1 - Alaska Energy Data Inventory

5 l41...j3 2,1r0--£tEV'"1U4S.113e.1. THESE CURVES ARE BASED ON THE FOLLOWING:8. LAKE WSEL : 1022.0 FT. 0CRATER LAKE, SNETTISHAM. HVDRAULIC TRAHSIEHTS - SPHERICAL VALUE 30 SEC CLOSU~£b. TAIL WATER ELEV. = 4.8 FT.PIEZ ELEV AT SPHERICAL VALVE & VALVE ANGLE VS TIME POSHc., ELEV. OF SPHERICAL VALVE. 7.5 FT.(DEG)r->'d. INITIAL FLOW THROUGH SPHERICAL VALVE. 471 CFSJJ' - - r-- - - --- - - ;- - - - -~8. INITIAL TURBINE OUTPUT - 47. 011 HPI ll'::J·5 (BLOCKED OUTPUT) I·~CB1125.lUte.1085.~1070. ,lesS. ,IV10~0. ,leas. t!I1010.9g4.5 ItIIII..)11""-I/I((/II)I~IfV1.),/,/rI f. INITIAL NET HEAD ON SPHERICAL VALVE :~HOIE ae ~0 - PIE ~. EtEV.6.ENERGY ELEVATION AT VALVE MINUSI - -& ELEM Vc - VA VE AHGl ELEVATION OF VALVE = 1008.1 - 7.5 = 1000.6 FT.~ 6.15iif 7.151 -.... ----..~r--V~ I' i'..~~7.o.X 1 0 • 5.D..5g. MINIMUM HYDRAULIC LOSSES2. PROFILES ARE BASED ON DATA FROM COMPUTERPROGRAM·WHAMO-.e 5 10 15 ae as 3e 35 40 45 58 55 68A.ylslon.TIME (SEeS) S,mbol O •• crlpllcna D.'.Apf)r~>I~·dRlI't OF 5 APR 8~ AT 11 ~5az 37CB... - 1-._-IIPIEZOMETRIC ELEVATION AT SPHERICAL VALVE ANDAVALVE ANGLE VS TIMEOO •• I&".d b,~... "",n bw;IUJI.AR ... ", ENGINEER DISTRICTCORPS OF ENG.INEEAS"HcHOHAaE, ALASKA.SNETTISHAM PROJECT, ALASKA:::n,,:> ~ SECOND STAGE DEVELOPMENT1J!l.'m)lCI;>fJlioolf.f\\l~."CRATER LAKE...".,..~ RECOMMENDED PLANHYDRAULIC TRANSIENTSSPHERICAL VALVE CLOSURE I OF II_M. . ..... .t'~;1,~$.:.1&1 AS SHOWN,,,...I~-" , ,~I.l.nc.~.m.. ;:'f(:U:.I;;t-~nuudH.nO.i .. 1 &4 AUO. ,.,~P'f.t':1d -.. ~f f1 C2 1--==---~~~::In, ............ t""Sh •• t_O'_"!!.II! ~;. i.I'I).5 j 4 I 3 i 2 DESIGN MEMORANDUM 26 PLATE 1316tA