now GE 73 mercury turbine. Two of these units or* being furnished for the 40,000-kw P Service station ot Portsmouth, N. H,, expected to bo one of the moat efficient h] tho world. Each of the two complete mercury elements consist* of o mercury bolter, i 7500-fcw )200*rpm turblne-generotor end o condenser boiler. Steam output ef mh condenser bolter It passed through o superheater element In the'combustion spend tho mercury boiler. Steom flows ore then combined at 600 pst. 825 F, to Used*' 25,000-kw 3600-*pm steom turbine direct-connected to a hydrogen.cooled gwreratg. This modal wot exhibited recently ot 23rd onnuol New England Conference ot 0 COMING EVENTS- Feb 2-6--American Society of Heat Apr 1 -5--American Institute ef ing and Ventilating Engineer*, 6th EleetrieaJ Engineers, Great Lakes dis International Heating and Ventilating trict meeting, Des Moines, lows. H H Exposition, Grand Central Place. New Menline, secretary- U W 39th St, Nr* York 17. N. Y. Charles P Roth, man York 18, N. Y. ager, International Exposition Co. Apr S-l 1---New England Electrics! Grand Central Place. New York 17. - Show, Mechanics Bldg, Boston, Mass Feb 19-20--Prime Mover* Com Campbell-Fairbanks Exposition. las, mittee, Pennsylvania Electric Assn, 929 Park $q Bldg, Boston, Mas*. mid-winter meeting, Alexander Hole!, Apr S-8--National Assn of Con* Hagerstown, Md. K L Hallman, Peon- slen Engineer*, Hotel Jeffenan, ft- tvlvonla Power & IJgbt Co, Hatleton, loula, Mo. A B Campbell, executive Pennsylvania. secretary. 903 Southern Standard HUf, Mar 1*4--American Society of Mo- Houston 2, Tex. ekanfea! Engineer*, spring meeting. Apr 5-B--National Oil Heat Bipod St. Charles Hotel. New Orleans. La. t(on, Chicago Coliseum, Chicago. Iff- Ernest Hartford, executive assistant see* C F Curtin, ecretaty.treasurer, Ran retort, 29 W 39th St, New York. 1637, 30 Rockefeller PL New York tft Mar 9-11--Western Pa. Safety Engrg Conference ft Exhibit, Hotel William Penn, Pittsburgh, Pa. Harry H Bralnerd, executive manager. Cham ber of Commerce Building, Pittsburgh 19, Pennsylvania. New York, Apr 26-30--American liutltats *f Electrical Engineer*, Northeaster* district meeting. New Hven, Goa*H H Menline, secretary- 33 W fifth St- New Yorit 18, N. Y. lit <1201 FO W Eft February proof vm ARMSTRONG TRAPS PAT DWflJWTOfc J*l y. *, rd)f- ;i9;ttX(t? Wt '.V "J" CPl7'}' tfj- 'K. uJi'iCMo, c.inr V-l'ii-- ,-i-l .'rlM Cj-f-' lO .'C.'-., //{.ylH 'Uh s.yit *''/, 'Sfinr.fh ftfn-jA V/Mt, |il-t ' ' jifv-rii-.tri-ij).,!?'/" > iwfclttit WHY UNIT TRAPPING iS ESSENTIAL: It you try to drain condensate from more than one. steamconsuming unit with the same trap, sluggish heating and low temperatures wilt almost always result. This is because no two units condense steam at the same race. The pressure will be lowest in the unit condensing steam the fastest Condensate from the higher pressure unit will back up into the. lower pressure unit (or close the check valve), tent* porarily blocking off its drainage. This prevents escape of air and condensate, lowers the machine temperature and wastes fuel. However, the use of a separate trap on each unit permits individual operation without any effect from* different condensing cates. You get maximum temperatures and maximum production; WHY ARAfSTROJVGS ARE BEST FOR UNIT TRAP- PING: They not only discharge eondensote as fast as it accumulates, but they discharge air as well. This is essential to fast healing and uniform high temperatures. Further* mote, you don't Hava to be afraid of increasing the number of traps In your plant because Armstrongs seldom need attention. They won't clog or stick; dirt Is swirled right through; the chrome steel valve and seat and corrosionresistant stainless interior stand up in constant service for yean and yean. THE ARMSTRONG STEAM TRAP BOOK gives com- plete data necessary for selection, installation and main tenance ot Armstrong traps. Send. for a copy. ARMSTRONG MACHINE WORKS 612 Maple |trst Thra* Rlvsn. Michigan flBMSTBONC^'^^.STEflM TRAPS No. 2 of a scries of advertisements devoted to Improving effitiemy through hotter trapping. HI