FASD700 & FHSD700 Range

ASPIRE2

Computer Modeling software

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What is ASPIRE2 ?ASPIRE2 brings features that allow more flexible pipe design options:• Configurable design parameters by

country• A scalable Bill of Materials that

supports both regional 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

• The introduction of Groups and Applications allows advanced users the flexibility of more demanding designs

• EN54-20 hole sensitivity approach

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What is ASPIRE2 ?ASPIRE2 predicts pipe network performance to

ensure good design practice

• Sample Hole Flow

• Sample Hole Pressure

• Sample Hole Effective Sensitivity

• Sample Hole Transport Time

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•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

– The value is unknown.– Warning– Error :Indicates that the figure

is outside the parameters you have specified for your project

Improved Usability

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Improved UsabilityPipe Wizards allow faster pipe design

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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

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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

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Calculate

Pressing Calculate works out pipe performance based on current hole sizes

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GroupsTo allow different alarm sensitivities on a single pipe,

ASPIRE2 automatically sets the appropriate alarm level with AutoBalance

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GroupsQuestion - 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 single pipe monitors two rooms where a lower sensitivity is required in one of them

• When a higher sensitivity is specified for return air monitoring and the detector is also monitoring at ceiling level

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Support through On-Line HelpComprehensive On-Line Help• Context Sensitive Tool tip• Microsoft Based structure and search capability

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Bill of Materials•Supports regional pipe sets

•Can be calculated at Project, Detector or Pipe level

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Installation Data Pack (IDP)•Collates all design notes for the installer

•Provides 3D diagram of design

•Better information will allow higher quality installation

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Commissioning report

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Principle of Aspirating Smoke Detection

Sampling Flow• pressure differential at the detector and a pipe is

satisfied by transporting air through a series of sample holes

• more holes results in less pressure at each hole (pressure/no of holes)

• the further along the pipe, the pressure to be satisfied is less

• pressure = flow• flow is directly proportional to relative sensitivity

Vented end-cap to improve transport time

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Good ASD Design

• Achieves consistent sampling sensitivity throughout the entire pipe network

• Considers between achieving consistent sampling at each hole and ensuring the longest transport time is acceptable– ASPIRE2 allows the user to specify the

required sensitivity and transport time– ASPIRE2 users set appropriate holes sizes to

achieve the above

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Optimising System Performance

•Hole Balance

•Transport Time

•End Cap Sensitivity Factor

•Sensitivity vs Dilution

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Sampling Hole BalanceGroup Balance % =

lowest/highest sample hole flow in a group

The importance of balanceThe greater the balance percentage, the closer the

sensitivity becomes between the extremes of sampling holes

Default Balance = 70%Minimum Balance = 50%

4.7 6.56.26.05.85.75.55.45.25.15.04.94.8

Balance = x 100 = 72%Most Flow

= 6.5

Least Flow 4.7

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Transport Time•Transport Time remains a fundamental measure of system performance.Transport time is how long it takes for smoke to get from a sampling hole to the detector (usually we consider the furthest sample hole to the detector)

•To comply with the BFPSA Code of Practice, transport time must not be more than 120 seconds

•It is recommend to use a target transport time of 60 seconds or less. For an optimum system, transport time should be as fast as possible

•Aspire2 is configurable to allow you to set your target transport time (can be used under EN54-20 targets for classes A,B or C)

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End Cap Sensitivity Factor

• An end cap is used primarily to improve Transport Time

• 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.

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System Sensitivity v DilutionSample hole sensitivity = detector Fire 1 sensitivity divided by the percentage of air flow provided by individual sample holes.

Fire 1 set to 0.1% Obs/m

4.7% 6.5% 6.2% 6.0% 5.8% 5.7% 5.5% 5.4% 5.2% 5.0% 5.0% 4.9% 4.8%

0.10.05= 2.0% Obs/m full scale

Detector F1 SensitivitySample Point Flow =

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Summary Optimising System Performance

•Balance : Provide for a minimum balance of 50%

•End Cap Sensitivity Factor <3

•Provide for a smoke target transport time of 60s or less 120s is acceptable under BS5839

•Consider detector sensitivity and dilution ratio

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End cap usage

• Create a balanced design : This increases the sensitivity of detection for each hole as air can only come into the pipe network through sample holes. By default 2 mm holes are used. Every hole of the detector (included end caps) are assigned to a single group. Do not drill end caps at too high diameters to avoid bad balance

• Use endcaps to reduce transport time : This option uses holes in the endcaps to allow more air into the pipe network and improve the transport time by moving samples to the detector faster. By default 4 mm holes will be used. With the design, end caps are excluded from the main group and assigned to another one named en caps.

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Some practical tips• To balance the flow : As pressure along the pipe reduces,

use slightly larger holes further away from the detector

• In the case where the pipes length is long :– the designer may need to incorporate an end cap hole.– A large hole at the end of the pipe “accelerates” the sample

air along the pipe length– The sampling rate of all other holes is reduced (satisfying the

pressure differential)– The sensitivity of all other holes is reduced (flow = sensitivity)

• Always start a pipe network design without an end cap and introduce it if Auto Balance cannot achieve an acceptable sensitivity and transport time results with the sample holes alone

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Running ASPIRE21- If the program has been closed, double-click then ASPIRE2 icon on your

desktop, or alternatively, select Start | Programs | GE | ASPIRE2. (Each time you start ASPIRE2 it will automatically open a new project)

2 - Create a new project and rename it Training _ASPIRE2” (using right click on new project). Your file will be saved as training_ASPIRE2.aspire2

3 - Fill in the first page with all details project (Address – Contact – Installer – calculated by)

32

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Exercise 1 : Primary detectionComputer room height : 3,5mDetector installed at 1,5m Space between sampling holes : 30cm (6 by AHU)

3,5m

2m 5m 2,5m

1,5m

9,75m

17m

AHU1

AH

U2

AH

U3

0,5m

2m

2m

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Add a detector1. Add a new detector and rename it ‘’AHUs’’. You should give each

detector a meaningful name so that the installer will easily be able to determine the detector location.

