Document bBeawDX8reGvX7v54B3RXyYb0

kva Interrupting capacity connects the generator to the maio 6600-v mill bus. This breaker b in a steel cubicle near the generator terminals. All controls are Jo the main switching room, in the ground-wood mill tome 300 ft from the steam plant. Ovcrcurrent, differen tial and field-ground relays protect the generator. General Layout. The two new boil ers arc arranged so control panels, 'feedwater-regulating volvea and stair ways, to either basement or drum plat form and fan room, ere In or near the passageway between the unite. This arrangement aids efficient operation by placing the operator within easy reach of hb equipment When two ad ditional boiler* era Installed they will duplicate, as nearly as possible, the present arrangement of equipment There ia ample room around all equipment for maintenance and opera tion and, while no effort was made to "dress up" the plsnt the general ap pearance Is good. An important factor is the painting scheme; the system de veloped by Pittsburgh Plate Class Co, and known aa "color dynamics," has been followed when doing this work. PRINCIPAL STEAM AND ELECTRICAL EQUIPMENT . Slsam and Power Plant, Frater Companies STBAM-GENSRATtNO EQUIPMENT: PEEDWATER SYSTEM: Ballon. lupertneien........................................ Cetnbuptlan Bnclneertof Co BoUer*. Sj tout-tube, S-dram, wattr<eIH furnace; 90J1 *q fl f baallag eatftce In acb bailer; 1765 *q It In waterwettej riled Mfltlsuom eteemlng capacity >00.000 lb par hr, S20 pat at aopar- beater outlet; 100-P total eteam tempertturei 1000 cu ft funic* Tolnmej *1.000 Btu full.loed baat releaea par hr per ca ft (ataaca Tolnmei 10,000 Bra full-toad beat releaea per hr per *a ft of pr^ Jetted vetorcoolod (urnace eurfaca Air heattn.......................................................... Cornbuetloa Baglneeriflf Co Plata type. *000 a* ft beating aurfeea Batlar-eapponlng ataat, cailaga, Aacta and bcaachlnga Combuetloa Bnglaaerlng Co Boot blown ............................................................ Vulcan Boot Blotear Co Chimney ............................................ ... Canadian Chimney Co, Ltd Ooai radial brick. P-li iailda diameter, 99S ft high COMBUSTION EQUIPMENT: Automatic combuatJea control........................................Bailey ISatar Co Coal pulearlaan, feeden and primary air blowere Comboatlon Bagtaaeriag Co Pulworiitra. t par boiler: bowl typo. *000 lb per br oaefa; coat grlndablllty *0; praalmata aoelyile volatile 2*. Seed carbon 40, aeh IS, moiatura 10; aeh-eoftenlng temperature 1000 P Coal-pulvatlacr and primary-alr-fan matert....Canadian O-R Co, Ltd ti SO bp.-ISO v, tSOO-fp*- agolrtal cage ,, . Patvariecr-drive-aoter atartera............................ Canadian C-B Co, Ltd Coal-faadar ............................................................................ Bailey Haur Co Pnlvtfleed-coal ................................. Conabueilao Bnglaaarlog Co Circular, 4 per boiler, ISM lb par hr Autacaatlc coal aealaa (Rlehardaon)..........................Peacock Broa, Ltd Ported-dralt lane..................................................Canadian Btroeco Co. Ltd One par boiler, motor driven, vane control. JJ.J90 cfm, *.Mn.. w| F.4 fan ......................................................................... Canadian O-E Co. Ltd S. S hp. ISO V, 1*60 rpm, aqalrral cage ______ . P-d-fan motor .................................................... ..Canadian O-B Co. Ltd lodacad-dnft lane .......................................... Canadian Sirocco Co, Ltd Ono per bolter, motor driven, hydroullc-drlva opted cootrol. SS.SOO cfi^ P.SS-lfL wg Hydraulic drive, eeoop control.......................... Canadian Sirocco Co, Ltd fan ......................................................................... Canadian O-B Co, Ltd COAL AND ASH-NANDLINO EQUIPMENT: Water conditioning (Hall Laboratoriee).Dominion Flow Meter Co Water column....................................................Reliance Gauge Column Co Peodweter control, J-element, alr-opereled................Bailey Meter Co Mechanical equipment and piping far coagulation and Allratleo la- ullatlooa............................ ........................ Robert* filter Ca ef Canada Fllter-ftow-ratlo eontrolltn ....................... Simple* Valve ft Meter Co Arid-, feirtaul.. toda-feedlng equipment. .Robert* Filter Ca of Canada Water eoftener*......................................................... Permutll Co ol Canada li * ft, 6-In. diameter, ill-pel working pretaart Degeilfler ................................................................... Permutlt Co of Canada Deaerating hatter, ono. heriaontal. apray-typa. .Permutlt Ca of Canada 200,000 lb per hr> oxygen net more than 0.0OS ml par Hw Cootlnueoa blowdown..............................................Permutlt Co of Canada Phocphita-faad pump*............................................................Mlllon Ray Ca Blowdown tank .Dominion Bridge Co, Ltd On*i IK-ft dlamatar. *H-I length, ttS-eel worklag praeaura Aeld^toraga tank ................................................Dominion Bridge Co. Ltd Cleerwell pump*, 2, Worthington, 6-atege..............John loglle Co, Ltd Motor-driven, vertlcal-cbeft, daopwal), ISO gpm, SIO-ft head Clearwall-pump motor*............................................U. 8. Electrical Motora I, IS hp, SS0 v, 1*60 rpm, equlrrcl cage ,,,, ,, . , CI*arw*U-pump motor eterter*............................ Cansdleo O-B Co, Ltd Low-pronnro (tad pomp..............................Canadian lnger*oll-Rad Co Ob*, all Iran, t-etaga, motor^drlven, 100 gpm. 650-lt head Feed-pump motor ......................................................Canadian 0-8 Co. Ltd On*. SS bp, SSD v, SS40 rpm, aqulrral tag* Peed.pump motor *tanere..................................... Canadian O-B Co. Ltd' Hlgb*preieur* food pumpa.............................. Canadian Ingereoll-Rind Ca On* turbloa-drlvan and on* motor-driven: Turbloo6Hvn pump: 6-tlage, SM gpm, lt25-fl heed, 9SO rpm Turbin* (to drive feed pump).................... Moot* Steam Turbin* Dlv US bp, etaam condition* ITO-pal thruttla, ^ahauet 91 pel Motor-driven pump : 6-auga, 600-gpm, ITIS-It hand, S4S0 rpm Motor (to drive feed pump)..............................Canadian O-B Co. Ltd 400 bp, SS0 v, 5540 rpm, eqnlrrat cage Mater etarter ......................................................... Canadian O-B Co, Ltd Btlno pump......................................................... Canadian Ingareall-Rand C* One, mator-drlvan. all brent*, 90 gpm, 10-ft bead METERS: Raller-matar and central panala..........................................Bailey Malar Co Bolter maun, attest flowmatere, praeaura and temperature recorder*, feadwatar flowmeter*, blowdown molar*, boller-water-lavel re cordart, boiler-load Indicator*. 10-pt draft gagaa..Bailey Meter Ca ThartBomotar*, induttrial.................... Taylor loetrament Co* of Canada Praeaura gaga*. (Aaberaft)...................... Mechanical Equipment Co. Ltd Turbin* praeaura and tamparatura recorder*.............. Bailey Meter Co Coal conveyor*. t. 99-In. iroughed belle.......... United Steel Carp, Ltd Coal-conveyor motor*................................................ ... O-B Ca, Ltd Cool-conveyer motor atartera................................Canadian O-B Ca, Ltd Du collector* ........................................ Pteelpltitlen Co ol Canada. Lid One par boiler, moltlcona, UJM cfm. S90 P. S-lo. draft Iota Alb conveyor, pneumatic.................................. Teyler Bngrg ft Ceaet Ca Aab-etorage tank. 106-tan cepaclty, tile....Taylor Bngrg A Ceaet Co VALVES, PIPINO AND TRAPS: Safety veto**, bollera.............................. Craeby Steam Oaga ft Valve Co Safety valvaa. (tduead.prauura lloae.......................... Hopklneone, Ltd Honratnin valvaa...................... -....................................... * * * 1" * *v* Blowdown valvaa .............................................. Bdwerde Valve ft Hfg. Ca /Hopklneona, Ltd Hlgb-praecwa valvaa.................................................. ,---^ Crane, Ltd Lcw.praauT* vatvae .................................................... T MtAvhy ft Bona Praseura-feducing velvet, desuparhoatera....Bchuttc ft Xoertlng Co Control* for reducing velvet and detnporbaetera... .Bailey Mater Co Fabricated piping ....................................................................Crane Ca, Ltd Pipe Inaulatlon .................................... Canadian Johnt-ManvUla Co, Ltd Steam trope ........................................ Cenedlen Falrbanke*Moraa Co, Ltd POWER-QENERATINO EQUIPMENT: Turblna-generator...........................................Brown Boverl (Caoedt) Ltd One, SS0Q bw, 1400-rpm bacbpraiaura turbine| throttle canditlone, 600 pel. *00 P. aahauat 1*0 pat Otnereter, 47S0 kva, 6.60 pf. 6900 *, 60 cycle*, l-phate ,, ,,, . , ,.. Air cooler.........................................................Brown Berarl (Ctaada) Ltd Oland condenaar............................................................ Foetar Wheeler. Ltd Switchboard................................................Canadian Waatlnghoua* Co, Ltd Ocnarator oil circuit braakar................ Cenedlen Waatiflgbouae Co. Ltd On*. 950,000-kva Interrupting rating at 7$00 v Generator central, protective equipment and veltag* regulator Canadian Wattlnghoueo Co, Ltd Turbino-room crano.............................. Herbert Marti* Crane A Hoiet Co MISCELLANEOUS: Vectum-cUanlng eyetam...........................................................Shaldan*. .Ltd Initrument and control air cotnprateor......................Gardocr-Daovar Co One, mater driven. 6VisiH vetrical duplet, elnglt-atage, water- cooled. ISS cfm, IM pel as (ml POWER 4 July IW 2ft ApplicoMon of a control rafrrgerollon system to air-conditioning a heavily gloitad I 10-story hotel and a wlndowiess 7-story deportment store means special design Various load combinations ond equip ment scheduling makes above chon Central Refrigeration Handles Load Terrace Plaza Hotel* Cincinnati* sets atop a 7-story depart ment store- Handling air-conditioning loads from many sources* says H C Hoffman, project engineer, Carrier Corp, calls for smart planning, full, effective equipment use, good controls * Put a 10-story hotel on lop of a 7-floor department store and you can expect unusual oir-conditioning appli cation problems. Load voriea'from a low of supplying summer-evening cool ing for hotel rooms only, to the antici pated 1500-ton peak imposed by both store and hotel demands. These demands differ considerably. For example, 4he lower 7-floor section of the building. Fig. 1, Is of windowless construction whereas the 10-floor upper division has a widespread use of gloss. 0et and above the epace differences these present, there are a 400-seat cafeteria and a number of small in- ependent shops in the first floor end basement area*. ' Stagta Refrigeration Source. Central refrigeration for all air-conditioning purposes is supplied by three centrif ugal compressors in the sub-basement Maximum flexibility, with respect to anticipated 1500-ton peak load and the many variations of load, is met by e combination of three different-eiied compressor units, Fig. 2. Electric mo tors drive these three machines (2S0-, 550- and 700-ton units) through gear reducers to supply the desired capacity variation. In addition; drum-controller starters give five balanced points of speed operation on individual com pressors. All three machines through o aeries of interconnections feed a main chilled-water loop. This inter connection permits soy one or ill units to meet the refrigeration load. ' The mein chilled-water loop, a 12-in. line, handlea up to 2400 gpm from two of three 1200 gpm, 60-ft head pumps. From this central supply loop, Fig. 3, separate pumps draw chilled water for either hotel or store loads. Two pumpa of 800 gpm deliver water at an 80-ft heed to the store system. A third aimilar-slsed pump furnishes the hotel needs at again an 80-ft head. Crossconnected piping permits a fourth pump of 800-gpm rating to act as a common standby. Now for the hotel and store systems themselves. Separate supply and re turn lines are used for each--a 10-in. one for the stores and an 8-In. line for the hotel. The load divides about 1000 tons for stores and 500 for hotel. Com pletely separate systems (or these, major divisions of load enable the cen tral refrigeration * system to supply either one load alone or both. A centra) shaft distributes chilled water to the various main air-condition ing (an rooms. These rooms are la the-- FOWfiR July 1948 (593) 69>