Grundfos E-CIRCULATORS FOR OPTIMIZING PUMPING SYSTEM

GRUNDFOS E-CIRCULATORS
Grundfos E-CIRCULATORS
FOR OPTIMIZING PUMPING SYSTEM DESIGN
TPE AND LME
Grundfos E-Circulators
TPE and LME
Grundfos is one of the world’s leading suppliers of pump
technology, and therefore has a major influence on the levels of
manufacturing standards and operating efficiency that can be
achieved with pumps.These provide customers with efficient,
reliable solutions throughout the entire spectrum of heating and
air-conditioning systems, and in the transfer of fluids used in
industrial processes.
Reliability and efficiency
Grundfos solutions meet – and often surpass – virtually all
customer requirements in this field, from pumps and pump
configurations that extend over the entire size range, to the
control systems and software. These are backed by the Grundfos
service and support essential for peak reliability and efficiency.
The energy difference
Energy costs represent a major component of an in-line pump’s
Life Cycle Costs. The Grundfos E-Circulator provides the best
possible opportunities for implementing electronic speed control,
which keeps the energy consumption of E-Circulator pumps to
an absolute minimum.
The kind of key technical improvements that are only available
from a company like Grundfos, with a specialist staff of 450 people
working solely on R&D and product development, means reliability
and efficiency that set new standards for in-line pumps.
The new Grundfos In-Line pump – TPE Series 2000
Shifting the curve on efficiency
Grundfos focuses intensely on the overall efficiency of all its
pump designs. With the technology capacity and R&D facilities
only available to one of the world’s leading manufacturers in this
field, Grundfos is able to optimize the design, manufacture and
operation of both pump and motor, and every component element of both.The Grundfos E-Circulator range features a series of
improvements that are individually significant and jointly decisive
in boosting the efficiency and reliability of the installations that
Grundfos customers are responsible for.
Efficiencyinin%%
Efficiency
90
80
70
60
50
40
30
0
10
20
30
Specific speed
The new Grundfos In-Line range
Market average
40
50
60
Grundfos TP
– exceptional
reliability
Grundfos E-Circulator pumps are world-renowned for their
exceptional durability and long-term reliability. The clear-cut
Grundfos reliability advantage provides both installers and endusers with major benefits and cost savings.
Exceptional manufacturing standards
•
•
•
Grundfos manufacturing facilities throughout the world are
certified to ISO 9000 standard or higher. Grundfos pumps are
therefore exhaustively checked and tested prior to dispatch,
and all manufacturing data is fully accessible.
Components are machined using the most advanced CNC
machinery currently available. This ensures complete uniformity.
Sourcing components from rigorously evaluated specialist
suppliers.
Exceptional design
•
•
•
An exceptionally rigid construction in which the coupling and
shaft of the pump are friction-welded together to provide
an extremely stable, mechanical unit with reduced vibration
and friction. This reduces wear on the bearings and on the
mechanical shaft seal, increasing both efficiency and operational reliability.
The very rigid shaft and coupling design means that the
shaft seal works more efficiently, and vibration and wear are
reduced to an absolute minimum. This also ensures longer
service life for the motor bearings.
Use of reduced tolerances for the distance between the
impeller and the pump casing eliminates irregular movement
and backflow is minimized. This means greater efficiency and
lower energy consumption.
The impeller of the Grundfos TP inline is balanced in much the
same way as the wheels of a car to ensure as stable and smooth
an operation as possible
The reduced distance between the impeller and the pump casing
means that irregular movements are eliminated. While back-flow
in the system is minimized this means higher efficiency and less
energy consumption
E-Circulator features
Grundfos
Motor
User
interface
Variable
Frequency Drive
Software
Control
Differential
pressure sensor
Grundfos
Pump
Constant speed pump can be applied, but in most cases the
speed controlled pump will be the optimum solution.