2. On the general window, use ’’create a balanced design’’

3. and FHSD724DC allow you to increase the aspirator speed which will increase the speed of air in the pipe network. Leave speed at default value (5) and increase if necessary (low hole flow, low pressure, bad transport time)

4. Look at all settings in the window : Fire threshold, T°, transport time….

2

3

4

1

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Add a pipe1. Add a new pipe

2. Rename it as ‘’AHU1’’

3. For the exercise, click on simple pipe

4. Enter the following values to have a first approach of the design– Total pipe length : 10m– Hole Separation : 0,3m– First hole position : 8m– Number of bends : 3

5. Click on next and check the values in the new window (pipe and hole diameter). Change end cap to 0mm as there is no need of end cap drilled

2

1

3

5

4

44

4 5

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1. In order to have the layout according to the design, change the value of the relative distance and direction of the Bends : 1st bend at 2m Left, 2nd at 5m Forward and 3rd at 0,5m Left.

2. First hole is at 30cm far from 3rd bend. Change relative distance.

3. We only need 6 holes : Select hole n°7 and delete it by clicking on the red cross.

To refine the design

F

L

3

L

2

1

3

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To refine the design1. Click on calculate button to see if the design meets

your design criteria : Sensitivity / Transport time / flow / pressure 1

1

2

2. Click on view / 3D view. This will allow you to see a 3-D view of the pipework.

3. Continue exercise with AHU2 & AHU3. Use if appropriate copy & paste function

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Exercise 1 : Results

3D View (above the room)

Pipe 1

Pipe 2

Pipe 3

3D View (facing the detector)

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Exercise 1 : ResultsSummary

Sampling point sensitivity (future)

Group details

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Exercise 2 : secondary detectionRoom Height : 3,5mDetector installed at 1,5m Space between holes : 5m max (BS6266) - ambient and void floor

2,5m

2,5m

2,5m

2m

2m

2,5m

AHU1

AH

U2

AH

U34,5

m

5m

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Exercise 2 : Results

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EN54-20 approach1. ASPIRE2 allows you to specify a particular detector threshold

class to achieve EN 54-20 compliance

2. You may specify multiple threshold levels for this detector (for example Alert = Class A, Alarm = Class B and Fire 1 = Class C).

3. Click on apply to display the value required. Here 0,096%, 0,287% and 0,637%

2 2

3 3 3

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Exercise 2 : ResultsAmbient

Void floor

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Exercise 3 : Detection in cabinets

Room height : 3,5mDetector installed at 1,5m Cabinets : H=2m L=80cm

2m

AH

U3

AH

U2

AHU1

4,5m

1,5m

4m

1,5m

0,8m

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Exercise 3 : Results

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Exercice 4 : Case study

110m Tool Department Height : 3,5m

20m

30m

20m

Office + Showroom Area Height : 2,5m

Open Air Area

Location of sampling holes to complying with BS5839 for total protection (tool dep. + Showroom + offices)

Detectors Installed at 2m

Warehouse Height : 10m

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Case study : a solution

Showroom

x

x

x

x

x

x

x

x

x

xxx

FHSD720C

IFT1

FHSD720C

VSM4Aspirati

on system network

Fire system

loop

Fire Panel

FHSD720C

FHSD721C

FHSD721C

FHSD721C

FHSD721C

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Flow Balance Needs to Improve

•Check that the size of the sampling holes used is relatively the same. A small increase in the size of holes is to be expected as you get further away from the detector. Large differences in holes size will need to be reviewed to improve the balance.

•Use the Auto Balance functions to determine the appropriate hole size.

•Reduce the size of the end cap hole.

•If the pipe has a collection of sampling points in the pipe and capillaries. Remember that the holes will need to be slightly larger than the hole size used in the pipe.

•You could also try a different pipe configuration. Use a T or H instead of one long pipe.

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Hole Flow Needs to Improve

•Check the hole sizes being used. Increasing the hole size and re-calculating should resolve this problem.

•FHSD700 range detectors allow you to increase the aspirator speed and the flow of air in the pipe network. Select the detector in the tree view. If the aspirator speed is displayed in the details panel increase the speed and recalculate the design or use Auto Balance to see if the transport time is now acceptable.

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Hole Pressure Needs to Improve

•Check the hole sizes being used. Decreasing the hole size and re-calculating should resolve this problem.

•FHSD700 range detectors allow you to increase the aspirator speed and increase the speed of air in the pipe network. Increase the speed and recalculate the design or use Auto Balance to see if the minimum hole pressure is now acceptable.

•The pipe may be too long. If the pipe is protecting a room, try using a T or H shaped pipe network instead.

•There may be too many holes for the type of detector chosen. Either select a more powerful detector or add another detector to the project.