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What is ASPIRE2. A new pipe modeling verification tool for VESDA that replaces ASPIREASPIRE2 predicts pipe network performance to ensure good design practiceSample Hole FlowSample Hole PressureSample Hole Effective SensitivitySample Hole Transport Time. What is ASPIRE2. ASPIRE2 brings new featu
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1. ASPIRE2 Overview June 2004
2. What is ASPIRE2 A new pipe modeling verification tool for VESDA that replaces ASPIRE
ASPIRE2 predicts pipe network performance to ensure good design practice
Sample Hole Flow
Sample Hole Pressure
Sample Hole Effective Sensitivity
Sample Hole Transport Time Flexible design includes branches and H design. It also provides AutoBalance and Groups too!
Flexible design includes branches and H design. It also provides AutoBalance and Groups too!
3. What is ASPIRE2 ASPIRE2 brings new features that allow
More flexible pipe design options
Configurable design parameters by country
A scalable Bill of Materials that supports both regional VFS and generic pipe programs
A Installation Data Pack that clearly guides the installation process
Extensive On-line help with context sensitive navigation to aid learning
4. What is ASPIRE2 A program that accommodates both the Novice and Expert User
Wizards quickly establish pipe designs, a bonus for the novice or infrequent user
The introduction of Groups and Applications allows advanced users the flexibility of more demanding designs
5. Improved Usability Color coded feedback to clearly indicate pipe performance
Context sensitive help guides the users design
Navigation Tree that represents entire project
Status overlay on icons
Unknown
Warning
Error Unknown – design has changed but a Calculate or AutoBalance has not been run.
Warning – design is outside of Design Parameters but it should work.
Error – design is outside of operational parameters.Unknown – design has changed but a Calculate or AutoBalance has not been run.
Warning – design is outside of Design Parameters but it should work.
Error – design is outside of operational parameters.
6. Improved Usability Pipe Wizards allow faster pipe design
7. Design Parameters To accommodate more flexible designs ASPIRE2 calculates and interprets all design parameters
Transport Time (default < 60 seconds)
% Hole Balance (> 50%)
Hole Pressure (Pa)
Hole Sensitivity (%Obs)
End Cap Sensitivity Factor
Design parameters can be saved as an “Application” and used later
8. Design Parameters System Performance measurement has been improved and simplified.
Existing users will be familiar with Hole Balance, Hole Share and Transport Time
The new metrics are Group Balance and Transport Time
Why the Change? ASPIRE2 supports an unrivalled range of pipe designs and provides an automated tool (AutoBalance) to calculate hole sizes that meet specified targets
Sensitivity, Flow, Pressure and Transport Time
9. Design Parameters Transport Time remains a fundamental measure of performance and the limit is now configurable.
Balance has been redefined to cover “Groups” (default = all holes on a detector including the end cap)
Group Balance % = lowest/highest sample hole flow in a group
Share has been dropped and replaced by a measure called “end cap sensitivity factor”
When an end cap us used primarily to improve Transport Time
10. Design Parameters It simplifies design. The common user only has to hit Balance and Transport Time and not juggle three design parameters.It simplifies design. The common user only has to hit Balance and Transport Time and not juggle three design parameters.
11. AutoBalance Rather than working out the holes sizes manually ASPIRE2 does it for you automatically
User selectable drill bit sizes
AutoBalance chooses hole sizes that achieve user specified Design Parameters
Flow,
Pressure,
Transport Time,
Sensitivity Range
12. Calculate For those familiar with ASPIRE, users can continue to design pipe networks manual and obtain performance data by pressing Calculate
Pressing Calculate works out pipe performance based on current hole sizes
13. Groups To allow different alarm sensitivities on a single pipe ASPIRE2 automatically sets the appropriate alarm level with AutoBalance
14. Groups Question - When are Groups Used?
Answer – When a single detector requires different sample hole sensitivities (hole diameters)
Examples
Where a single pipe monitors both a ceiling void and room environment (via capillaries) the user may require higher sensitivity in the room
A multiple pipes monitor two rooms where a lower sensitivity is required in one
When a higher sensitivity is specified for return air monitoring and the detector is also monitoring at ceiling level
15. Flexible Design Improved accuracy in modelling
Multiple Branch pipes
Capillary tubes
Drop pipes
Wider temperature range
Based on completed and new research
Martin Cole (PhD)
Roy Singh (Masters)
16. Support through On-Line Help Comprehensive On-Line Help
Context Sensitive Tool tip
Microsoft Based structure and search capability
17. Bill of Materials Supports regional pipe sets
Can be calculated at Project, Detector or Pipe level
18. Installation Data Pack (IDP) Collates all design notes for the installer
Provides 3D diagram of design
Better information will allow higher quality installation
19. Frequently Asked Questions Where do I find the share in ASPIRE2 ?
The concept of share no longer exists in ASPIRE2
All holes default into the same ‘Group’
Default = all holes on a detector into a single group.
It is recommended that end caps are used as just another sampling point.
If large eng caps are used to reduce Transport Time then the issue of relative sensitivity of end caps to that of the rest of the sample holes is now dealt with by the End Cap Sensitivity Factor. See FAQ on End Cap for details.
20. Frequently Asked Questions End cap Holes in ASPIRE2 ?
End cap holes should normally be used as a sampling point.
If you need to improve the transport time you can use a larger hole in the end cap. This will trade off reduction in balance and blockage detection for better transport time.
If your detector is set up to use end caps to minimize transport time, ASPIRE2 places end caps in one group, sample points into another and calculates an End Cap Sensitivity Factor (ECSF): the ratio of the average sensitivities of holes and end caps.
For example, an ECSF of 3 means that the end cap is three times as sensitive, on average, as a hole. If you are using end caps as regular sample points, ECSF isn't calculated.
The recommendation is ECSF <3.
21. Frequently Asked Questions Are ASPIRE and ASPIRE2 compatible ?
As ASPIRE2 is a new program and introduces a range of new improvements to help users create better designs it is not possible to import old ASPIRE files into ASPIRE2
For old designs continue to use ASPIRE
Fortunately, the need to revisit old designs in infrequent!
22. Frequently Asked Questions Why change the design parameters to measure good design in ASPIRE2 ?
With ASPIRE parameters it is possible to create uncommon designs that meet the parameter targets yet not perform well.
The new parameters ensure consistently good designs being applied
The new design parameters accommodate all elements to consider in a good design
23. Frequently Asked Questions What are the performance hurdles for a good design in ASPIRE2 ?
A balance of greater than 50% and close to 100% as possible.
A transport time of less than 60 seconds
If the end cap is used to improve the transport time then ECSF of 3 or less.
Note that the definition of Balance is different from ASPIRE
24. Frequently Asked Questions ASPIRE2 has Groups. What are Groups?
A Group is a collection of sample holes that require similar design parameters.
For example, a group of holes protecting a specific area or object, eg a ceiling void or return air grill
Using groups ASPIRE2 can automatically design networks that have different coverage requirements (for example, a pipe in the ceiling needs holes to sample not only the offices below but also the ceiling void).
Can set different sensitivity targets for different Groups
Can include or exclude any Group from AutoBalance
Can place any hole for a detector into any Group for that detector
Groups exist per detector as default
25. Takeaways New User interface, Pipe Wizards and AutoBalance simplify and accelerate the design process
More flexible designs can be modeled
Improved design parameters ensure consistently good design can be achieved
Groups offer more flexible and advanced design
Bill of Materials function supports regional pipes programs simplifying the quotation and order process
Application allows previous design experience to be applied on future projects