Breakthrough for higher efficiency with lower operating noise
With the help of a diffuser can now also be the loss to the impeller outlet are significantly reduced.
will Mulfingen, 03.29.2012, issued in refrigeration and cooling systems must be exhaust heat to the ambient air via a heat exchanger. Fans therefore encourage cooling air through the heat exchanger and thus improve the heat dissipation. For very efficient, quiet and durable fans there are a number of opportunities in design and interpretation. A new, passive component, the so-called diffuser, provides a significant improvement of efficiency and noise. Its pressure-increasing effect of minimizing the leakage losses and allows a better adaptation of the fan from any standard heat exchangers.
Each medium can only absorb a certain amount of heat per degree Kelvin. Due to the potential temperature difference and the amount of heat so the required cooling flow rate is fixed. This air flow must be a fan through the heat exchanger under consideration promote. Since refrigeration systems are usually operated at high duty cycle, is an economical use of energy used in driving important because each additional watt costs money. By a suitably-Marinated fan impeller, an air flow is generated. It is separation and backflow be avoided because they produce energy losses and unwanted noise. This procedure is state of the art, all manufacturers now dominate more or less. ebm-papst, the leading manufacturer of motors and fans, is now one step further: With the help of a diffuser can now also be the loss to the impeller outlet are significantly reduced.