Main pumps
Boiler Shunts
Mixing loops
Heat surfaces
Heat recovery
Domestic hot water
circulation
Domestic hot water
production
Electronically speed-controlled
pumps means optimal solution
– in any system
The electronic speed control concept
The idea behind speed control is to integrate all electronic
components that makes each pump automatically adapt
output to current conditions, thus ensuring that energy
consumption will always be kept to a minimum. By automatically
controlling its own speed, the pump will continuously regulate
the pressure (head) so that it is optimally adapted to system
conditions.
Reducing energy by adapting to day to day
and seasonal changes
With this continuous adjustment to flow, the loss of energy that relates to changes in consumption throughout day
to day and seasonal operation is eliminated. This ensures
reliability of supply and a high degree of comfort.
The easily installed all-in-one solution
Grundfos speed-controlled In-Line pumps up to 1.5 HP in size
come with a built-in motor, frequency converter and the
necessary application software to achieve an all-in one
solution. In addition to ensuring optimum adaptation in flow, and
thus energy savings, the installation costs and the risks of errors
are reduced as these components are dedicated to each other and
already integrated.
Proportional pressure
Proportional pressure
Constant flow
Constant flow
Temperature control
The Series 1000 pumps have options for selecting any configuration
and control method required: i.e. constant pressure, proportional
pressure, temperature or flow control. The configuration can be
defined to suit any specific operating conditions and can equally
be amended to allow for ongoing changes.
The two series: Series 2000 and Series 1000
We offer two series of speed-controlled In-Line pumps, each
series comprises of a wide range of products. The Series 2000,
which is pre-defined to continuously regulate pressure according to flow, and the Series 1000, which allows for any configuration and control method required: constant pressure,
proportional pressure, temperature control or constant flow.
Optimized flow geometry
Using special 3D simulations and computer calculations, Grundfos
has fine-tuned the flow geometries of both the impeller and the
pump casing to ensure maximum compatibility between these
two key components. The Grundfos TP design means that the
pumped liquid flows through the pump with only a minimum of
aquadynamic disturbances to influence energy consumption, and
only a minimum backflow.
The Series 2000 pumps are pre-configured to regulate the pressure
continually in accordance with flow - through an built-in sensor.
This eliminates the need for any initial programming, thus making
the installation process extremely easy and straightforward.
Æp
Pumps with integrated sensors
Pre-setting for circulation, constant and proportional pressure.
Temperature control
EFF1 motors mean
significant energy
and maintenance savings
EU-classified low-energy motors: EFF1
All Grundfos In-Line pumps are now designed with EFF1 motors,
which are classified as the most efficient motor type (i.e. with
the lowest energy consumption). Together with the hydraulic
improvements, the motors contribute to making Grundfos InLine pumps the most efficient and reliable in the market – as seen
across a wide range of applications. This means higher efficiency
than conventional motors – especially during partial-load
operation, which is almost always the norm within in a pump
system.
Lower heat generation – smaller ventilators
The high level of efficiency means reduced heat generation and
therefore a lower cooling requirement in the motor, which in turn
means that a smaller ventilator is required.
Low noise level – long life of bearings
With the fitting of a smaller ventilator, the noise level is reduced.
At the same time, the motor bearings benefit from the low
operating temperature, thereby prolonging their service life.
Long lubrication intervals
With the reduced heat generation, the motor requires less
frequent lubrication. This saves both time and money in the
maintenance budget.
Simple and accurate adaptation of motor output
Grundfos EFF1 motors are stocked as standard product, this
allows Grundfos to easily adapt motors to suit the conditions of
any system. For example, in air-conditioning or cooling systems
using glycol, where extra motor power is required to circulate
more viscous liquid.
Reduce your
real costs
Almost 20% of the world’s
electricity consumption relates
to pump systems. 30–50% of
this energy could be saved.
