Enquire Now! Contact Us ISO9001 Certified Twitter Facebook LinkedIn Youtube Email Difference Between Mixer Efficiency and Mixture Quality Difference Between Mixer Efficiency and Mixture Quality Unfortunately, these terms are often used interchangeably, especially in process specifications for static mixers. It is important to understand the difference between mixer efficiency and mixture quality in order to correctly specify the performance requirements of a static mixer. Mixture quality (Coefficient of Variation – CoV) defines the mixing objective and, for most applications, a CoV of 0.05 will ensure complete homogeneity. Mixer efficiency, on the other hand, indicates how the mixing objective is reached and not the objective itself. The same mixture quality can usually be achieved by both inefficient and efficient designs of static mixers: An inefficient mixer design will have a relatively high pressure drop and/or a long mixing length An efficient mixer design will have a relatively low pressure drop and/or a short mixing length BHR Group Ltd has developed an interesting method of comparing the efficiencies of different designs of static mixers on the basis that a mixer with zero energy consumption (no pressure drop) and with zero length (instantaneous mixing) would have a theoretical 100% mixing efficiency. In this illustration four different static mixers (M1, M2, M3 & M4) are used on the same mixing system with identical process conditions, to achieve the same mixture quality (CoV). The mixer lengths (mixing times) and pressure drop (energy consumption) are then plotted:- M0 represents a theoretical mixer with 100% efficiency M1 is the most efficient mixer M2 is less efficient in terms of mixing time M3 is less efficient in terms of pressure drop M4 is less efficient in terms of both mixing time and pressure drop The largest savings in additive consumption and energy are only available from the most efficient design. Detailed comparisons of mixer efficiencies for all the commonly available proprietary mixers, for both pipe and open channel designs, are available to members of BHR’s research consortiums (see research & development). Search Search Submit Latest News Statiflo Spreads Across Africa November 25, 2021 Statiflo Wins Award for Exporting Excellence November 3, 2021 Statiflo’s Team Find Successful Formula for CHEMUK 2021 September 27, 2021 Back on the Road! Statiflo are Heading to CHEMUK 21 July 15, 2021 Statiflo Makes Waves with New Scottish Water Deal July 7, 2021 Latest News Statiflo Spreads Across Africa November 25, 2021 Statiflo Wins Award for Exporting Excellence November 3, 2021 Statiflo’s Team Find Successful Formula for CHEMUK 2021 September 27, 2021 Back on the Road! Statiflo are Heading to CHEMUK 21 July 15, 2021 Statiflo Makes Waves with New Scottish Water Deal July 7, 2021 Contact Us Statiflo International +44 (0) 1625 433 100 enquiries@statiflogroup.com Statiflo Corporation +1 (413) 684 9911 enquiries@statiflogroup.com Statiflo GmbH +49 (0) 2261 913570 enquiries@statiflogroup.com Statiflo Inc. +1 (416) 756 2406 enquiries@statiflogroup.com Latest News Statiflo Spreads Across Africa Statiflo Wins Award for Exporting Excellence Statiflo’s Team Find Successful Formula for CHEMUK 2021 Social Tweets by Statiflo Copyright Statiflo Group - All Rights Reserved You can learn more about cookies at AboutCookies.org. If you wish to stop cookies, or find out more about how we use them, click here.