Towards a level playing field in the GCC for evaluating Energy Efficiency Air-Conditioning Systems

2017-05-03 EU-GCC Clean Energy Technology Network

EU-GCC Clean Energy Technology Network

Energy Efficiency and Cooling Technologies Workshop – May 3rd

,2017 – Doha – Qatar

Michel Farah

Vice-Chairman Eurovent Middle East

Director Corporate Environmental and Social Responsibility,

Daikin Middle East and Africa FZE

Who we are Members

2017-05-03 EU-GCC Clean Energy Technology Network

Topics

The Environmental Challenge facing the HVAC industry

GCC Countries commitment to reduce GHG Emissions

HVAC regulations and trends towards a unified way to evaluate Energy Efficiency

How to reduce the HVAC carbon footprint in buildings The impact of refrigerants

The impact of Energy Efficiency

New Technologies that help achieve the reduction targets

How to measure Seasonal Energy Efficiency in the GCC

2017-05-03

EU-GCC Clean Energy Technology Network

The Environmental Challenge Ozone Depletion

2017 EU-GCC Clean Energy Technology Network

Ozone layer had been damaged by Chlorine base ref. CFC & HCFC

Chlorine free alternative refrigerant (HFC) was introduced

Expansion of ozone hole has stopped

Global warming has been highlighted as the critical environmental issue

The Environmental Challenge Global Warming Potential

2017 EU-GCC Clean Energy Technology Network

Global Agreement to reduce GHG emissions

2017 Corporate Presentation

The increase of the earth surface temperature resulting from the direct Gas emissions from chemicals such as refrigerants and the indirect emissions from generating electricity by burning fossil fuel

GCC (INDC) Commitments to COP 21

2017 EU-GCC Clean Energy Technology Network

Energy Efficiency and Safety labels across the GCC

2017-05-03 EU-GCC Clean Energy Technology Network

GCC unified Energy label for cars is a good example to follow

EE Requirements for Split AC THE PATH TO UNIFIED LABELS STARTS WITH UNIFYING TESTING POINTS AND MEPS Different countries, different EER regulations… Different EER requirements, at different Temperature conditions Different scope of products Different energy labels and nameplate requirements

2017-05-03 EU-GCC Clean Energy Technology Network

9.5 DM

11.8 Tarakhees

EE Requirements for VRF

VRF RECOGNITION BY THE GCC EE REGULATIONS Different countries, different EER regulations… Different EER requirements, but all defined at different Temperature Conditions Different scope of products Different energy labels and nameplate requirements

2017-05-03 EU-GCC Clean Energy Technology Network

EE requirements for A/C Chillers

2017-05-03 EU-GCC Clean Energy Technology Network

Country Authority Regulation Cooling Capacity

EER Testing Standard

UAE UAE.S 5010-5 2016

CC ˂ 630 kW

kW 630 ≤ CC

@ 35°C

8.50

9.50

AHRI 550/590

Abu Dhabi QCC-PCS-ASP017

CC ˂ 528 kW

kW 528 ≤ CC

@ 35°C

9.64

9.64

AHRI 551/591

Saudi Arabia 2874:2016

CC ˂ 527.4 kW

kW 527.4 ≤ CC

@ 35°C

9.7

9.7

AHRI 550/590

Kuwait MEW/R6/2016

ALL

@ 35°C

7.5

AHRI 550/590

How to reduce the HVAC carbon footprint in buildings

2017 EU-GCC Clean Energy Technology Network

Reduce Refrigerant GWP (Global Warming

Potential) to reduce Co2 Emissions

Reduce Energy Consumption for the

same Cooling output to reduce power demand

Direct CO2Emissions Indirect CO2 Emissions

HVAC Share in

Buildings Power

consumption in the

GCC varies between 60

to 70% of the total

building power

consumption

Low GWP Refrigerants Adaptive Variable Speed Solutions

Towards low GWP Refrigerants

2017 EU-GCC Clean Energy Technology Network

CFC HCFC HFC Next ?

R-11, R-12 R-22, R-123 R-410A, R-134a Low GWP refrigerants Reduce greenhouse gas emissions and global warming Ozone depleting

High global warming potential (GWP)

Under the Montreal protocol

Towards Variable Speed Technology

2017 EU-GCC Clean Energy Technology Network

0

50

100

150

200

250

300

350

400

450

500

0 10 20 30 40 50

# h

ou

rs t

em

pe

ratu

re o

ccu

rs

Temperature (C)

Yearly Cooling Hours

Operation Time Range ~ 80%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Random occupancy

Daily Occupancy Ratio

Systems that adapt to Seasonality and Diversity have higher Energy Efficiency

2017-05-03 EU-GCC Clean Energy Technology Network

Nonminal EER does not represent real efficiency

• The GCC EE regulations have one thing in common : Nominal EER at One T Condition

• Increasing Nominal EER will lead to Higher Cost Equipment without real benefits to the consumer

Design point: 46CDB

100%

ZONE OF CONCERN FOR PEAK DEMAND

occurence ~ 1%

Weatherspark.com (Muscat airport weather station, 2016)

100%

Design point: 35CDB

Seasonal Efficiency = Real Efficiency

2017-05-03 EU-GCC Clean Energy Technology Network

40.4

31.8

20.5 14.2

12.5 10

Occurrence (cooling) ~ 80%

CORRESPONDS TO ZONE

WHERE VRF HAS EVEN BETTER

PERFORMANCE

Weatherspark.com (Muscat airport weather station, 2016)

EER – VRF -10 HP

GCC Climate & SEER Standards

2017-05-03 EU-GCC Clean Energy Technology Network

500 Abu Dhabi Riyadh Muscat Kuwait AHRI ISO

Ho

urs

°C 0

50

100

150

200

250

300

350

400

450

0 10 20 30 40 50

Both AHRI (red line) and ISO climate reference (green) are not so appropriate for GCC, because of the gap in temperature distribution. International Seasonal efficiency standards need to be adapted based on GCC climate conditions.

Difference in weighting

Weighting of each temperature in seasonal efficiency for ISO reference condition and Middle-east conditions are indicated above.

In current ISO reference and AHRI seasonal efficiency, efficiency in 25-30 °C ambient condition has major impact, but in Middle-east condition 30-40 °C ambient range is important.

Optimization in SEER of AHRI or ISO reference condition adversely affects, since weighting of 25-30 °C range is not so high.

Weig

ht

in S

EE

R(%

)

Ambient Temp(°C)

0

2

4

6

8

10

12

14

16

20 25 30 35 40 45 50

ISO Reference

Middle-east (Riyadh)

The need for SEER

Almost all developed countries employed or are employing seasonal efficiency MEPS or equivalent.

Variable speed compressors holds large potential to improve energy efficiency. But, their potentials are not well evaluated with nominal EER at one point

The Middle-East and other southern countries have much higher ambient than developed countries thus requires the adaptation of a Seasonal Energy Efficiency with a specific weather bin distribution

2017-05-03 EU-GCC Clean Energy Technology Network

SEER: international developments

2017-05-03 EU-GCC Clean Energy Technology Network

Conclusion

Recognition of Energy Efficient systems by GCC regulations

Multiple testing conditions and reference standards

Effort required to unify the requirements across the GCC

Full load EER does not represent the Part load efficiency advantage

SEER need to be adapted to local conditions

Together we can make it happen

2017-05-03 EU-GCC Clean Energy Technology Network

THANK YOU