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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
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
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
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
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150
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350
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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
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