1 - Alaska Energy Data Inventory

5 4 I 3 I 2 1 II THS TANK IS STABLE BUT LESS lHAN DESIGN SIZE~T RE~'FOR DESIGN ] 1DESIGN TANK 1SIZE OF AIR CHAMBER SURGE TANK FOR THESE PLOTS: SIZE OF AIR CHAMBER SURGE TANK FOR THESE PLOTS: NOTES:AIR VOLUME - 40,000 CF AIR VOLUME - 51,000 CF I. PROFILES ARE BASED ON DATA FROM THE COMPUTER PROGRAMWATER VOLUME- 14,508 CF WA TER VOLUME = 14,508 CF "MSURGE" AS MODIFIED TO ANALYZE AIR CHAMBER SURGE TANKS ..TOTAL VOLUME - 54,508 CF TOTAL VOLUME = 65,508 CF 2.. MINIMUM HYDRAULIC LOSSES WERE ASSUMED IN THE POWER CQN-SAFETY FACTOR FOR STABILITY = 40,000/34,000 = 1. 18 SAFETY FACTOR FOR STABILlTY= 51,0001 34,000 = 1.50 QUIT FOR AN II FT NOMINAL DIAMETER POWER TUNNEL AND 6 FT0DIAMETER STEEL PEN STOC K0821 820 3. SEE PLATE 822 FOR TURBINE CHARACTERISTICS FOR STABILITy,-- 1C820 4 PROFILES ARE BASED ON STABILITY CONDITION "A" WHICH IS THEE E 819 MOST CRITICAL CONDITION AND IS REPRESENTED BY A SMALL LtJAOL L INITIAL HYDRAULICCHANGE AS FOLLOWS'E 819 EV 1\GRADIENT ELEVATION~V ATTIME=OSA~I'..."/1 fIA 818 818.06 TURBINE OUTPUT: 40,700 H PT 818 T TURBINE EFFICIENCY" 0 92I1\00TA.ILWATER ELEV. '" 11.4 FTN 1\ 11\ /\ /\ / 1'1N I~ f\ 1(\ /817.18I\A lrv" ~TURBINE NET HEAD'" 800.0 FT817 817IV V \ I) fJ IJ 'J "JIV 'J v7CONDITiONSRESERVOIR ELEV ;:0 831 9 FT f--AT TIME ;:0 4STURBINE OUTPUT = 41,500 HPNVN TURBINE EFFICIENcy = 091816FV F 816~ /E E VQUIESCENT HYDRAULIC GRADIENTEEJT 815 TELEVATION AFTER LOAD CHANGERESERVOIR ELEV = 831. 9 FTTAILWATER ELEV '" 11.4 FT815814 C813 8140 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000TIME IN SECONDSELEVATION OF HYDRAULIC GRADIENT VS. TIMETlME IN SECONDSELEVA TION OF HYDRAULIC GRADIENT VS TIME,--,---BSSUUR 168.48 R 168.48F FINITIAL WATERAASURFACE ELEVATION"'.C 168.47 C 168.47BEEA ~n I\",E~168.46168.460168.46EL n ~ AL A hI f\ 1\Ef\ rE 168.45 "V 168.46 1\ VAi\ /\ 1/\/ 1\1\ Vvr V\ f \ UV i\Tv 1/ \/ A 'JT T 168.44I 168.44 IV IJ0IV V 11-V 0NN 168.43IVIVI168.43Symbol D •• cl"ipUons 0.,. ApprovedI I 168.42 V f--f-- N N QUIESCENT WATER SURFACE IIF168.42F 168.41EEE 168.41 ET T 168.4ELEVATION AFTER LOAD CHANGE168.4 168.390 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000ATIME IN SECONDS TIME IN SECONDSCORPS OF ENGINEERSANCHORAGE, ALASKAIOeslgned by:SNETTISHAM PROJECT. ALASKA:}"N"J 1m SECOND STAGE DEVELOPMENTus Arrrrr CCII'P&CRATER LAKEAIoil"" .........WATER SURFACE ELEVATION VS TIME WATER SURFACE ELEVATION VS. TIME Or.wn by:,JKl_168.445m1rr1.'tfY..~Aevlslonsu.s. ARMY ENGINEER DISTRICTAL TERNA T1VE PLAN IIIAIR CHAMBER SURGE TANKSTABILITY PROFILES II OF II~bY:Scal ..: She .. tAS SHOW"referencenumber:CH.U. •• "'~"'oo, ...."', aate:84 AUG. 17A7l~"'"'H.'..... ~ Code:Drawing'~1-