8/19/2019 Jet Fan Selection & Simulation Process

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Jet Fan Selection& Simulation

R & D, Kruger

Content

• Jet Fan Selection

• Simulation Process

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Jet Fan Selection

• Questionnaire for Jet Fan Selection

 A Company

Project

Contact Person

B 1 Fl ow Rate c mh / cm s / cfm ( Pls de let e where i nappl ic ab le )

2 Outlet velocity requirement m/sThrow requirement m/s @ m

3 Application (Pls tick accordingly)

Car Park Tunnel Stadium Warehouse

Others (Pls specify )

4 Appl ica ti on Norm al Smoke Ext ra ct (P ls g o t o 6 a)Both (Pls go to 6a)

5 Fan type Axial Cabinet

6 Fan Spec

a. Axial

Max Diameter mm Max Power KWFan Speed rpm Attenuator D

b. CabinetNozzle Number pcs Nozzle Diameter mmMax Cabinet Size (H) (W) (L) mm

Max Power KW

7 Sould Pressure Level dB(A) @ m

8 Other Requirement

Form Filled By Date

Questionnaire for Jet Fan Selection

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Questionnaire for Jet FanSelection

1 Flow Rate cmh / cms / cfm (Pls delete where inapplicable)

2 Outlet velocity requirement m/s

Throw requirement m/s @ m

3 Application (Pls tick accordingly)

Car Park Tunnel Stadium Warehouse

Others (Pls specify )

4 Application Normal Smoke Extract (Pls go to 6a)Both (Pls go to 6a)

Questionnaire for Jet FanSelection

5 Fan type Axial Cabinet

6 Fan Spec

a. Axial

Max Diameter mm Max Power KWFan Speed rpm Attenuator D

b. CabinetNozzle Number pcs Nozzle Diameter mmMax Cabinet Size (H) (W) (L) mmMax Power KW

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Questionnaire for Jet FanSelection

7 Sould Pressure Level dB(A) @ m

8 Other Requirement

Form Filled By Date

Simulation Process

• Flow Chart

• Information Collection

& Model Set-up

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Flow ChartRequest In

(w/ Some Info - Spec, CAD Drawing

FeasibilityStudy

 Yes

No

Model Set-up & Simulation

InfoSufficient?

 Yes

Not

Satisfied?

Suggest: Change Design orSearch for Local Professional

Simulation Provider

Communication and Collection ofInfo (DWG, Spec etc)

ResultAnalysis

Satisfied

Result Output

Design

Modification& Revision

No

Information Collection& Model Set-up

• Information Sheet for CFD Task V1.0

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Information Sheet for CFD Task V1.0

Project Information

 A1 ProjectCode

 A2 ProjectName

 A3 Owner 

 A4 StartDate

 A5 Deadline

 A6 ProjectOfficer(s)

 A7 ProjectAsst/ContactPerson

 A8 ContactNumber 

Architectural Information

B1 FloorHeight

B2 MinimumClearance Height

B3 BeamSpecification

Jet Fan Information

C1 Model

C2 VolumeFlow Rate

C3 Power 

C4 Height(Floor to Fan center)

C5 Angleto horizontal

Supply Fan Information

D1 Model

D2 VolumeFlow Rate(each fan)

D3 NumberofFans Installed

D4 Height(Floor to Fan center)

D5 Markingsfor SupplyFans/Grilles

D6 SizeofSupplyAirGrilles

D7 BottomHeight ofGrilles

Exhaust Fan I nformation

E1 Model

E2 VolumeFlow Rate(each fan)

E3 NumberofFans Installed

E4 Height(Floor to Fan center)

E5 Markingsfor ExhaustFans/Grilles

E6 SizeofExhaustAirGrilles

E7 BottomHeight ofGrilles

Simulation ModeN or ma l F ir e

F SteadyState Simulation

Types of Contour Plot Required

^Standard Plot Plane Height Range Plane Height Range Plane Height Range

G1 LatitudinalPlane (FrontView)

^Upon Request Plane Height Range Plane Height Range Plane Height Range

G2 TransversePlane (Plan View)

^Upon Request Plane Height Range Plane Height Range Plane Height Range

G3 Longitudinal Plane(Side View)

Special Requests

H i. Transient Time Intervals t1 t2 t3 t4 t5 t6

Highdifficulty andTime-consuming Simulation

NotRecommended

ii.Others

SmokeConcentration

SmokeConcentration

SmokeConcentration

Speed

Speed

Temperature

Temperature

Speed Temperature

Transversal Plane

Longitudinal Plane

Latitudinal Plane

Information Collection& Model Set-up

• Structure System

• Ventilation System

• Other SystemTransportation System

Production System

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Structure - Pillars

Structure - Pillars

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Structure - Pillars

Structure – Walls/Partition

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Structure – Walls/Partition

Structure – Walls/Partition

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Structure - Rooms

Structure - Rooms

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Structure - Beams

Structure - Beams

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Structure - Beams

Structure – Floor & Ceiling

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 Ventilation – Supply Fans

 Ventilation – Supply Fans

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 Ventilation – Supply Fans

 Ventilation – Supply Fans

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 Ventilation – Exhaust Fans

 Ventilation – Exhaust Fans

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 Ventilation – Exhaust Fans

 Ventilation – Jet Fans

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Transportation – Cars

Result Review

• Different Heights:

Jet Fan Center – To Check Jet Flow Profile

1m (0.7m) – Height for Children’sBreathing Zone

2m (1.7m) – Height for Adults’ BreathingZone

3m (2.7m) – Height for Smoke Flow(Under Ceiling)

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Result Review

Result Review

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Result Review

Result Review

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Result Review

Thank You!

Have a Nice Day!