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6
Scope of Use
Key applications for the Pulse technology includes:
Establishing the air permeability of existing domestic and non-domestic buildings to quantify energy
losses and to identify ventilation risks.
To demonstrate the improvements achieved with the installation of measures that improve air
tightness.
Pre-compliance quality assurance checks on new build commercial and domestic properties.
Testing the integrity of other enclosures where air tightness may be critical such as containment labs,
clean rooms, gaseous fire suppression rooms and refrigeration chambers.
6.1
Pulse Property Size Limitations
Much like other air permeability testing methods, only a guideline can be offered as to the suitability of Pulse
for a given application. Due to varying levels and leakage characteristics of buildings, results may not be
obtainable even for properties within the following guidelines. To ensure successful testing, it is recommended
that users oversize the Pulse unit to be used.
Build Test Solutions maintain a publically accessible Pulse system sizing guide available online here:
https://www.pulseairtest.com/sizing-guide.html
Above: Example screenshot of the online Pulse system sizing tool. Available at
6.1.1
Estimate Pulse Unit Needed by Calculation
The Pulse air receiver delivers a flow rate of 322 m3/hr @ 4Pa with system capacity simply increasing by this
same amount for each additional air receiver added:
Size of Air Receiver,
Charged to 10Bar
Flowrate @4Pa
(m
3
/hr)
Single 40L Pulse Air
Receiver Unit
323
One Additional Air
Receiver (80L total)
646
Two Additional Air
Receivers (120L total)
969
