CORNELL PUMP COMPANY
HYDRO TURBINE
EFFICIENT BY DESIGN
HYDRO TURBINE
Industrial plants, municipalities, HVAC installations, and
farms are tapping potential hydraulic energy sources to
produce electric power as a revenue source, or as a means
to reduce overall energy demands. The key to the system is
the use of excess head to drive a turbine. The turbine may be
used to drive a pump, a generator, or other power-requiring
device. This technology makes it feasible for cities, farmers,
resort managers, industrial plants and building managers to
consider hydro turbines in their plant power needs. Studies
show that a turbine, driven by water from a natural stream or
process stream, can generate enough electric power to pay
for itself in a short time.
You don’t need a raging river to take advantage of the energy
savings a Cornell hydro turbine can provide. Heads as low as
50 feet, and flows as low as 90 gallons per minute can produce
useable energy.
Cornell’s high turbine efficiency is often found to be
comparable with specially built imported turbines. They are
less complex, easier to install and require less maintenance.
Cornell turbines are available in a wide range of configurations
and mounting styles.
Cornell’s approach to turbine applications has generated
many new and innovative design features, resulting in
unexpectedly high performance.
The simplest of assemblies – no couplings to align
– economy of space – close coupled, induction
generator/turbine assembly – many turbine and
generator options available as required.
Frame turbine, coupled to an induction generator for
applications connected to an existing power grid. Base
assembled with optional speed control and safety shut
down equipment.
An assembly to allow the turbine to reduce a
pumping load – common motor, turbine one end,
pump other end. Both close coupled with all the
features to suit a special installation. Specially
suited to HVAC installations.
HYDRO TURBINE
Cornell Pump Company
Sunrise Corridor Business Center
16261 S.E. 130th Avenue
Clackamas, Oregon 97015
(503)653-0330
(503)653-0338
HYDRAULIC TURBINE DATA WORKSHEET
(for Preliminary Evaluation)
Project Name _________________________
Name _________________________________________
Address __________________________________________
Phone
__________________________________________
Email
__________________________________________
SITE INFORMATION
STREAM or RESERVOIR (uses entire system head)
Gross head (static) ___________________
Net head (includes friction loss) ______________________
Available Flow __________________
Penstock Diameter ______________
Penstock Length____________
PRESSURIZED SYSTEM (pressure reduction)
Inlet Pressure ________________
Outlet Pressure Required________________
Design Flow ___________________
ELECTRICAL CHARACTERISTICS
Induction (grid interface) or Synchronous (stand alone)
____________________________
Voltage _________________
Cycles (Hertz) ____________
Phase ___________
ODP or TEFC ________________
HYDRO TURBINE
Generator Types
Induction
Generator must be connected to an existing power grid. Speed is controlled by virtue of being connected to
the grid, the same way motor speed is maintained. Requires an automatic disconnect from the grid when grid
power fails.
Synchronous
Generator is stand alone. Can be used where there is no electrical grid nearby. Requires a load controller to
maintain standard speed, 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
Controls
Hydraulic turbines need to be equipped with a control valve at the inlet of the turbine. This valve serves as
an isolation device and can be used to control the head and flow through the turbine. The controls should
include speed measuring devices. The control system should be designed so that during normal operation
electrical contact is made or broken at or near the generator nominal (no load) speed. When power fails, the
control system must break the electrical contact and close the inlet valve. It is advisable to contact your utility to
determine if there are any special requirements.
HYDRO TURBINE
Standard Turbine Construction:
• Cast Iron, Bronze fittings - optional, Ductile Iron, Steel,
Bronze, Stainless Steel.
• Mechanical shaft seal is standard, packing is optional.
• Standard ODP generator-optional TEFC.
• Hydro blue, double applied paint.
This high performance can be documented by certified model tests or
actual performance tests on ordered units, conducted in Cornell’s modern
hydraulic labs under controlled conditions, by professional engineers. Let
Cornell staff engineers and sales personnel provide specialty application
and selections assistance. Whether your needs are demanding – requiring
turbines in series or parallel, or utilize a single unit – Cornell will assist in
your selection of a hydro turbine energy recovery system that is efficient
over a wide range of operation.
For added space saving or
simplicity of manifolding, close
coupled, vertical mount with
custom draft tub (available less
draft tub for discharge manifold
mounting).
Synchronous generator for stand-alone
applications with hydraulic-electric load
controller, belt (or direct) drive to turbine,
all base assembled.
Horizontal frame mounted turbine, direct drive to an
energy requiring device. (Turbine driving a pump is
shown. A generator may be substituted for the pump.)
