Energy efficiency with certified products, Eurovent Certification - rehva

REHVA Technical Seminar
1/ 2012
18 October 2012, Brussels
Energy efficiency with certified
products
Sylvain COURTEY
s.courtey@eurovent-certification.com
Eurovent Certification Company (ECC)
www.eurovent-certification.com

REHVA Technical Seminar
2/ 2012
18 October 2012, Brussels
1. Review of existing certified
energy performances
2. How to use certified energy
performances?

3/ 2012
1. Energy index:
Energy performances?
‣ What you get / what you expense.
Ex: EER, COP, ESEER, …
2. Annual energy consumption:
‣ In kWh/annum
3. Energy efficiency classes:
‣ Ex: A, B, C, …

4/ 2012
EU energy label for
residential AC
• Commission Delegated Regulation (EU) No
626/2011 supplementing Directive
2010/30/EU published on 4 May 2011
• For cooling only and reversible residential
AC up to 12 kW
• Based on seasonal efficiencies
(SEER & SCOP)
• Efficiency in heating mode (SCOP) depends
on the climate (warm, average or cold)
• Label to be applied from 1st January 2013
• Certified performances available at
www.eurovent-certification.com in Jan 2013

5/ 2012
EU energy label for
residential ventilation units
• Draft commission working document
(10 Oct 2012)
• Publication in 2013?
• For residential ventilation units with fan
power input

6/ 2012
ECC energy label for
chillers and heat-pumps
• Eurovent energy classes available
since 2004
• Rating system was changed in 2011
according to EN14511:2011
• Take into account the proportional
heat given off from fans and
pumps: pressure drop in the HE is
taken into account (system
approach)
• Different from the US approach
(AHRI 550/590) for which only the
thermodynamic efficiency is
considered (gross performances)

7/ 2012
ECC energy label for
chillers and heat-pumps
Pc gross
without
integral
pump
Pc acc.
EN14511:2011
Pump contribution in
the unit =(Qv*∆p)/η
Pump contribution to the
ductwork =(Qv*ESP)/η
• EER EN14511:2011 ≈ 98.5% (±6) * EER gross
• COP EN14511:2011 ≈ 98.6% (±10) * COP gross
(source: www.eurovent-certification.com)

8/ 2012
Seasonal efficiency
for chillers: ESEER
ESEER=0.03*EER100%+0.33*EER75%+0.41*EER50%+0.23*EER25%
Lot 6: Air-conditioning and ventilation systems – Air conditioning systems – Final report of Task 7 (July 2012) – www.ecohvac.eu

Air handling units
9/ 2012
• Interrelationships to evaluate the energy efficiency
of AHU are complex and even depend on climate
conditions
• One single letter to represent
balanced effects of:
‣ Air velocity in the fan section (V)
‣ Heat recovery efficiency and
pressure drop (η)
‣ Fan efficiency (f)

10/ 2012
Air handling units
• Three classifications for three
subgroup of products:
‣ Design outdoor temperature < 9°C
(HRS will significantly save energy)
‣ Design outdoor T > 9°C : N
‣ Single extract units : h
• Six classes from A to

11/ 2012
ECC energy label for
Fan Coil Units
• Available since 2011
• First energy label for FCU
in the world!
• Weighted average of performance of
low, medium and high speeds
FCEER
5% Pc
5% Pe(
c)
high
high
30% Pc
med
30% Pe(
c)
med
65% Pc
low
65% Pe(
c)
low
5% Ph
FCCOP
5% Pe(
h)
high
high
25% Ph
• Consider both sensible and latent
capacities
• Certified data available at:
www.eurovent-certification.com
med
25% Pe(
h)
med
70% Ph
low
70% Pe(
h)
low

12/ 2012
1200
1000
800
ECC energy label for
Fan Coil Units
Others
Variable speed fan
600
400
200
0
G F E D C B A
Classes A and B only achieved by variable speed fan units

13/ 2012
ECC energy label for
Air Filters
• Available since 2011
• First energy label for
air filters in the world!
• Based on average pressure drop
measured during an EN779 test
• Estimated annual energy consumption
in kWh/year is given
Where qv = 0.944 m³/s ; t = 6000 h and η = 0.50
• Certified data available at:
www.eurovent-certification.com

