The German OEM is developing an air-cooled CO2-water/glycol chiller for AC and other applications.
Designed for small-to-medium stores, the system includes parallel compression to cut energy use.
Optidrive Coolvert designed for CO2 condensing systems.
Patton also cites lack of training on digital systems.
The installation, with ejectors and parallel compression, is for Australian retailer Tong Li Supermarket.
FTE system is expected to offer 7-10% energy savings compared to standard transcritical system
Imperial College-Sainsbury’s partnership recommends parallel compression, ejectors, heat recovery in transcritical systems.
Study of industrial applications sees parity of those systems in Orlando and Atlanta, and better CO2 performance in Northern cities.
Retailer expects energy savings to yield a five-to-seven year ROI on premium paid for equipment, one of a small number of ammonia systems installed in stores worldwide.
Articulated bus in Nuremburg features two CO2 heat pumps, in the front and rear section.