Vertical mount, close coupled
turbine with optional integral
flywheel* and base elbow. (Also
available without flywheel)
*Flywheels are used to prevent
excessive surge pressures and to give
more stable speed control
HYDRO TURBINE
APPROXIMATE PERFORMANCE RANGE
700
600
500
400
300
PELTON TURBINES
HEAD IN FEET
200
100
90
80
70
REACTION TURBINES
60
50
40
30
20
.1
.2
.3
.4
Reaction Turbine
.5
.6 .7 .8 .9 1
2
3
4
5
6
7 8 9 10
20
CUBIC FEET PER SECOND
• High efficiency compared to Pelton Turbines.
• Works when positive outlet pressure is
required, good for force mains.
• Fixed geometry – best for fixed flow rates,
does not handle variable flow well.
• May require flywheel or quick opening bypass valve to prevent excessive pressure
spikes in the event of grid loss.
• Costs less than Pelton Turbines.
Pelton Turbine
• Must exhaust to atmosphere – not appropriate
for force mains, NPDH is not an issue.
• Adjustable nozzles allow for variable flow,
efficiency remains fairly constant.
• No flywheel or quick opening by-pass valve is
required in the event of grid loss because the
flow is diverted away from the runner.
• Costs more than Reaction Turbine.
HYDRO TURBINE
TURBINE SELECTION CHART
1800 RPM
1000
900
800
700
kW SHOWN ASSUMES
APPROXIMATE EFFICIENCY
600
8T
R3
6T
R3
6T
R2
R1
5T
3T
1
200 kW
100 kW
10
A
20 kW
4T
R5
5T
R5
R5
3T
1/
2-
1-
2T
1/
R5
4T
2T
R5
R5
TR
1-1
1
/2
TR
5
6T
R1
5T
R1
A
2-1
/2
TR
R5
2T
10
R1
5T
TR
2
6T
R2
4T
R1
4T
R1
1/
100
90
80
70
350 kW
5T
R2
3T
11/
2
200
1-
HEAD IN FEET
TR
1
R2
4T
21/
2
R4
TR
2
300
60
R4
R3
5T
5T
R4
4T
R3
400
3T
R3
21/
2
TR
3
500
50 kW
50
1 kW
40
30
.15
.2
.3
2.5 kW
.4
.5
5 kW
.6 .7 .8 .9 1
10 kW
2
3
4
5
6
7 8 9 10
20
25
CUBIC FEET PER SECOND
Cornell Pump Company
CORNELL
•
Portland, Oregon
1800 RPM
TURBINE SELECTION CHART
1200 RPM
500
kW SHOWN ASSUMES
APPROXIMATE EFFICIENCY
400
R3
8T
6T
R4
R4
4T
2T
1/
TR
2
1/
6T
4T
R2
R1
11/
6T
5T
4T
R3
R2
R2
3T
R2
2-
R1
2T
100 kW
10
R1
5T
R5
50 kW
2.5 kW
4T
R5
30
5T
R5
A
10
TR1
5T
R1
A
1 kW
40
6T
R1
5T
50
3T
2-
R1
1/
60
2T
R1
2T
R1
1-
HEAD IN FEET
100
90
80
70
R4
5T
4T
R2
2-
5T
1/
2
3T
TR
R3
3
R3
200
R3
300
20 kW
10 kW
5 kW
20
15
.15
.2
.3
.4
.5
.6 .7 .8 .9 1
2
3
4
5
6
7 8 9 10
20
CUBIC FEET PER SECOND
CORNELL
Cornell Pump Company
•
Portland, Oregon
1200 RPM
25
MARKET AND PRODUCT LINE
CORNELL PUMP COMPANY
AGRICULTURE
CORNELL PUMP COMPANY
CHOPPER
FOOD PROCESS
CORNELL PUMP COMPANY
CUTTER PUMPS
MUNICIPALITIES
MINING
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
HYDRAULIC SUBS
CORNELL PUMP COMPANY
CORNELL PUMP COMPANY
END GUN
BOOSTER PUMPS
REFRIGERATION
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
MINE DEWATERING
INDUSTRIAL
CORNELL PUMP COMPANY
CORNELL PUMP COMPANY
CORNELL PUMP COMPANY
INDUSTRIAL
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
AGRICULTURAL
CORNELL PUMP COMPANY
CORNELL PUMP COMPANY
FOOD PROCESS
MUNICIPAL
CORNELL PUMP COMPANY
IMMERSIBLE
CORNELL PUMP COMPANY
HYDRAULIC FRACTURING
EFFICIENT BY DESIGN
REFRIGERATION
CORNELL PUMP COMPANY
HYDRO TURBINE
WATER TRANSFER
CORNELL PUMP COMPANY
MANURE
WATER TRANSFER
CORNELL PUMP COMPANY
MP SERIES
MINING PUMPS DESIGNED FOR COARSE ABRASIVES
FOR CENTER PIVOT IRRIGATION
STANDARD SPECIFICATIONS
THE IMMERSIBLE MOTOR CONCEPT:
• Models Available - NNT, NNT, NNT, etc.
