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Hydro Turbines Generate Power from Excess Head

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CORNELL PUMP COMPANY HYDRO TURBINES GENERATE POWER FROM EXCESS HEAD EFFICIENT BY DESIGN CORNELL HYDRO TURBINES PUT EXCESS HEAD TO WORK FOR YOU per minute can produce useable energy. Cornell’s high Industrial plants, municipalities, HVAC installations, and turbine efficiency is often found to be comparable with farms are tapping potential hydraulic energy sources specially-built imported turbines. They are less complex, to produce electric power as a revenue source, or as a easier to install and require less maintenance. Cornell means to reduce overall energy demands. The key to turbines are available in a wide range of configurations the system is the use of excess head to drive a turbine. and mounting styles. Cornell’s approach to turbine The turbine may be used to drive a pump, a generator, applications has generated many new and innovative or other power-requiring device. This technology makes design features, resulting in unexpectedly high it feasible for cities, farmers, resort managers, industrial performance. plants and building managers to consider hydro turbines CORNELL SUPPORT FROM THE START in their plant power needs. Studies show that a turbine, This high performance can be documented by actual driven by water from a natural stream or process performance tests on ordered units, conducted in stream, can generate enough electric power to pay for Cornell’s modern hydraulic lab under controlled itself in a short time. conditions, by professional engineers. Let Cornell staff LOW-MAINTENANCE, engineers and sales staff provide specialty application HIGH EFFICIENCY DESIGNS and selections assistance. Whether your needs are demanding, requiring turbines in series or parallel, or You don’t need a raging river to take advantage of the utilize a single unit, Cornell will assist in your selection of energy savings a Cornell hydro turbine can provide. a hydro turbine. Heads as low as 50 feet, and flows as low as 90 gallons TYPICAL CONFIGURATIONS CORNELL GENERATOR TYPES CONTROLS INDUCTION Hydro turbines need to be equipped with a control The generator must be connected to an existing valve at the inlet of the turbine. This valve serves as an power grid. The speed is controlled by virtue of being isolation device and can be used to control the head and connected to the grid, the same way motor speed is flow through the turbine. The controls should include maintained. It requires an automatic disconnect from speed measuring devices. The control system should the grid for when grid power fails. be designed so that during normal operation electrical SYNCHRONOUS contact is made or broken at or near the generator nominal (no load) speed. When power fails, the control The generator is stand alone. It can be used where there system must break the electrical contact and close is no electrical grid nearby. It requires a load controller the inlet valve. It is advisable to contact your utility to (not provided by Cornell) to maintain standard speed, determine if there are any special requirements. voltage and phase. PRESSURE SURGE (WATER HAMMER) PROTECTION During grid power loss, a reaction turbine speeds up and the flow through it drops. The magnitude of the flow change depends on the turbine’s design and the operating conditions. The flow change may occur very rapidly (in a few seconds) and can cause a pressure surge (water hammer) that is strong enough to damage or destroy the turbine and piping. The pressure surge can be reduced by: Adding mass in the form of a flywheel Installing a quick opening bypass valve in parallel with the turbine A municipal installation of a 6TR2 using control valves on the turbine lines to throttle the water pressure and regulate power generation. CORNELL HYDRO TURBINES STANDARD TURBINE CONSTRUCTION Turbine Cast Iron, Bronze fitted is standard. Body Ductile Iron, Steel, Bronze, or Stainless Steel models also available. Seal Mechanical shaft seal is standard, packing is optional. Generator Standard ODP generator-optional TEFC. CLOSE-COUPLED, DOUBLE ENDED This assembly allows the turbine to reduce a pumping load. The pump and turbine share a common motor, with the turbine one end and the pump on the other. Both are close-coupled, with all the features to suit a special installation. Especially suited to HVAC installations. CLOSE-COUPLED FRAME-MOUNTED WITH GENERATOR A close-coupled design is the simplest of assemblies. A frame-mounted turbine can be coupled to a generator There is no coupling to align and it saves space. and assembled on a fabricated steel base. Available only with induction