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FORCE TechnologyRK-Project: Effects from installations and dynamic usage on household meters.
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Content• FORCE Technology
• GTS, RK-projects & Flowcenter DK
• Installation effects
• Dynamic usage
• End product
• Summary
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About FORCE Technology
We:
• are one of the leading technological service companies on the international market
• are independent and self-governing
• have a strong Scandinavian base
Our:
• work is based on the most recent technological knowledge
• development budget is more than 26 mill. EUR
We transform highly specialized engineerical
knowledge into practical and productive solutions
for a number of industries.
A GTS COMPANY
As a GTS company, we are dedicated to develop
and use technologies and new knowledge for the
benefit of Danish companies and the Danish
society as a whole.
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An international company
The United
Arab EmiratesAbu Dhabi
ChinaBeijing
Singapore
DenmarkBrøndby
(Headquarters)
21 sitesUnited Kingdom
Hengoed
NorwayHvalstad
8 sites
SwedenVästerås
22 sites
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FORCE Technology at a glance
50%+INTERNATIONAL TURNOVER
More than 50% of our turnover derive from our
international customers through export or foreign
activities.
9,700+CUSTOMERS
Every year, we provide service to around 10,000
Danish and international customers, private as well
as public.
57BUSINESS AREAS
FORCE Technology consists of many business
areas, each with a deep technical expertise,
servicing the customers from the first idea through
development and testing to certification and
inspection.
450+UNIQUE FACILITIES
We possess one of Scandinavia's largest
collections of unique facilities and laboratories
that ensures e.g. testing, demonstration, and
documentation of new technologies and products.
1,461EMPLOYEES
• Dr. & ph.d. — 4%
• Postgraduate degree — 22%
• Other technical staff — 52%
• Other non-technical staff — 22%
5,000+COURSE PARTICIPANTS IN 2016We spread our knowledge by running more than
400 courses and events annually. Also, more than
350 companies in our network and professional
societies benefit from our knowledge.
35+NEW R&D PROJECTS IN 2016
In 2016, we launched more than 35 new research
and development projects in fields that included:
IoT, materials technology, bioenergy,
microelectronics and sensor technologies.
100+BUSINESS PROJECTS
Our co-operation with all the Danish and several
international universities ensures our customers'
access to future technology and knowledge. It
keeps us at the forefront of the technological
development.
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Business areas
• Acoustics & vibration
• Aerodynamics & industrial processes
• Applied psychology
• Approval management
• ASIC turn key solutions
• Certification
• Education & training
• Energy, climate & environment
• Hydrodynamics
• Ideation & feasibilty
• Inspection & testing
• Integrity management
• Materials & analysis
• Metrology
• Perception & sensory evaluation
• Production- & process technology
• Sensors & measurement systems
• Simulation technology
• Structural integrity services
• System- & management development
DEVELOPMENT, CONSULTANCY & SERVICES
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Being a GTS-institute
Projects 2016-2019:
FORCE Technology1. Effects on flow measurement
due to installations2. Effects on flow measurement
due to dynamic discharge
TI1. On site calibration with
clamp-on meters
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Installation effectsDeviations in accuracy do to installation effects
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Preliminary work
• Requirements
Type approval:
Installation effects are tested by
a swirl generating flow
disturbance and an asymmetric
velocity generator.
Dynamic discharge:
All test are done with continuous
flow.
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Preliminary work
• In the field requirements
DS439:2009 list the
requirements for installations
of domestic water meters.
Furthermore: Most utility
companies have their own
guidelines.
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Data collection
• Systematic categorization of fitting and installations dimensions.
• Collection of data points from HOFOR A/S, Fyns Fjernvarme A/S,
DIN Forsyning Esbjerg and by anonymous contributions online.
• A total of 2352 water installations was analyzed and 301 heat meter
installations.
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Categorization of fittings
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• Water
• Heat
Results fittings
1. fitting up stream 2. fitting up stream
TOTAL Bend Reduction Valve Filter Straight Other
Bend 1455 420 98 728 4 195 10
Reduction 319 149 8 135 7 19 1
Valve 514 290 69 1 1 153 0
Filter 17 8 3 5 0 1 0
Straight 44 25 1 5 0 9 4
Other 4 2 0 2 0 1 0
1. fitting up stream 2. fitting upstrøms
TOTAL Bend Reduction Valve Filter Straight Other
Bend 94 40 6 14 12 18 4
Reduction 110 22 0 4 78 4 2
Valve 18 6 1 1 0 9 1
Filter 49 34 1 10 0 3 1
Straight 14 6 1 1 2 2 2
Other 16 4 1 3 2 9 1
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Dimensional analyzes
• Directional flow alterations in
combination with changes in pipe
dimensions and material.
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3-Dimentional categorization
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• Classification codes:
XO: Long straight pipes (>10D).
ZO: Obstructions with continues flow direction
xPB: Pipe bends .
(xPB+xPB)F: Double bend, with out altering flow direction.
(xPB+xPB)R: Double bend with returning flow direction.
(xPB+xPB)A: Double bend out of plane.
Generalization
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Generalization
• 3 installation classes
Class Characteristics ”Codes”
A Ideal flow or flow without significant deviations to axial
symmetrical flow. No swirl of recirculation.
XO
(xPB+xPB)F
B The radial velocity distribution of the axial composite is controlled by an upstream obstruction, which partially blocks for free passage. May be combined with a (weak) recirculation.
