Parallel Plus Explained
Parallel Opening: Review of Natural Ventilation Testing to prove the theory… Addressing new requirements Parallel Plus – The Features Dynamic Testing Summary
Benefits of Natural Ventilation: Occupancy Comfort Reduced Carbon Footprint Lower installation costs Reduced maintenance costs Smoke evacuation solutions Freedom of architectural design
So Why Parallel? Reflectivity High carrying capacity Provides occupant safety Balanced ventilation
Ventilation Formats: ď‚§ It has always been perceived that ventilation could be achieved through the use of different opening methods with varying degrees of effectiveness.
Proving it: BRE Testing ď‚§ Test program commissioned at the Building Research Establishment (BRE) to evaluate the various faĂ§ade opening styles.
Proving it: BRE test facility
Air Flow Analysis: Top Hung
High air speed within the room
Low room temperature
High draft risk
100mm opening required to maintain ambient temperature
Air Flow Analysis: Top Hung Incoming fresh air enters at a relatively high air speed resulting in large temperature differences and consequently high draft risk
Air Flow Analysis: Bottom Hung
Low air speed within room
In-effective air circulation
Low draft risk
110mm opening required to maintain ambient temperature
Air Flow Analysis: Bottom Hung Incoming fresh air moves downwards, mixing with the warmer room air resulting in low draft risk but minimal air exchange
Air Flow Analysis: Parallel
Very low air speed within room
Effective air circulation
Low draft risk
40mm opening required to maintain ambient temperature
Air Flow Summary: Parallel â€˜It is clear that a Parallel opening vent provides a good configuration for natural ventilation with unconstrained inlet and outlet flow pathsâ€™ Ref. BRE Report No. 239-111 August 2007.
Parallel Windows Must:
Maintain parallelism Offer increased carrying capacity Incorporate low operating forces Provide proven endurance
Parallel Plus: the benefits New features provide consistent parallel operation
Parallel Plus: Manual Operation Design changes now allow vents up to 200 Kg to be operated manually negating the use for synchronised motors.
Parallel Plus: Resistance to Racking Un-affected by lateral wind speeds of up to 60 mph.
Parallel Plus: Resistance to Gust Loading Tested to withstand positive wind loads of 100mph.
Parallel Plus: Resistance to Gust Loading Tested to withstand negative wind loads of 100mph.
Parallel Opening: Endurance Securistyle Parallel Test Rig - Computer controlled Product tested in excess of 30,000 cycles. Operating forces recorded throughout the test.
Parallel Plus: The Complete Product Manual Operation up to 200 Kg Adjustability to maintain parallelism Minimal opening to achieve adequate ventilation Synchronised motor requirement no longer essential International patent application filed
Thank you, any questions?