Ecodesign Regulations for Liquid Chillers - · PDF fileeurammon Symposium 2015 for Hermann...

eurammon Symposium 2015

for

Hermann Renz, BITZER GmbH

Schaffhausen, 25th/26th June, 2015

Ecodesign Regulations for

Liquid Chillers

Hermann Renz, BITZER GmbH

Schaffhausen, 25th / 26th June, 2015

Contents

• Main objectives of Ecodesign Framework Directive

• Projects within the Ecodesign Framework Directive

• ENTR Lot 1 / ENER Lot 21 – Application ranges

• Mandatory requirements for placing on the market

• Load and temperature profiles

• Calculation method

• Efficiency requirements “MEPS“

• Summary

Ecodesign Regulations for Liquid Chillers


Ecodesign Framework Directive 2009/125/EC

The four main objectives

• Ensure the free movement of energy-related products within the EU

• Improve the overall environmental performance of these

products and thereby protect the environment,

• Contribute to the security of energy supply and enhance the

competitiveness of the EU economy,

• Preserve the interests of industry, consumers, and other stakeholders


Projects (Lots) within the

Ecodesign Framework Directive 2009/125/EC

ENER Lot . ENTR Lot .

1. Boilers 10. Air cond. < 12 kW 20. Local room heating 1. Refrigeration

2. Water heaters 11. Motors, fans, .. - under revision

21. Central heating,

cooling products

2. Transformers

3. PC 12. Com. Refrigerators ….. 3. Multimedia

4. Copiers 13. Domestic Refrig. ….. 4. Industr. furnaces

5. TV, … 14. Dish washers 30. Motors / Drives 5. Machine tools

6. Stand-by losses 15. Fossil fuel burner 31. Compressors 6. A/C and Ventilation

7. Battery charger 16. Laundry Driers 32. Windows 7. Steam boilers

8. Office lights 17. Vacuum cleaners 8. Power cables

9. Street lights 18. Set top boxes 9. Enterprise servers

19. Domestic lighting

HVAC&R Involvement

Current main work

items for HVAC&R

Commissions Energy (ENER) and Enterprise (ENTR)

• MT & LT

Process Chillers

• Condensing Units

• HT Process Chillers

• Comfort A/C Chillers

• Air Heating Heat Pumps


Major Projects for HVAC&R

• Current Major Focus

ENTR Lot 1 Professional Storage Cabinets, Blast Cabinets,

Condensing Units and MT/LT Process Chillers

ENER Lot 21 Air Heating Products (incl. “Air” HP), Cooling Products

(incl. A/C Chillers) and High Temp Process Chillers

• Further Lots of Relevance

ENER Lot 1(2) (EU) No 813/2013 ‒ Space heaters and Combi Heaters

ENER Lot 11 (EU) No 327/2011 ‒ Fans Driven by Motors Revision

ENER Lot 12 Commercial Refrigerators and Freezers

ENER Lot 30 Motors & Variable Speed Drives

ENTR Lot 6 A/C and Ventilation Units (merged with ENER Lot 10)

Both Lots are still in a draft stage ‒ Regulation acc. to Lot 1 expected for July!


ENTR Lot 1 / ENER Lot 21 – Application Ranges for Chillers

LT

-25°C brine

MT

-8°C brine

HT

+7°C water

air-cooled and water-cooled

A/C

+7°C water

Dieter Mosemann – Mai 2014 6

water cooled




ENTR Lot 1 ENER Lot 21

(1) Process Chillers

(2) Comfort A/C Chillers


Minimum Efficiency Performance Standards MEPS

Process Chillers ‒ LT / MT SEPR SEER

LT (brine -25°C) – Cooling capacity < 200 kW // ≥ 200 kW –

MT (brine -8°C) – Cooling capacity < 300 kW // ≥ 300 kW –

tamb (A) 35°C

tamb (B) 25°C

tamb (C) 15°C

tamb (D) 5°C

full load

part load

part load

part load

–

–

–

–

‒ Criteria for MEPS*

SEPR Seasonal Energy Performance Ratio

- calculated from EER at full and part load points

Tier-1 01.07.2016

Tier-2 01.07.2018

Application of the Regulation from ..

ENTR Lot 1 Process Chillers (LT / MT) ‒

Mandatory Requirements for Placing on the Market



Process Chillers SEPR hs,c (SEER)

HT (water 7°C) – Cooling capacity < 400 kW // ≥ 400 kW //

≥ 1500 kW (water-cooled condenser)

tamb (A) 35°C

tamb (B) 25°C or 30°C

tamb (C) 15°C or 25°C

tamb (D) 5°C or 20°C

full load

part load (25°)

part load (15°)

part load (5°)

full load

part load (30°)

part load (25°)

part load (20°)


SEPR Seasonal Energy Performance Ratio


hs,c Seasonal Space Cooling Efficiency [%]

Tier-1 01.01.2017 ??

