Standard Test Procedure To Characterise
Different Filter Media Under Energy
Consideration
Author(s)
W. Hoeflinger & T. Laminger
Abstract
In the context of increasing energy prices and the imperative of reducing CO2
emissions, the energy consumption also related to dust separators has become the
focus of attention. Further, new stricter regulations for the particle concentration
in the environmental air (PM10 PM2.5) require the improvement of existing dust
separators. The improvement of the separation efficiency of dust separators is
always associated with a higher energy input, in case of a filtering device with an
increase of the pressure drop and other energy inputs during the filtration
procedure. Especially for air depth-filters, used for applications with low dust
concentrations (e.g. ventilation of living and working spaces), a new guideline
\“EUROVENT 4/11” [1] for energy efficient operation has already been
developed. With this method a classification of different filter media concerning
their energy consumption and their separation efficiency in relation to each other
can be done.
For applications with high dust concentrations (e.g. waste gas cleaning of
combustion or cement plants), where so called cleanable dust filter media are in
use, a classification of different cleanable dust filter media can be done by the
standards ISO11057:2011 [2] and VDI 3926 [3]. But these standards make no
statement to their relative energy consumption. In this work an approach was
made to classify different filter media concerning their relative energy
consumption in connection with their separation efficiency.
With a special test rig, which are also used in ISO11057:2011 [2], a total
energy consumption value [Wh/m³] related to the air volume throughput and the
corresponding separation efficiency was evaluated over 30 filtration cycles. This
energy value comprises all relevant energy consumption parts (fan energy and
Keywords
energy consumption, cleanable dust filter, clean gas
Related Book
Other papers in this volume
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