CO2 system efficiency

R744 innovations from Japan Part 2: integrated systems and improving CO2 system efficiency in warm climates

In part 2 of our reporting on the CO2 technology innovations discussed at ATMOsphere Asia 2015 we focus on the presentations from Carel, Bitzer, and Danfoss on integrated CO2 systems and technologies to increase the energy efficiency of CO2 in warm climates. These include more traditional systems such as mechanical subcooling and newer ones such as parallel compression and ejectors.

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Supermarket Tradeshow

49th Supermarket Tradeshow: first rack-type CO2 booster system installed by Japanese retailer

In part two of our reporting from the 49th Supermarket Tradeshow (SMTS), which took place from 10-12 February 2015 in Tokyo, Japan, R744.com reports on the first rack-type CO2 transcritical booster system installation, a collaborative project between Japanese showcase manufacturer Fukushima Industries and system manufacturer Nihon Netsugen Systems.

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Carrier

Carrier’s CO2 system addresses China’s data centre demand

Beijing Topnew Info & Tech Co., Ltd has introduced Carrier’s DataCO2MPLETE™ distributed cooling systems, using CO2 as refrigerant, in two large data centres in Beijing. With customised design for heat dissipation in the high-heat and high-density data centres, the system achieves energy savings of approximately 25 percent compared to conventional systems and reduces the cost of initial investment and maintenance with higher equipment reliability.

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Mitsubishi Heavy Industries

CO2 innovations from Japan Part 3: CO2 heat pumps and peak shift technologies

ATMOsphere Asia 2015 unearthed plenty of positives for CO2 heat pump applications as Mitsubishi Heavy Industries explained the field test results for its Q-ton, the world’s first two-stage compressor for commercial use. Meanwhile, Yamato and The Coca-Cola Company demonstrated the benefits of their respective peak shift technologies, the Ultra-Eco-Ice thermal storage CO2/brine refrigeration system, and an award-winning CO2 vending machine.

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