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SECTION 6: POTENTIAL FOR HEAD RECOVERY AT MWD CONNECTIONS 15 <br />Figure 2 <br />SA-1 Proposed Configuration <br />Ball Valve <br />New Generator with Motorized <br />FIlo+awr Controller <br />..,.. Nornnalll <br />r rre <br />O <br />New °aerie <br />PUMP POOM ] <br />Motorized <br />M <br />ormally <br />Open <br />1WD P V To Santa Ana <br />Di tr1bution <br />AA , New Construction <br />The original pressure drop was designed for 200 feet, or 87 psi. The actual pressure drop appears to range from <br />217 to 275 feet, or 94 to 119 psi. A turbine should be selected that operates well over this pressure range. For <br />the purposes of this analysis, a single operating pressure differential will be used. The midpoint of the observed <br />pressure ranges is 245 feet, or 106 psi. <br />One potential turbine that could be used in place of the Byron Jackson turbine is a Canyon Hydro In -Line Turbine <br />ILT12-33-9.0. This turbine has a 12-inch supply and discharge pipes in the same configuration as the current <br />turbine, with a vertical axis and the generator mounted above the turbine. A proposal for this turbine generator <br />package is contained in the Appendix. Another proposal is presented for a turbine with a horizontal axis <br />manufactured by Gilkes. In this case the Canyon turbine is less expensive and matches the geometry of the <br />existing installation. <br />The Canyon Hydro turbine curve indicates a mechanical efficiency of 83.5% at the design point of 8 CFS and 245 <br />feet. This implies an electrical output calculated as follows: <br />8,0 ft 2, hp <br />Ll A tT- 3.5% inech. �". <br />e 9'�% elect, . ; ' 0„7 = 132 k <br />sec 55 <br />Through the installation of a new hydro -turbine and generator at SA-1, the output of the generator will increase <br />from 68 kW to 132 kW. This will happen for the 6,645 hours per year that this connection is in use, for an <br />electrical savings of 425,280 kWh per year. Note, the existing turbine is calculated to generate 68 kW x 6,645 <br />hours per year, or 425,299 kWh per year of renewable electricity. <br />'IewWwcoirraltP ,(JCi ur°inll�f�,�lC('0u,u.rraiiw: " 26 — 75 G II�II 112 11�.11 N <br />PREVIEW Date: Nov 03, 2021 Workspace ID: WS00800354 Funding Opportunity Number: R22AS00023 <br />