Energy efficient cooling

Blue e+ systems use state of the art technologies, packaged in a way that delivers flexibility, safety and ease of handling. 

Key to the efficacy of the Blue e+ is Rittal’s patented hybrid system. "The hybrid system increases energy efficiency significantly,” says Steffen Wagner, Rittal’s head of climate control product management. "It uses a clever combination of a compressor cooling device and a heat pipe to take maximum advantage of passive cooling. The compressor only kicks in when passive cooling becomes insufficient to meet demand.” 

Blue e+ units are said to be six times more efficient than a conventional cooling unit at a part-load of 15% in heat-pipe mode. At a part-load of 65%, in hybrid mode, with both the compressor cooling device and heat pipe in operation, Rittal says Blue e+ is four times more efficient than a conventional unit. 

The energy efficiency of the compressor cooling is also very high. DC motors power both the fans and the compressor, while inverter technology adjusts the compressor and fan speeds so the cooling output matches demand at any one time. 

"Initial tests have shown that thanks to the high energy efficiency of new cooling units, energy savings of up to 75% are possible,” says Wagner.