R290 Air Conditioner

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R290 Air Conditioner

• Presented on behalf of GREE
• By Dr. Volkmar Hasse, GTZ-PROKLIMA INTERNATIONAL
• At the Joint West Asia and South Asia Network
  Meeting
• 10 May 2009

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R290 Air Conditioner

• Content
• 1. Company Introduction
• 2. R290 A/C Product Introduction
• 2.1 General Introduction
• 2.2 R290 Compressor
• 2.3 Refrigerant Leak Alarm System
• 3. Market development

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1.Company Introduction

• Company Introduction
• Gree Electric Appliance Inc. of Zhuhai
  (China)

Gree Electric Appliances, Inc. of Zhuhai, founded
in 1991, has become the worlds largest
specialised air conditioners company. The
company integrates RD, manufacture, sales and
service. In 2008, the annual sales revenues
achieved 42 billion RMB (about 4.2 billion
Euro) The company is listed among the top "100
Chinese Companies" by Fortune Magazine for eight
consecutive years.
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1.Company Introduction
1.Company Introduction
Gree markets the unique "World Brand" air
conditioners in China Today, Gree products are
sold in 200 countries. Since 1995 and for 13
continuous years, Gree's sales volume and market
share has occupied No. 1 in the Chinese air
conditioner industry. Since 2005, for the three
consecutive years since then, Grees sales volume
of residential air conditioners occupied the
first place, globally. For 2008, 190 million
units were sold world wide.
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2. R290 A/C Product Introduction
2. R290 A/C Product Introduction

• 2.1 General Introduction
• The R290 containing air conditioners can be
  produced cheaper than R22 products, because
• Narrower tubes can be used in the condenser and
  evaporator since R290 has better heat transfer
  properties and a lower pressure drop.
• R290 refrigerant is even cheaper

Please note also R22 air conditioners are
cheaper than R407C and R410A units Conclusion
R290 air conditioners will be much cheaper than
R410A units
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2.1 General Introduction
Safety features Gree R290 designs achieved lower
refrigerant charge size than is currently
required by international standards for R290 air
conditioners (IEC 60335-2-40) Additional
features include a special compressor design and
refrigerant leak alarm system The R290 air
conditioners will achieve CE marking (i.e.,
conform to all EU legislation)
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2.1 General Introduction
Capacity and Size of R290 units
The COP is 3.52 This is better than the A
rating of the EU efficiency labelling for air
conditioners
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2.2 R290 Compressor
2.2 R290 Compressor
Special material inside compatible, anti-aging
design
Exhaust structure more suitable compression
ratio, improved efficiency
Special lubrication oil make compressor
operation more stable and reliable
The compressor COP reached up to 3.4 which is
higher than that of other companies R290
compressors. Grees R290 compressors currently
cost only as much as a R410A compressor. Cost is
likely to go down when production increases.
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2.3 Refrigerant Leak Alarm System
2.3 Refrigerant Leak Alarm System
Function
Should a leak be detected in the AC system
The compressor will stop operating at once.
This avoids high temperature and protects the
compressor The fans will keep on running
(indoor and outdoor) This dilutes the leaking
refrigerant through the air flow and thereby
avoids gathering gas in the small area and
flammable concentrations. A special audible
alarm and flashing light signal will turn on
This alarms the owner to open the door or window
of the room for ventilation and to call the
service telephone number.
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2.3 Refrigerant Leaking Alarm System
Theory of the Alarm System

• As refrigerant leaks out, the performance of the
  system will drop
• The operating parameters of a leaking AC system
  are different compared to a normally functioning
  AC unit.
• As the A/C system leaks, the system pressure,
  refrigerant and air temperatures, electric
  current, etc. will all change
• An electronic control device detects this
  intelligently and recognises that a leak is
  really happening, thereby triggering the alarm
  and shutting the AC down.

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3. Marketing
3. Market development

• The development of the refrigerant leakage
  detection and alarm system will be completed in
  July 2009.
• Mass production of the R290 units will start
  before December 2009.
• Target market
• Primary focus will be in Europe and China
• as experience is gained marketing will extend to
  many other countries

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• Thank you very much
• for your interest
• in the ozone and climate friendly
• R290 technology
• for air conditioners
• Thank you
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