On March 21st, Midea CAC held a press conference in Chongqing, China to announce its new high efficiency dual-stage "full falling film" centrifugal chiller. Testing organizations have remarked on the high performance of this product, and that the outstanding innovation found within its design was considered to be advanced by international standards, which merited its award of the World Leading Certification.

Midea CAC has three production bases, in Shunde, Chongqing, and Hefei. Chongqing's focus is on R&D, and the production of water-cooled screw chillers. This facility was awarded as the "Chongqing Industrial Technical Center" in 2006, and received the "National High-Tech Enterprise" award in 2008 and 2011, in addition to the "National Industrial Technical Center" distinction in 2012.

With the recognition and support of the government, the industry's awareness of the importance of energy efficiency and environmental friendliness is gradually increasing. For the further development of its energy-saving offerings, Midea launched the dual-stage full falling film centrifugal chiller R&D project in 2010. The R&D team consisted of foreign and domestic experts, and through more than two years of research, this project overcame many technical challenges to finally reach its goal. The dual-stage falling film centrifugal chiller employs 20 patents, including 5 invention patents and 15 utility patents, which include the advanced full falling film technology, dual-stage compression plus vapor injection technology, pre-whirl guide vane technology, intelligent control system, to name just a few.

The impressive patents that make up this chiller have led to remarkable performance. Initially, the coefficient of performance (COP) reached 7.06W/W at AHRI-standard conditions, and the integrated part load value (IPLV) reached up to 11.6. With the new full falling film evaporator, the heat exchanging efficiency is significantly improved. Refrigerant charge volume is also minimized-40% lower compared with the flooded type, which makes this the "greenest" centrifugal chiller. Moreover, this unit has "free cooling" technology, which consumes zero power during the transition season, which is most economical and efficient for providing cooling.

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