Tier-2 01.01.2020 ??


or*

ENER Lot 21 Process Chillers (HT) ‒


* Not yet confirmed

ISC 05.2015



hs,c Seasonal Space Cooling Efficiency [%]

- calculated from SEER by CC (PEF) = 2.5

SEER Seasonal Energy Efficiency Ratio


Comfort A/C Chillers SEPR hs,c (SEER)

A/C (water 7°C) – Cooling capacity –

–

< 400 kW // ≥ 400 kW //

≥ 1500 kW (water-cooled cond.)

tamb (A) 35°C

tamb (B) 30°C

tamb (C) 25°C

tamb (D) 20°C

–

–

–

–

full load

part load

part load

part load


Tier-1 01.01.2017 ??

Tier-2 01.01.2020 ??


ENER Lot 21 Comfort A/C Chillers ‒


ISC 05.2015


Load and Temperature Profiles

ENTR Lot 1 ENER Lot 21

A/C Comfort Chillers

HT Process Chillers

MT Process Chillers

Reference

Condition

air-

cooled

tamb

[°C]

water-

cooled

twater

[°C]

load

[%]

A 35 30 100

B 25 23 93

C 15 16 87

D 5 9 80

Reference

Condition

air-

cooled

tamb

[°C]

water-

cooled

twater.

[°C]

load

[%]

A 35 30 100

B 30 26 74

C 25 22 47

D 20 18 21

LT Process Chillers


Liquid Chillers ‒ Load Profile vs. Ambient Temperature

Ambient temperature [°C]

Lo

ad

pro

file

[%

]


Temperature Profile Strasbourg – ENTR Lot 1 Process Chillers

Ambient temperature [°C]

BIN

ho

urs

pe

r ye

ar


Temperature Profile ENER Lot 21* (EN 14825)

for A/C Chillers ‒ vs. Temperature Profile Strasbourg

* based on EN 14825

Efficiency Evaluation

SEPR

Efficiency Evaluation

hs,c (SEER)

BIN

Stu

nden p

ro J

ahr

Umgebungstemperatur [°C] Ambient temperature [°C]

BIN

ho

urs

pe

r ye

ar


SEPR and SEER Calculation Method

Tj = BIN temperature

j = BIN number with j {1,2, … n}

PR(Tj) = Refrigeration (cooling) demand for the corresponding BIN temperature Tj

hj = Number of BIN hours occurring at the corresponding BIN temperature Tj

COPPL(Tj) = COP values of the unit for the corresponding BIN temperature Tj

EERbin(Tj) = EER values of the unit for the corresponding BIN temperatur Tj

SEPR

Seasonal Energy Performance Ratio Seasonal Energy Efficiency Ratio

SEPR, SEER = seasonal cooling demand

seasonal electrical energy demand

EERbin

SEER SEER


0

50

100

150

200

250

300

350

400

450

0,0

0,2

0,4

0,6

0,8

1,0

1,2

1,4

-20 -15 -10 -5 0 5 10 15 20 25 30 35 40

Dura

tion p

er

bin

in h

ours

Coolin

g d

em

and [

-]

Ambient temperature in °C

bin hours

Demand

A B C D

Capacity characteristic

w/o modulation

Degradation (Cd) of EER

Cd

Degradation Coefficients for EER Correction ‒

Example: Process Chillers w/o Capacity Modulation


EER Correction: Chillers w/o Modulation

Degradation Coefficient (Cd), (Cdc) at part load (CR = capacity ratio):

• Cdc can be determined by test (EN 14825) ‒ A/C Chillers

incl. power demand of all auxiliaries during standstill (e.g. oil heater).

If not to be determined by test Cdc = 0,9

• Process Chillers: Due to very high running hours over the year, power demand

for oil heaters is not relevant for Cdc

Part load EER for chillers (compressors) w/o capacity modulation:

Calculation according to EN 14825


Excel Sheet for SEPR Calculation –

Example: Process Chillers

Temperature range

for SEPR calculation ‒

from -19°C to 38°C

in 1 K increments

4 Reference Conditions:

35°, 25°, 15°, 5°C ambient


Minimum Energy Performance Standards “MEPS“

ENTR Lot 1 / ENER Lot 21 Projects –

Efficiency Requirements for Liquid Chillers


• Following slides are showing the current status of minimum efficiency

requirements (MEPS)

• Process Chillers:

MEPS are accepted by Commission Officials and Stakeholders and will

most likely not be changed in the final Regulation

• Comfort A/C Chillers:

