Presentation in the Facilities, Innovation and Technology Theatre at EMEX, The Energy Management Exhibition on 22-23 November 2017

1. EC Fans EnergyEfficiency/ Upgrade Projects
EMEX 22/11/17
Helen McHugh ebm-papst
Karl Lowe Munters

2. Topics Covered
Case Studies: Upgrade Projects – energy saving & Payback
EC Fans - How they can reduce a buildings energy consumption
Fan & Motor energy efficiency & ErP directive
Brief Company overview
11/28/2017
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3. ebm-papst
Company ovevriew
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 World leading manufacturer - Fans, Motors & Controls
 26 Production sites, 49 Sales Offices
 €1.9 billion turnover. (2016/17)
 14,400 staff
 R&D spend ~ €105m / year
Focus - Energy Efficient Product
Upgrade of existing HVAC equipment

4. Fan Solutions
Markets & Product
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• Ventilation
• Refrigeration
• Air Conditioning
• Industrial drives
• Industrial ventilation
• Automotive
• Household appliances
• Domestic Heating
• Commrcial Heating

5. HVAC - Saving energy by upgrading to ebm-papst EC fans
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AHU
Dry Cooler / Chiller RDCCRAC
FCUFFU
Typical Saving
20 - 50%
Typical Saving
50 - 70%
Typical Saving
40 - 60%

6. EC Motor - What is it?
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 Permanent magnet on rotor.
 AC mains Input – converted to DC onboard
 Integrated variable speed control (0 – 10v or PWM)
 High efficiency (>IE4 as standard)
AC to DC conversion
Rotor
Permanent magnet
Stator
Commutation
AC mains input

7. EnergyEfficiency
Legislation - ErP Directive
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Motors: minimum of IE3 - for motor sizes > 0.75kW
Fans: minimum efficiency for individual fan types. (Min level set to increase from Jan 2020)
ebm-papst
EC Motors
IE 4
IE 3
IE 2
Motorefficiency859095(%)
Shaft Power 1 5 10 kW
Energy savings resulting from ErP legislation
ebm-papst calculate
(using ebm-papst fan sales across Europe)
3.25 TWh saving / year Since Jan 15

8. Fan System
Improving energy efficiency
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Electronics
ebm-papstlevel
100%
0%
Efficiency
Motor technology
Efficiency
ebm-papstlevel
Aerodynamics
Efficiency
ebm-papstlevel
Impeller design

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EC Centrifugal fans for AHU’s

10. AHU’s
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Belt driven AC blower (motor + standby) EC plug fan (+ standby)
AHU’s at MERCEDESAMG PETRONAS Formula One Team- R&D Facility
Aims: Improve performance, reduce noise, reduce power consumption

11. AHU’s
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Power Saving 64%
Annual saving (kWh) 15,410 kWh / unit
Annual saving (£) £1,325 / unit
Payback Period 2.3 years
AHU’s at MERCEDESAMG PETRONAS Formula One Team- R&D Facility

12. Data Centre Cooling
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EC Plug fans fitted in the floor void
CRAC Unit - Original AC blowers
CRAC units - Investment Bank, London site
Aims :
• Improve energy efficiency of the data centre
• Free up supply capacity
• Improve the air flow and controllability
• Save money on Utility Bills and CRCEES

13. Data Centre Cooling
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Savings based on Fan upgrade
Power : 54% reduction - total 2,190,000 kWh
Financial: £233,000 / year
Payback 23 months
Completed 2012 - Paid back by 2014
Ongoing savings - Over £845,000 (since payback)

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Case Study - AHU Upgradewith Munters
Upgradingto EC will save energy, but also offers
• Increased controllability
• Reduced noise
• Increased reliability and life expectancy
• Increased performance
• Reduced maintenance costs

15. Case Study – AHU
BirminghamAirport
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Project: Upgrade AHU’s
• Initial trial to prove the energy savings
• Existing AC Fans failing & costly to replace
The aims :
• Replace failing AC fans with high efficiency EC Fans
• Reduced maintenance costs
• Increase flexibility by adding redundancy

16. Sample units on site
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17. Case Study – AHU
BirminghamAirport
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Trial Unit
Duty ~ 40,000 m3/h @ 1300Pa
Original fan
Twin axial (Flakt Woods)
EC Solution
Fan Grid 5 x RadiPac
K3G450-PB24-01

18. Case Study – AHU
BirminghamAirport
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Handles for easy and quick removal
Versatile configurations suit all applications
Controllability
Case Study – AHU
Added benefits and functionality

20. Case Study – AHU
BirminghamAirport
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Savings
Power: Reduced from ~ 24kWh. to 6.4kWh
Percentage: 73%
Saving: £11,130 / year
Payback: <19 months
Added benefits
• reduced noise
• improved controllability
• improved maintenance
• easier access
• active redundancy
• Quick installation time (2 days total upgrade time)

21. Case Study – AHU
BirminghamAirport
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Video

22. Thank you for discovering
ebm-papst.