14/ 2012
ECC energy label for
Air Filters
Filter class
G4 M5 M6 F7 F8
F9
MTE
— — — MTE ≥ 35% MTE ≥ 55% MTE ≥ 70%
M G = 350 g ASHRAE M M = 250 g ASHRAE M F = 100 g ASHRAE
A 0 – 600 kWh 0 – 650 kWh 0 – 800 kWh 0 – 1200 kWh 0 – 1600 kWh 0 – 2000 kWh
B > 600 kWh – 700 kWh > 650 kWh – 780 kWh > 800 kWh – 950 kWh > 1200 kWh – 1450 kWh > 1600 kWh – 1950 kWh > 2000 kWh – 2500 kWh
C > 700 kWh – 800 kWh > 780 kWh – 910 kWh > 950 kWh – 1100 kWh > 1450 kWh – 1700 kWh > 1950 kWh – 2300 kWh > 2500 kWh – 3000 kWh
D > 800 kWh – 900 kWh > 910 kWh – 1040 kWh > 1100 kWh – 1250 kWh > 1700 kWh – 1950 kWh > 2300 kWh – 2650 kWh > 3000 kWh – 3500 kWh
E > 900 kWh – 1000 kWh > 1040 kWh – 1170 kWh > 1250 kWh – 1400 kWh > 1950 kWh – 2200 kWh > 2650 kWh – 3000 kWh > 3500 kWh – 4000 kWh
F > 1000 kWh – 1100 kWh > 1170 kWh – 1300 kWh > 1400 kWh – 1550 kWh > 2200 kWh – 2450 kWh > 3000 kWh – 3350 kWh > 4000 kWh – 4500 kWh
G
> 1100 kWh > 1300 kWh > 1550 kWh > 2450 kWh > 3350 kWh > 4500 kWh
• Energy efficiency only defined for filters fulfilling minimum
discharge efficiency given in EN779:2012
• Method described in Eurovent 4/11
available at: www.eurovent-association.eu

15/ 2012
ECC energy label for
Air Filters
Important notice:
Filtration efficiency shall be chosen before Energy efficiency!
1. Targeted indoor air quality shall be defined
2. Filters shall be chosen according to international guidelines
(e.g.: EN13779):
3. Energy efficiency shall be defined according to Eurovent 4/11

Overview of energy labels &
performances for HVAC products
Res.
16/ 2012
Product
AC12kW
AHU
Fan Coils
?
2010
?
2008
2011
2013
2015?
2015?
2015?
2015?
2013
2007
1995
2007
1995
η
(S)EER, (S)COP
(S)EER, (S)COP
(S)EER, (S)COP
f(V,η,∆p,f)
FCEER, FCCOP
Air Filters
2012
2007
An. En. Cons
HEx
2005
2001
R

Res.
17/ 2012
Products
AC12kW
AHU
Fan Coils
Air Filters
HEx
Non Residential products with high energy
? saving potentials:
EU MEPS (push) and voluntary labels (pull)
(Exception with Fans)
?
Other Non Residential products: only voluntary
certification (driven by the market)

REHVA Technical Seminar
18/ 2012
18 October 2012, Brussels
1. Review of existing certified
energy performances
2. How to use certified energy
performances?

19/ 2012
French building energy
regulation “RT 2012”
• How does it work?
o
o
o
Computerized building simulation tool
Heat transfer calculation on an hourly basis
Need to be fed with HVAC products characteristics
• Examples of inputs
o
o
Efficiencies of cooling/heating generators
Heat recovery efficiency

20/ 2012
French building energy
regulation « RT 2012 »
• Cooling/heating generators
Efficiencies are required as inputs
(e.g.: COP for heat-pumps)
• Four levels of performances are considered
Efficiency (EER, COP) is:
Certified by a certification body
accredited according to EN45011
Justified by a laboratory
accredited according to ISO17025
Self declared
Not available
Value considered in the simulation tool
100%*Declared Value
90%*Declared Value
Min (80%*Declared Value, Default Value)
80% * Default Value

21/ 2012
French building energy
regulation « RT 2012 »
• Ventilation:
Heat recovery efficiencies are required as inputs
(in %-point)
• Three levels of performances are considered:
Efficiency of the heat-recovery
system is:
Certified by a certification body
accredited according to EN45011
Justified by a laboratory
accredited according to ISO17025
Self declared
Value considered in the simulation tool
100%*Declared Value
90%*Declared Value
Min (80%*Declared Value, Default Value)

22/ 2012
White certificates
• French white certificate scheme (Certificat
d’Econome d’Energie – CEE)
o
o
o
By law energy suppliers are obliged to help their
customers to save energy.
« Saved energy » is the number of kWh saved over
the lifetime of the product / equipment generating the
savings.
Standard operations are defined by public authorities

23/ 2012
White certificates
• Example of standard operation for Fan Coil units
(BAT-TH-43)
o
o
o
o
Refurbishment of old FCUs by new ones
In tertiary buildings with heated and/or cooled surface
< 5000 m²
New FCUs shall be Eurovent class A
Certified by Eurovent or a certification body
accredited according to EN45011 or justified by
independant laboratory accredited according to
ISO17025

24/45 2012
Other fiscal incentive
initiatives
• The Netherlands
‣ Government Capital Rebate programme for Air Handling
units with certified A product
• Spain
‣ Government incentives for High Efficiency Refrigeration
Display Cabinets (Energy Class A & B only)

25/ 2012
Where certified data
can be used?
Local tax incentives
National implementation of
EPBD
Building energy labels
Green public
procurements
White certificates

26/ 2012
Conclusion and perspectives
• EU MEPS and voluntary energy labels work together (push and
pull)
• Energy labels for HVAC products are a powerful marketing tool
but also a useful regulation tool
• In all cases, the best practice is as follows:
1. Good design (avoid oversizing) ask for certified
performances
2. Good energy efficiency ask for certified
A class

27/ 2012
Thank you for your attention