seminar pengenalan kepada spesifikasi standard dan rekabentuk sistem penyaman udara dan pengudaraan...

SEMINAR PENGENALAN KEPADA SPESIFIKASI STANDARD DAN REKABENTUK SISTEM

PENYAMAN UDARA DAN PENGUDARAAN MEKANIKAL UNTUK PENSYARAH-PENSYARAH

IKBN SUMMIT HOTEL BUKIT MERTAJAM

20HB -22HB JULAI 2010

DAY 1

PENCERAMAH:

Ir. MOHAMED AZMI BIN SALIM(B. Eng Mech, (Hons), MIEM, Qualified SPAN, P. Engr)

CGMP Consult (SA0155424-A)

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What is the Air Conditioning System..? Air conditioning is the dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling and ventilation that modifies the condition of air. Air conditioning is an appliance, system, or machine designed to stabilize the air temperature and humidity within an area.

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Types of Air Conditioners

There are various types of air conditioning systems. The application of a particular type of system depends upon a number of factors like how large the area is to be cooled, the total heat generated inside the enclosed area, etc. An HVAC designer would consider all the related parameters and suggest the system most suitable for your space.

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Types of Air Conditioners

1.Window air conditioner- Normally used air conditioner for single rooms. - The compressor, condenser, expansion valve or coil, evaporator and cooling coil

are enclosed in a single box.

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2. Split air conditioner- Comprises of two parts: the outdoor unit and the indoor unit.- The outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve.- The indoor unit comprises the evaporator or cooling coil and the cooling fan.

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3. Packaged air conditioner- This type of air conditioner to cool more than two rooms or a larger space at your home or office.- There are two possible arrangements with the package unit.

- The compressor, condenser (which can be air cooled or water cooled), expansion valve and evaporator are housed in a single box. The cooled air is thrown by the high capacity blower, and it flows through the ducts laid through various rooms.

- The compressor and condenser are housed in one casing.

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4. Central Air Conditioning system- Used for cooling big buildings, houses, offices, entire hotels, gyms, movie theaters, factories etc.- If the whole building is to be air conditioned, HVAC engineers find that putting

individual units in each of the rooms is very expensive initially as well in the long run. - Cooling big halls, malls, huge spaces, galleries etc is usually only feasible with central conditioning units.

Components of Central Air Conditioning Systema. Water side

- Cooling tower

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- Chiller

- Condenser pump

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- Chilled water pump

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The function of chiller, cooling tower, condenser water pump, chilled water pump is to chill the water and circulating the chilled water to the AHU & AFC through a series of piping system.

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Piping schematic for chiller plant room

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b. Air side- Air handling unit

- Fan coil unit

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AHU & FCU serve the purpose of supplying or circulating the cooled or comfort air to the condition space trough a series of duct work.

Duct work material :G.I SheetAluminium Sheet

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Duct work installation and connection to AHU & FCU

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5. Precision Air Conditioning- Unlike common commercial air conditioning systems, these precision air conditioning units are designed to run continually, require little maintenance, and provide precise control of temperature and humidity. - Standard air conditioners quickly lose efficiency and break under continual operation.- Precision Air Conditioning System (PAC) should be installed for critical areas eg.

Server Farm, Network Centre, Robotic Tape Drive Area, Command Centre and Tape Storage & Printer Centre, where they require 24 x 7 operation hours.

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Mechanical Ventilation

Mechanical Ventilation helps to draw out stale and impure air from one area and bring in fresh air, thereby improving the quality of indoor air. Exhaust fans are Mechanical Ventilation device that typically ducted to the exteriors of a building, through which bad indoor air can effectively be removed.

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Types Of Mechanical Ventilation

Mechanical ventilation are classified into various types, mainly depending on the type of mount and the location where you need to install the fans. The different types are:

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1. Ceiling Mounted Fans

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2. Inline Fans

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3. Centrifugal Fans

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3. Axial Fans

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3. Wall Mounted Exhaust Fans

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Categories of Mechanical Ventilation in Construction

- Smoke spill system- Staircase pressurization system - Lobby pressurization system- Car Park Smoke Spill System

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1. Smoke Spill System

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Smoke Spill System

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2. Staircase Pressurization System

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Staircase Pressurization System

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3. Lobby pressurization system

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Lobby pressurization system

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3. Car Park Smoke Spill System

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Car Park Smoke SpillSystem

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Discussion

a. Suggest other air conditioning system which is not mention in this note.

b. Suggest other mechanical ventilation normally use in the building which is not is not mention in this note.