• Discharge izes Available - to inch
• tandard Construction - Cast Iron, Class 0
• ptional Construction , CD MC , Ductile Iron
• 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 designed to run
submerged 100% of the time and modify it to run in air 99% (or most of the time) and
submerged
of the time (in case of a flood) This seems backwards. The correct
approach is to take a T FC motor that is designed to run in air 00 of the time and
adapt it to run submerged
of the time (in case of a flood).
FEATURES BENEFITS
Immersible Motor Basic design:
The basic design of the immersible pump motor incorporates a premium efficient,
inverter duty, P- ase or C-Face T C motor (totally enclosed, blower cooled). The
motor, as the name implies, is totally enclosed and cooled by a blower on top of
the motor. If the motor becomes submerged, the blower motor fan shuts down
without affecting the main motor. While the motor is temporarily submerged,
the media cools the motor just like a true submersible. A special conduit box
is used to prevent water leakage into the motor. The motor is designed to
prevent infiltration of water along the shaft and into the motor by utilizing a
triple redundant sealing system, including a patented Hydroseal design. The
motor-end bell housing incorporates the inverted cup’ principle, which traps
an air bubble under the motor as water rises, thus keeping water away from
the shaft seal. The shaft is fitted with a hydroseal, which expells water and
further reduces the chance
of water reaching the shaft
seals.
• arious adaptor plates available for hydraulic motor fit
• Heavy duty shaft bearing frame assembly
• Heavy duty wet end construction
• Manufactured in the nited tates
PERFORMANCE CHARACTERISTICS
• Premium Hydraulic fficiencies,
to 0
• inch or larger solid handling capability
• Total Dynamic Head 50 to 0 feet
• Capacity 00 to 000 PM
P
TYPICAL MARKETS
• eneral Agriculture, Industrial and Municipal Applications
• Rental Applications
• Mining Applications
• Flood Control Applications
• Construction Dewatering Applications
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
EFFICIENT BY DESIGN
The Immersible motor
can withstand up to 30
feet of submergence depth
for a two-week period. This
exceeds the requirements
of Immersible motors that
is described in the industry
standard Index of Protection
IP . Competive designs only allow
immersion of the motor for a period
of time not exceeding 0 minutes at
a submergence level of feet. Hardly
enough time to deal with any kind of flooding
emergency!
C RN
CHOPPER
CUTTER
MX SERIES
CORNELL PUMP COMPANY
EDGETM
OIL & GAS
CORNELL PUMP COMPANY
HYDRAULIC SUBS HYDRO TURBINE
P MP C MPAN
0
A
CORNELL PUMP COMPANY
CORNELL PUMP COMPANY
EFFICIENT BY DESIGN
R
SLURRY PUMPS
CORNELL PUMP COMPANY
ENHANCED SELF-PRIMING PUMPS
AND VENTURI PRIME
EFFICIENT BY DESIGN
0th A C AC AMA ,
R D
IMMERSIBLE
STX SERIES
REDI-PRIME®
RI HT R
MANURE
MP SERIES
CORNELL PUMP COMPANY
SUBMERSIBLES
EFFICIENT, RELIABLE, TROUBLE-FREE.
INDUSTRY LEADING
EFFICIENCY WITH
CYCLOSEAL® SYSTEM
FIVE YEAR
WARRANTY
EFFICIENT BY DESIGN
MX SERIES
EFFICIENT BY DESIGN
OIL & GAS
EFFICIENT BY DESIGN
REDI-PRIME
EFFICIENT BY DESIGN
STX SERIES
EFFICIENT BY DESIGN
SLURRY
EFFICIENT BY DESIGN
SUBMERSIBLE
Cycloseal®, and Redi-Prime® are Registered Trademarks of Cornell Pump Company.
Cornell pumps and products are the subject of one or more of the following U.S. and Foreign patents: 3,207,485;
3,282,226; 3,295,456; 3,301,191; 3,630,637; 3,663,117; 3,743,437; 4,335,886; 4,523,900; 5,489,187; 5,591,001;
6,074,554; 6,036,434; 6,079,958; 6,309,169; 2,320,742; 96/8140; 319,837; 918,534; 1,224,969; 2,232,735; 701,979 and
are the subject of pending U.S. and Foreign Patent Applications.
Cornell Pump Company
16261 SE 130th Ave
Clackamas, OR 97015
P: (503) 653-0330
F: (503) 653-0338
CORNELLPUMP.COM
©2013 CORNELL PUMP COMPANY