generators. HYDRO TURBINES CORNELL SIDE-BY-SIDE BELT DRIVE CLOSE-COUPLED VERTICAL WITH When space does not allow for a standard frame mount CUSTOM DRAFT TUBE unit, it may be possible to belt drive the generator. For added space saving or simplicity of manifolding, close-coupled, vertical mount with custom draft tube (available less draft tube for discharge manifold mounting). FRAME MOUNT DRIVING A PUMP CLOSE-COUPLED VERTICAL WITH BASE Especially useful when a low head, high flow water ELBOW source is available to provide power for a pump moving When floor space is at a premium, a vertical unit may be water to a higher elevation. the best option. CORNELL HYDRO TURBINES HYDRO TURBINE DATA WORKSHEET (for Preliminary Evaluation) PROJECT NAME CONTACT NAME ADDRESS PHONE EMAIL SITE INFORMATION WATER SOURCE STREAM RESERVOIR (USES ENTIRE SYSTEM HEAD) NET HEAD GROSS HEAD (INCLUDES FRICTION AVAILABLE FLOW (STATIC) LOSS) PENSTOCK DIAMETER PENSTOCK LENGTH PRESSURIZED SYSTEM (PRESSURE REDUCTION) OUTLET PRESSURE INLET PRESSURE DESIGN FLOW REQUIRED ELECTRICAL CHARACTERISTICS INDUCTION (GRID INTERFACE) ODP MOTOR TYPE SYNCHRONOUS (STAND-ALONE) TEFC THREE 60 HZ VOLTAGE PHASE CYCLES (HERTZ) SINGLE 50HZ Complete this form online at www.cornellpump.com/hydro-turbine-worksheet for evaluation by Cornell staff. Two units in parallel between an inlet manifold above and outlet manifold below. HYDRO TURBINES CORNELL TURBINE SELECTION CHART - 00 RPM 500 00 kW SHOWN ASSUMES APPROXIMATE EFFICIENCY 00 00 T T T T T - T T HEAD IN FEET T - T 00 T kW 0 T T T - T 0 T 0 - T T T T 60 kW - T T 50 T kW T 0 TA kW T 0 . kW kW TA T kW 0 5 .5 . .5 .6 . 1 2 3 4 5 6 7 8 9 0 0 5 CUBIC FEET PER SECOND TURBINE SELECTION CHART - 00 RPM 000 00 00 kW SHOWN ASSUMES APPROXIMATE EFFICIENCY 00 600 500 00 - T T T T T T T 00 T T - T HEAD IN FEET T kW T T 00 - T T T - T T T kW T T 00 - T 0 TA T kW 0 0 - T T T 60 TA kW - T T kW - T T 50 0 kW . kW kW kW 0 .5 . .5 .6 . 1 2 3 4 5 6 7 8 9 0 0 5 CUBIC FEET PER SECOND MARKET AND PRODUCT LINE CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY AGRICULTURE FOOD PROCESS INDUSTRIAL MINING MUNICIPALITIES WATER TRANSFER REFRIGERATION DURAPRIME PUMPS IRRIGATION AND MANURE PUMPS HYDRAULIC FRACTURING / FOR OIL & GAS APPLICATIONS FOR GENERAL APPLICATIONS EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN AGRICULTURE FOOD PROCESS INDUSTRIAL MINING MUNICIPAL WATER REFRIGERATION CONSTRUCTION TRANSFER CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL N SERIES PUMPS SLURRY PUMPS SLURRY PUMPS MANURE PUMPS SELF-PRIMING PUMPS V-SERIES PUMPS MX SERIES FOR SOLIDS HANDLING HEAVY DUTY SM SERIES CUTTERSOLUTIONS TOPUMPS PLUGGING PROBLEMS STX, STL & STH SERIES FOR MEDIUM DUTY APPLICATIONS HIGH HEAD PUMPS INDUSTRY LEADING EFFICIENCY WITH CYCLOSEAL® SYSTEM IMAGE COURTESY OF PUCK CUSTOM ENTERPRISES EFFICIENT BY DESIGN EFFICIENTEFFICIENT BY BYDESIGN DESIGN FIVE-YEAR EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN EFFICIENT BY DESIGN WARRANTY SLURRY SLURRY SM MANURE CUTTERS SELF PRIMING V SERIES MX SERIES N SERIES CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY CORNELL PUMP COMPANY Q-MAX END GUN CD4MCu ™ ® HYDRAULIC SUBS IMMERSIBLE RUN-DRY PRIMING SYSTEMS® CYCLOSEAL HIGH FLOW, LOW HEAD PUMPS BOOSTER PUMP FOR CORROSIVE & ABRASIVE APPLICATIONS REDI-PRIME AND VENTURI PRIME PATENTED LONG LASTING, LEAK-FREE FLUSHLESS SEALING SYSTEM FOR CENTER PIVOT IRRIGATION STANDARD SPECIFICATIONS • Models Available - 4NNT, 6NNT, 8NNT, etc. • Discharge Sizes Available - 4 to 8 inch • Standard Construction - Cast Iron, Class 30 • Optional Construction - 316SS, CD4MCU, Ductile Iron THE IMMERSIBLE MOTOR CONCEPT: • Permco hydraulic drive Immersible motors are designed to be used in dry-pit applications where there is a possibility of flooding. Why take a submersible motor that was FEATURES BENEFITS designed to run submerged 100% of the time and modify it to run in air 99% (or most of the time) and submerged 1% of the time (in case of a • Various adaptor plates available for hydraulic motor fit flood)? This seems backwards. The correct approach is to take a TEFC • Heavy duty shaft / bearing frame assembly motor that is designed to run in air 100% of the time and adapt it to run • Heavy duty “wet end” construction submerged 1% of the time (in case of a flood). • Manufactured in the United States IMMERSIBLE MOTOR BASIC DESIGN: The basic design of the immersible pump/motor incorporates a premium PERFORMANCE CHARACTERISTICS efficient, inverter duty, P-Base or C-Face TEBC motor (totally enclosed, blower cooled). The motor, as the name implies, is totally enclosed • Premium Hydraulic Efficiencies, 76 to 80% BEP and cooled by a blower on top of the motor.
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