20%
Pump
system
80%
Other use
Payback time of less than two years
Grundfos electronic speed control systems minimize energy
consumption. Because energy costs exert a huge incluence on
the Life Cycle Costs of a pump. there is usually a payback time
of as little as 1–2 years on the extra cost of a speed-controlled
pump system. Such solutions can often provide energy savings
of as much as 60–70%.
Further information about Life Cycle Cost and the benefits of
Grundfos speed-control pumps is available at
www.grundfos.com/cbs
Life Cycle Cost analysis
is available through WinCAPS
20 years operation
Energy consumption
Energy consumption
US $
US $
120,000
120,000
Life Cycle Cost – 20 years operation
Life Cycle Cost – 20 years operation
System 1
System 1
100,000
100,000
80,000
80,000
60,000
60,000
40,000
40,000
20,000
20,000
0
0
0
2
4
6
8
10
12
14
16
18
20
Year of operation
0
2
4
6
8
10
12
14
16
18
20
Year of operation
Payback time
105,642
53,032
Energy cost
1,500 1,500
Maintenance cost
5,200
Payback time
105,642
53,032
Energy cost
1,500 1,500
Maintenance cost
5,200
Assumptions behind the calculation
System 1 features 2 constant-speed pumps (2 Grundfos endsuction pumps).
System 2 features 3 speed-controlled pumps (3 Grundfos ECirculator pumps).
Cic
Cic
Cin
Cin
Ce
Ce
Co
Co
Cm
Cm
Cs
Cs
Cen
Cen
Cd
Cd
LCC
LCC
System 1-US $
System 1-US $
5,200
5,200
500
500
105,642
105,642
1,500
1,500
1,000
1,000
113,842
113,842
%LCC
%LCC
4.6
4.6
0.4
0.4
92.8
92.8
1.3
1.3
0.9
0.9
100
100
System 2-US $
System 2-US $
7,300
7,300
600
600
53,032
53,032
1,500
1,500
1,000
1,000
63,432
63,432
%LCC
%LCC
11.5
11.5
0.9
0.9
83.6
83.6
2.4
2.4
1.6
1.6
100
100
System 2
System 2
7,300
7,300
Initial cost
Initial cost
Depending on energy costs, the payback time on the extra cost of
electronic speed-controlled pumps is extremely short - normally
in the region of as little as 18 months. Given a cost of USD $0.1
per kWh, it normally amounts to approx. 1.7 years.
Saving - US $
Saving - US $
-2,100
-2,100
-10
-10
+52,610
+52,610
50,410
50,410
%Saving
%Saving
-40
-40
-17
-17
+50
+50
+44
+44
Remarks:
Remarks:
End-user price
End-user price
Commissioning
Commissioning
Energy price US $ 0.1/kWh
Energy price US $ 0.1/kWh
New shaft seals/motor bearings
New shaft seals/motor bearings
A standby pump is installed
A standby pump is installed
Being responsible is our foundation
Thinking ahead makes it possible
Innovation is the essence
Pumps for all commercial applications
SR/SF
SUPERBRUTE (UPS15-58FC)
CR 1s, 1, 3, 5
Closed system circulator pumps
Multistage centrifugal pumps
End-suction centrifugal pumps
MQ
KP and AP
VersaFlo
Self-priming multistage pump
Sump and utility pumps
3-speed circulator pumps
Grundfos is the flexible and innovative choice
Grundfos has been developing pumps for domestic use for more than 40
years. Throughout our long history our focus has always been innovative
solutions for heating, water supply and wastewater applications.
L-EC-SL-001
3/06
PRINTED IN USA
U.S.A.
GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: (913) 227-3400
Telefax: (913) 227-3500
www.grundfos.com
Canada
GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: (905) 829-9533
Telefax: (905) 829-9512
Mexico
Bombas GRUNDFOS de Mexico S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
C.P. 66600 Apodaca, N.L. Mexico
Phone: 011-52-81-8144 4000
Telefax: 011-52-81-8144 4010