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1 - Alaska Energy Data Inventory

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5 I 4 I 3 I 2 1I DESIGN TANK ITOT AL VOLUME OF AIR CHAMBER SURGE TANK FOR THESE PLOTS = 65.508 FT3RESERVOIR ELEVATION = 820 FTD~ I830 46--H820V--0 40RE /"'..810 SLEf\.. /36/E'\pV 800 QUIESCENT LEVEL 0A = 793.4\ /V~30TE790R0~N26780 / ININ 20770 LTHF 0E I16760 UEST\ IA750 N10\ /DC S740\11 MIN. HYDRA LlC GR DIENT LEV. = 734.46 C730 00 20 40 60 80 100 120 140 160 180 200 0 20 40 60 80 100 120 140 160 180 200TIME IN SECONDSELEVATION OF HYDRAULIC GRADIENT VS. TIMETH£ IN SECONDSTURBINE OUTPUT VS. TIMEDf--f--r--168.6SU 168.6R 168.4F168.3 /'\ QUIESCENT LEVEL = 168.04A/ 1\ IIB C 168.2EB168.1 \ I-:::----..E 168L167.9 ~EV 167.8 IA167.7 I NOTES:TI 167.6 I1. PROFILES ARE BASED ON DATA FROM THE COMPUTER PROGRAM0 "MSURGE" AS MODIFIED TO ANALYZE AIR CHAMBER SURGE TANKS.IN 167.6"-,,,1.1__I2. MAXIMUM HYDRAULIC LOSSES WERE ASSUMED IN THE POWER167.4 CONDUIT. S,.mbol o..criptlon. Da,. Appro,,""IN 167.3 L3.\ I~;';.~':,At!rLI,~ ~~~~~M1Ln r,.'ttPs~~1 ~USN~~~ ~ElDWA~~,1 ~LROATDW~T167.2 IN THE SURGE CHAMBER DUE TO THE ABSENCE OF AN ORIFICE.F \ IE 167.14. SEE PLATE _ FOR TURBINE CHARACTERISTICS FOR DEMANDE 167 \ ICONDITION.f--T \lMIN WATEf SURFA E ELE . - 166 905. MINIMUM POOL (820 FT) AND MAXIMUM TAILWATER (".4 FT) WERE166.9ASSUMED.166.86. AIR VOLUME AT START OF DEMAND CONDITION IS 50.S63 FT .U.S. ARMY ENGINEER DISTRICT0 20 40 60 80 100 120 140CORPS OF ENGINEERS160 180 200 7. THE POWER CONDUIT CONSISTS OF AN " FT. NOMINAL DIAMETERANCHORAGE, ALASKAPOWER TUNNEL AND A 6 FT. DIAMETER STEEL PENSTOCK.TI ME I N SECONDSo.slilnedbW-lSNETTISHAM PROJECT. ALASKAA :Jr-.!:J m SECOND STAGe DEVELOPMENT AWA TER SURFACE ELEVATION VS. TIME ..-_"- Dr.wn by: CRATE! LAKE"'11K ...AL TERNA TIVE PLAN 1\1AIR CHAMBER SURGE TANKc ~ • ~1: LOAD DEMAND PROFILESacele:~b"AS SHOW.5_''.L~"~M~~"""" D •••:""'. A~l~ . .. ~ ,.. af!-I... AUG. 17,,",wingCcNIe: 1~t ____ref.renee" ... mber:..... __ 0. __5 1 4 I 3 1 2 \ DESIGN MEMORANDUM 26 PLATEB25tf--

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