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THE ENDEND OF DAY 1

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SEMINAR PENGENALAN KEPADA SISTEM PENYAMAN UDARA DAN PENGUDARAAN

MEKANIKAL DALAM INDUSTRI PEMBINAAN

SUMMIT HOTEL BUKIT MERTAJAM20-22HB. JULAI 2010

DAY 2

PENCERAMAH:Ir. MOHAMED AZMI BIN SALIM

(B. Eng Mech, (Hons), MIEM, ACEM, Qualified SPAN, P. Engr)

CGMP Consult (SA0155424-A)

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Mesyuarat koordinasi ke-2 membincangkan, draft konsep

design

LA dikeluarkan kepada perunding

Mesyuarat penyelarasan projek & ‘project briefing’

Pihak arkitek membentangkan konsep design termasuk susun atur

bangunan (draft) kepada client

Submit draft to client

Komen dan tambahan keperluan dibincangkan supaya ditambah

baik konsep rekabentuk tersebut

Tender

‘Client’ mengarahkan pihak konsultan C&S dan M&E menyediakan ‘document’

‘process tender’

Terlibat:Client, Architect,QS,M&E engineer, Civil engineer

A

Terlibat:Client, Architect,QS,M&E engineer, Civil engineer

Arkitek mengemukakan draft rekabentuk yang telah

ditambah baik

DiterimaDitolak

Kemukakan semula untuk perbincangan

Lukisan dalam bentuk ‘softcopy’ dikemukakan

kepada C&S engineer dan M&E engineer

BPerunding M&E dan C&S

mengemukakan draft rekabentuk masing-masing

dalam mesyuarat penyelarasan koordinasi Ditolak

Kemukakan semula untuk perbincangan

Diterima

C

Ditolak

re-do

Proceed document

tender

Diterima

Introduction to ACMV Project Tender

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A - Menbincangkan tentang ‘requirement’ daripada pihak ‘client’ seperti terdapat dalam SOA- ‘Client’ akan mengarahkan pihak arkitek menyediakan draft lukisan bangunan dan susunatur dalam jangka masa yang ditetapkan.

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B - Proses rekabentuk dijalankan dalam jangkamasa yang ditetapkan oleh pihak ‘client’.

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C - ‘Document process tender’ :

Lukisan tenderTechnical Data B.Q Specification Unit Rate Anggaran Harga

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Tender Document Preparation and Management of Tender Document

The scope of M&E Consultant during the document preparation are as below:

- To prepare the ACMV tender drawings.

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Tender Document Preparation and Management of Tender Document

The scope of M&E Consultant during the document preparation are as below:

- To prepare the ACMV tender drawings.- To prepare the Specification of ACMV Services- To prepare the Bill of Quantity (BQ).- To prepare the Schedule of Unit Rates.- To prepare the Technical Data Sheet.- To prepare the Cost Estimation.- To check the design of the system comply with the local authority requirement.

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ACMV tender drawings.

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ACMV tender drawings.

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ACMV tender drawings.

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Air conditioning design

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Heat Load Calculation(Refer Sample calculation in the handout page 1 to 5 and

Attachment 1 to 9)

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Design of Ductwork(Refer Sample calculation in the handout page 1 to 9, table 1 to 5 and

Figure 1 to 15)

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Bill of Quantity (BQ).

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Bill of Quantity (BQ).

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Bill of Quantity (BQ).

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Schedule of Unit Rates.

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Schedule of Unit Rates.

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Schedule of Unit Rates.

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Technical Data Sheet.

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Technical Data Sheet.

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Cost Estimation.

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Cost Estimation.

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Cost Estimation.

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Preparation of Project Schedule.

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Preparation of technical submission.- Tender Drawing- Catalogue- Quotation

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Catalogue

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Catalogue

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Quotation

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THE END65