Very challenging (some non-plausible) MEPS were not lowered during the

current Inter-service Consultation Process – despite of convincing counter

proposals from Stakeholders at an earlier stage

Further initiatives are taken with the target to reach a consensus –

with the hope that MEPS (at least for Tier-1) will be changed

ENTR Lot 1 / ENER Lot 21 Status


Cooling capacity MEPS Tier-1 MEPS Tier-2

LT air-cooled < 200 kW

≥ 200 kW

1,48

1,6

1,7

1,84

MT air-cooled < 300 kW

≥ 300 kW

2,24

2,8

2,58

3,22

HT air-cooled < 400 kW

≥ 400 kW

4,5

5,0

5,0

5,5

Process Chillers – SEPR Analysis

LT water-cooled < 200 kW

≥ 200 kW

1,82

2,1

2,09

2,42

MT water-cooled < 300 kW

≥ 300 kW

2,86

3,8

3,29

4,37

HT water-cooled < 400 kW

≥ 400 kW

≥ 1500 kW (ISC 05.2015)

6,5

7,5

8,0

7,0

8,0

8,5

ENTR Lot 1 / ENER Lot 21 ‒ Liquid Chillers

Proposed Minimum Energy Performance Standards MEPS


• Conversion Coefficient CC = 2,5 (PEF)

reflecting the estimated 40% average efficiency

for generating electrical energy within the EU –

acc. to Directive 2012/27/EU, Annex IV

• Summation of Corrections F(i) = 3%

accounts for the “negative contribution due to adjusted contributions

of temperature controls”

A/C Chillers ‒ Conversion of SEER to

Seasonal Space Cooling Energy Efficiency “hs,c

“

1

CC– F(i) [%]hs,c [%] = [%]• SEER

SEER • 40

1,03hs,c [%] =

Subject for misinterpretation –

to be clarified with Commission

SEER • 100 1

2,5 1,03hs,c [%] = • ?


Cooling capacity hs,c (SEER) Tier-1 hs,c (SEER) Tier-2

air-cooled < 400 kW

≥ 400 kW

157% (4,0)

173% (4,4)

161% (4,1)

185% (4,7)

water-cooled < 400 kW

≥ 400 kW

≥ 1500 kW

196% (5,1)

256% (6,6)

256% (6,6) ??

200% (5,2)

272% (7,0)

272% (7,0) ??

Comfort A/C Chillers – hs,c / SEER Analysis – Refrigerants GWP > 150

Comfort A/C Chillers – hs,c / SEER Analysis – Refrigerants GWP < 150

Cooling capacity hs,c Tier-1 hs,c Tier-2

air-cooled < 400 kW

≥ 400 kW

141%

156%

145%

167%

water-cooled < 400 kW

≥ 400 kW

≥ 1500 kW

176%

230%

230% ??

180%

245%

245% ??

ISC 05.2015

ENER Lot 21 ‒ Liquid Chillers

Proposed Minimum Seasonal Space Cooling Efficiency


Eurovent data base 05.2015: ESEER translated into SEER net

Ecodesign ENER Lot 21 ‒ A/C Chillers < 400 kW

Market Influence within EU

Tier-1

Tier-2

MEPS are not achieved by

Tier-1: 2017 87%

Tier-2: 2019 92%

~ 80%

~ 88%


• Process and Comfort A/C Liquid Chillers

• Requirements for tolerances: SEPR, hs,c (SEER),

EER at Reference Conditions

• Comfort A/C Chillers (air-cooled)

• Limits for maximum sound power levels

• General ‒ formal requirements acc. Directive 2009/125/EU

• Conformity assessment acc. Article 8 (2)

CE Marking including Declaration of Conformity

• Technical Documentation acc. Annex IV and V

• Information on disassembly , recycling and disposal

Further Requirements


Example:

Process Chillers

• Data sheet for

performance

declaration


• Ecodesign Regulations Liquid Chillers are setting very high Energy

Efficiency requirements in future

• Regulations still in draft stage ‒ ENTR Lot 1 expected for July 2015

• Minimum Energy Performance Standards (MEPS) will become

mandatory for being allowed to place products on the EU Market

• Tier-1 for CU and LT / MT Process Chillers as of July 1, 2016

• Liquid Chillers for Comfort A/C will in future be assessed on basis of

“Seasonal Space Cooling Energy Efficiency“

• Eurovent data base shows that the majority of currently produced

products must be dropped from the market

• Proposed MEPS from the EU Commission are “overstated” – request

from Stakeholders to set lower levels

Summary

Contact:

Hermann Renz

Eschenbruennlestr. 15, D-71065 Sindelfingen

Germany

+49 7031 932 240

+49 7031 932 5240

[email protected]

Thank You for Your Attention!

Ecodesign Regulations for Liquid Chillers - · PDF fileeurammon Symposium 2015 for Hermann...

Documents

Transcript of Ecodesign Regulations for Liquid Chillers - · PDF fileeurammon Symposium 2015 for Hermann...