ZO
xPB
(xPB+xPB)R
C The radial velocity distribution of the axial composer is
controlled by a (powerful) swirl. This is primarily due to the
combination of 2 bends out of plane.
(xPB+xPB)A
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ResultsClass Type Water Heat
A XO 177+108 21+4
(xPB+xPB)F 12+60 0+3+2
(xPB+Z0)F 16 *)
TOTAL 373; (16%) 30;(10%)
B ZO 104 135 (ft: næste alle filtre)
xPB 29+482+744=1255 28+12+11=51
(xPB+xPB)R 0+78+199=277 1+0+13=14
(xPB+Z0)R 40 0
TOTAL 1676 (70%) 200 (66%)
C (xPB+xPB)A 1+43+185=229 2+9+21=32
(xPB+Z0)A 9 *)
TOTAL 238 (10%) 32 (10%)
Other 75 (3%) 54 (18%)
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Measurements on fittings
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Re = 3500¾” 200 l/t½”
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Inside the pipe – Deformation and corrosion
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Test in installations
• F1: Reference
• F2: Bend (x15-rs)
• F3: Double bend (x15-rs-x4-rs)
• F4: Soft bend + Tee (x15-rl-rte)
• F5: Bend + ¾” to ½” reduction (x40-rs-ktn)
At
• 60 l/h (Re=1400 = laminar)
• 350 l/h (Re=8000 = turbulent)
• 900 l/h (Re=21000 = turbulent)
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Results
Reference calibration at ideal conditions
Test results
Shift from reference to test
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Dynamic usage
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Do to public outcries of uncertainties in domestic water metering, this report was finalized in 2011.
Take away:
1. Dynamic usage does have an influence on meter accuracy at small flowrates. But due to the small flow ranges and short discharge times the resulting inaccuracies was deemed neglectable.
2. Wrongful installations can result in high measurement inaccuracies.
Previous work
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Test on dynamic discharge - USMTest nr. Nominel flow Sequence Measurement
1 5 l/h 1 sequence/3 repetitions Weight 6,2-7,3 liter
Flowrate 4,7,-4,8 l/h
2 60 l/h 1 sequence/3 repetitions Weight 19,6-22,3 liter
Flowrate 58,8-58,9 l/h
3 350 l/h 1 sequence/3 repetitions Weight 57,4-57,9 liter
Flowrate 342,9-347,3 l/h
4 900 l/h 1 sequence/3 repetitions Weight 68,2-76,0 liter
Flowrate 910,2-912,8 l/h
5 60 l/h240 sequences/3 repetitions
15 sec open; 5 sec closed
Weight 64,4-67,7 liter
Flowrate 64,4-67,7 l/h
Batch 0,27-0,28 liter
6 350 l/h60 sequences/3 repetitions
10 sec open; 5 sec closed
Weight 63,5-64,7 liter
Flowrate 380,7-388,1 l/h
Batch 1,06-1,08 liter
7 900 l/h30 sequences/3 repetitions
10 sec open; 5 sec closed
Weight 78,2-84,3 liter
Flowrate 938,6-1011,2 l/h
Batch 2,61-2,81 liter
8 900 l/h20 sequences/2 repititions
15 sec open; 5 sec closed
Weight 83,1-84,0 liter
Flowrate 996,8-1007,8 l/t
Batch 4,15-4,2 liter
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Test on dynamic discharge - Mechanical
Test nr. Nominelt flow Sekvens Afmålt
1 60 l/t
100 sequences/2 repetitions
15 sec open; 5 sec closed
P1: 3,83 barg; P2: 3,5 barg
Weight 21,5-21,7 ltr
Flowrate 51,7-52 l/t
Batch 0,22-0,22 ltr
2 40 l/t
60 sequences/2 repetitions
15 sec open; 5 sec closed
P1: 1,69-2,2 barg; P2: 1,3-1,77 barg
Weight 9,6-12,8 ltr
Flowrate 38,3-51,0 l/t
Batch 0,16-0,21 ltr
Test nr.Make 1
s/n 09538105
Make 1
s/n 10443165
Make 2
s/n 07 541666
Make 2
s/n 07 540818
119,6% 20,0% -3,1% -2,4%
20,3% 20,6% -5,2% -3,8%
216,5% 18,1% -2,1% 0,1%
12,2% 12,7% -0,1% 0,2%
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European Metrology Program for Innovation and Research
• Metrology for real‐world domestic water metering
• Develop infrastructure to asses domestic water meters under dynamic load changes
• Metrology to asses the performance of domestic water meters under realistic operating conditions
• Smart monitoring at low flow ranges
• Create a virtual flow meter to test influence parameters.
Project proposal.
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End Goal - Education
• In corporation with the faculty at the
business academies and technical
schools we aim to develop
educational material/guidelines for
installation at upkeep of domestic
water/heat meters
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Time schedule
• Fall/Winter 2017
Test as many variables in our lab as possible, and analyze the data.
• Spring 2018
Further test and development of educational material.
• Summer/fall 2018
Finish tests and write final report.
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Summary
• Flow meters aren’t tested/approved under all real world scenarios.
• Installation and corrosion have a influence on accuracy.
• Flow disturbances due to dimension change and material change need further clarification.
• Dynamic load changes creates great deviations.
• Metrology institutes around Europe see this as a challenge that need to be addressed.
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Thanks for your time. Questions?
By Erik Jensen and Johan Bunde Kondrup
[email protected] – [email protected]
Further information at forcetechnology.com