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Calculation Cover Sheet <br /> Customer NCPA Proj No 52007002 <br /> Project Title Lodi Expansion Combined Cycle Project Calc No LODI-0-DC-510-ME-0002 <br /> Calculation Title NCPA Lodi Water Balance Calculation Phase/CTR <br /> Elec File Location <br /> Project File Location Page 2 of 2 <br /> Rev Date By Checked Rev Date By Checked <br /> C 8-Jul-08 S.Stern M.Pelletier D 20-Aug-08 S.Stern M.Pelletier <br /> Duct Burning Evaporative Dry Bulb Relative Wet Bulb <br /> Case(Heat Balance Case) Status Cooler Status Temperature °F Humidity(%) Temperature°F <br /> Case 1 Annual Average OFF ON 61.2 66.8 54.8 <br /> Case 2 Summer Typical OFF ON 94.0 27.5 68.9 <br /> Case 3 Summer Maximum OFF ON 107.7 18.2 72.9 <br /> Case 4 Winter Typical OFF OFF 32.6 74.0 29.7 <br /> Case 5 Winter Minimum OFF OFF 23.7 81.0 22.1 <br /> Case 6 Summer Maximum (Fired) ON ON 107.7 18.2 72.9 <br /> Flow rates are daily average values in gpm <br /> Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 <br /> Summer <br /> Stream Annual Summer Summer Maximum <br /> No. Stream Description Average Typical Maximum Winter Typical Winter Minimum (Fired) <br /> 1 Influent from WWTP 856 1196 1351 657 586 1528 <br /> 2 Potable Ground Water Well Inlet 1 1 1 1 1 1 <br /> 4 Eye Wash/Safety Shower/Drinking Water 1 1 1 1 1 1 <br /> 6 CTG Evaporative Cooler Makeup 11 40 54 0 0 54 <br /> 7 CTG Evaporative Cooler Blowdown 2 7 9 0 0 9 <br /> 8 CTG Evaporative Cooler Evaporation 9 33 45 0 0 45 <br /> 9 Micro-Filtration Feed 1008 1393 1569 783 704 1784 <br /> 10 Micro-Filtration Blowdown 101 139 157 78 70 178 <br /> 11 Micro-Filtration Filtrate 907 1254 1413 705 633 1606 <br /> 12 Clarifier Feed 846 1186 1341 647 576 1518 <br /> 13 1st Pass RO Feed 103 108 110 101 102 137 <br /> 14 1 st Pass RO Reject 26 27 27 25 25 34 <br /> 15 1 st Pass RO Permeate 77 81 82 76 76 103 <br /> 16 Cooling Tower Feed 804 1146 1303 603 532 1469 <br /> 17 2nd Pass RO Feed 35 34 34 35 35 42 <br /> 18 2nd Pass RO Reject 3 3 3 4 4 4 <br /> 19 2nd Pass RO Permeate(EDI Feed) 31 31 31 32 32 38 <br /> 20 EDI Product 28 28 27 28 28 34 <br /> 21 EDI Reject 3 3 3 3 3 4 <br /> 25 Wastewater to Injection Well 103 143 161 80 72 183 <br /> 26 HRSG Cycle Makeup 28 28 27 28 28 34 <br /> 27 HRSG Unrecovered Losses 3 3 3 3 3 3 <br /> 28 HRSG Sampling Losses 5 5 5 5 5 5 <br /> 29 HRSG Blowdown (before cooling) 20 20 20 21 21 26 <br /> 30 HRSG Blowdown (after cooling) 48 47 46 48 48 60 <br /> 31 HRSG Vent Flashing Losses 18 18 18 18 18 23 <br /> 32 HRSG Blowdown Quench Water 41 40 39 41 41 52 <br /> 34 Plant Washwater 10 10 10 10 10 10 <br /> 35 Oil-Water Separator Effluent 11 11 11 11 11 11 <br /> 36 Cooling Tower Evaporation 788 1091 1229 611 548 1394 <br /> 37 Cooling Tower Drift 0.3 0.3 0.3 0.3 0.3 0.3 <br /> 38 Cooling Tower Blowdown 197 272 307 152 137 348 <br /> 39 Blowdown RO Pre-Filter Waste 10 14 15 8 7 17 <br /> 40 Blowdown RO Feed 1 187 259 292 145 130 331 <br /> 41 Blowdown RO Reject 93 129 146 72 65 165 <br /> 42 Blowdown RO Permeate 93 129 146 72 65 165 <br /> 43 Clarified Water 984 1377 1557 754 672 1764 <br /> 44 Filtered Water 955 1336 1511 731 652 1711 <br /> 45 Gravity Filter Backwash 39 55 62 30 27 71 <br /> 46 Clarifier Sludge Blowdown 30 43 48 23 21 55 <br /> 47 Clarifier Decant 21 30 34 16 15 38 <br /> 48 Thickener Sludge Blowdown 9 13 14 7 6 16 <br /> 49 Filter Press Filtrate 7 10 121 6 5 13 <br /> 50 Filter Cake 1.8 fi 2.6 0 2.91 1.41 1.2 3.3 <br /> 51 Clarifier Recycle 68 46 jL 122 <br /> Notes Design Values CTG Evaporative Cooler COC 6 <br /> Micro-Filtration Blowdown 10% <br /> Clarifier Sludge Blowdown 3% <br /> Gravity Filter Backwash 4% <br /> Thickener Sludge Blowdown 30% <br /> Filter Press Solids 20% <br /> 1 st Pass RO Reject %of Feed 25% <br /> 2nd Pass RO Reject(%of Feed) 10% <br /> EDI Reject(10%of Feed Flow) 10% <br /> Number of HRSG 1 <br /> Number of Evaporative Coolers 1 <br /> Quench Water= HRSG blowdown X factor 2.00 <br /> Unrecovered HRSG Losses %of HRSG Feed 10% <br /> Blowdown Vent Flash Loss %of HRSG BD 40% <br /> Steam requirement 65% <br /> Circ Water COC 5 <br /> HRSG Blowdown %of HRSG Steam Outlet Flow 2% <br /> Density of water at 87F(Ib/gal) 8.3077 <br /> Drift%of Circ Water Flow(gal/min) 0.0005% <br /> RO Pre-Filter Waste 5% <br /> Blowdown Sidestream RO Reject(%of Feed) 50% <br /> Clarifier Sludge 1%of Clarifier Feed 1% <br /> Clarifier Liquid 100%-Clarifier Sludge% 99% <br /> Filter Press Solids Moisture Content 10% <br /> FIGURE 2.1-513 <br /> WATER BALANCE CALCULATIONS <br /> LODI ENERGY CENTER <br /> Source:Worley Parsons LTD, LODI-0-DC-510-ME-0002D,08-20-08 LODI, CALIFORNIA <br /> EY062008001SAC Figure_2_1-5B.ai 08.27.08 tdaus CH2MHILL <br />