Stair Ssl Ventilation And Pressurization (sg Acmv Hvac).xls

Software Tools Excel Spreadsheet Discipline Subject Stairs, SSL Ventilation Building Services and Pressurisation Calculations

File No.

Status

Industry/Sub Discipline

3

Mechanical

Copyright of Beca Group Ltd. Not to be copied or disclosed to any other party without written consent.

Document version control

Stairs, SSL Ventilation and Pressurisation Calculations Version 1.0 1.1

Owner SP1 SP1

Author(s) SP1 KKW

Verified by SP1 SP1

Date 13/07/2011 30/01/2013

Document Status 1 - Beca Best Practice 2 - Industry Best Practice 3 - General use 4 - Use with Caution 5 - Unverified Comment First Issuance Formatting update

Status Definition Status

Short Form Description 1 Beca Preferred Practice

Recognised and agreed by Beca Technical Directors as being preferred practice over other options. Documented verification, and approved with signature(s).

2 Industry Preferred Practice

Recognised and agreed by Beca Technical Directors as meeting preferred industry practice.

3 General use

Suitable for general use within Beca. Has been verified by a senior Beca person (Associate or above).

4 Guidance 5 Unverified

Template Ctrl

Detailed description

Probably OK, though no formal review or verification carried out. Document typically of Beca origin. Recognised as offering some value but origin unknown and/or not verified. Use with caution.

413342698.xlsx

Software Tools

File No.

Status

3

Excel Spreadsheet Discipline

Subject

Industry/Sub Discipline

Building Services

Stairs, SSL Ventilation and Pressurisation Calculations

Mechanical

Copyright of Beca Group Ltd. Not to be copied or disclosed to any other party without written consent.

Stairs, SSL Ventilation and Pressurisation Calculations File Generation Instructions Open this file with Meridio & Macros enabled. (Close and reopen if needed.) Before commencing any data entry, save as per "SaveInstructions" (next tab) to avoid loosing Office 2010 functionality. For jobs with multiple packages (e.g. mixed developments), create seprate 'Work Sheet' for each type of development of the package within this file. DO NOT create separate files for each system. (See Data Entry Instructions for creating new sheets.)

Enter Job Details Here Please enter the details below for incorporation into the calculation sheets for printing. Job Name 1 Job Number Date gineer's Name

AAAAAAAAAAAA 1234567 XX/YY/ZZ CCCCCCCCC

Warnings Make sure you open the file with Meridio & Macros enabled ! (If not close and reopen.) Read Data Entry Instructions below. Read cell comments within working sheet: Cells with comments are identified by a small red triangle in corner of cell: Move cursor over cell to display comment, or select "Review" menu and "Show/Hide Comment" or "Show All Comments". Do not delete rows from the 'Work Sheet'. To remove M&E disciplines from the cost estimate that are not applicable, select the '+' buttons at the left hand side of the sheet.

Data Entry Instructions Work Sheet Light grey cells are for data entry by the user. Clear (unshaded) cells within the data entry field are automatically calculated from other cell data entries. Create new sheets Right click relevant sheet tab, select "Move or Copy", check "Create a Copy", select new work sheet loaction, & "OK". (Alternatively hold down "Ctrl" key, select relevant sheet tab & drag to right.) Right click new tab, select "Rename", insert suitable abbreviated name.

Instructions

413342698.xlsx

Instructions for Saving this Workbook It is important that you follow these steps when you save/check in for the first time to ensure that the spreadsheet retains all Office 2010 functionality. When you Save for the first time. "Save As" to job directory using the following instructions (you may need to 1 click "Enable Content" button first). Confirm Title 2 Select the correct File Plan Location 3 Click on this button 4

5

Select this File Type - .xlsm

6 OK/OK The file will be checked into Meridio, be locked in your name and be available to edit as required. NOTE: If you do not select File Type at the point of Saving/Checking in for the first time you will receive a Warning, saying you will lose functionality if you Continue.

Click Cancel Return to 4. above and select the required File Type shown via this button, and continue through to Step 6.

Save Instructions

413342698.xlsx

4 of 7

Job Name: AAAAAAAAAAAA

Job No: 1234567

Stair Number:

Page No:

By: CCCCCCCCC

of

Fill in data in shaded cells

Date: XX/YY/ZZ

Fire Service Lobby / Smoke Stop Lobby /Stair Mechanical Ventilation Calculation SSL or FSL Lobby Ventilation Floor Lobby Item

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 M&E Transfer Floor Lower Roof Level

Height

Area (sqm)

(m)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Total Volume (cum) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

ACH Normal

4

SUBTOTAL SF

TOTAL FSL SFL Stair MV

Fire

10

10%

Per Lobby Fire Normal (cmH) (l/s)

Normal (cmH)

Fire (l/s)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0

0

0

0 413342698.xlsx

5 of 7

Job Name: AAAAAAAAAAAA

Job No: 1234567

Stair Number:

Page No:

By: CCCCCCCCC

Fill in data in shaded cells

Date: XX/YY/ZZ

Shaft =

FSL SFL Stair MV

of

0.00 m2

Louvre =

0.00 m2

413342698.xlsx

6 of 7

Job Name: AAAAAAAAAAAA

Job No: 1234567

Stair Number:

Page No:

By: CCCCCCCCC Stair Ventilation Floor Item

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 M&E Transfer Floor Lower Roof Level

Stair Area (sqm)

Height

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

(m)

FSL SFL Stair MV

Fill in data in shaded cells

Date: XX/YY/ZZ

Total Volume (cum)

ACH Normal

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SUBTOTAL SF

4

10%

TOTAL Shaft =

of

0.00 m2

Louvre =

Per Floor Normal Normal (cmH) (l/s)

Fill in Data in shaded Cells

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0

0

0.00 m2

413342698.xlsx

7 of 7

Job Name: AAAAAAAAAAAA

Job No: 1234567

Stair Number:

Page No:

By: CCCCCCCCC

of

Date: XX/YY/ZZ

STAIRCASE PRESSURISATION CALCULATION Design Requirement a. Outward air flow velocity from staircase of not less than 1 m/s across 2 doors leading from any 2 successive storey and also that at the ground floor when all the 3 doors are fully opened b. The pressure differential between the staircase and the office area is within the range form 25 Pa to 50 Pa (about 2.5mm to 5 mm WG). c. The force required to open any door at the door handle shall not exceed 110N d. The condition in above a) and b) will be restored within 15 seconds after each disturbance by the operation of the door Design Calculation 1) Estimation of air volume flowing past door when 3 doors are opened a) Size of door is 0.00 m(H) x 0.00 m (W) b) Area of door is 0.00 m2 ( 1.00 -leaf door) c) Based on 1m/s, airflow through door when door is opened: = 0 m2 x 1 m/s x 60 = 0 cmh per door

Staircase serves Simultaneous doors sec x

60

10 3

storeys in total open doors

min

For opened doors, the air quantity is =

0

cmh

or

0 l/s

2) Estimation of air leakage through doors when doors are closed a) Design criteria based on BS 5588:Part 4:1978 b) Leakage Are Calculation: Based on 50 Pa pressure difference and interpolate of data from Table 3. From Table 3

Type of door Case A

Single-leaf in rebated frame opening into a presurisation space

Case B

Single-leaf in rebated frame opening outwards from a presurisation space

Case C Selection:

Double leaf with or without centre rebate Case B

I) From Case B, the leakage area per crack length = The door used has a crack length of c) Calculation of air leaks through doors: Refer to Eqn 2 of sub-section 5.3.1.1 Qe = 0.827 where, Qe = Ae = Pe =

x

Size 2m (H) 0.8m(W) 2m (H) 0.8m(W) 2m (H) 1.6m(W)

0.02 m2 / 5.6 m = 0 m. Therefore, the leakage area =

Ae

x

Crack Length (m)

Leakage Area (m)

5.6

0.01

5.6

0.02

9.2

0.03

0.003571 m 0m x 0.003571 m =

0 m2

(Pe)^0.5

The air supply to the pressurised space (m3/s) The total effective area of the leakage paths out of the space (m2) The pressurisation level of the pressurised space (Pa)

i) (Case A) Qe =

0.827

x 7

The leakage for

0 nos. of doors =

Therefore, the total door air leakage =

=

x

0

50 0.5 0.0 x

cmh

or

= 7

0.000 m3/s = = 0 cmh

0 cmh

0 l/s

3) Estimation of air leakage through stair shaft & unknown points BS 5588:Part 4:1978 recommends that 25% leakage is allowed for stair shaft leakage and unknown leakage

Stair Shaft Leakage = 4) Required Fan Airflow a) The fan airflow required =

SF 10% TOTAL AIRFLOW =

Stair Pressurisation

0 cmh

door airflow = 0 0 cmh

0 0 cmh

or

+ +

or

0 l/s

Door Leakage 0

= + +

0 cmh Shaft leakage 0

0 l/s

413342698.xlsx