Air Conditioning & Mechanical VentilationSystem installation at Clifford Pier Development

Presented by : abc

Site Location Plan

AddressNo - 80 Collyer Quay, Singapore 049326

Project Outline -Building/Development

The Clifford Pier Development Project - a luxury boutique hotel.- including entertainment outlets, F&B with casual family-oriented restaurants as well as fashion inspired retail shops.- a stylish rooftop bar, rooftop swimming pool with 360° views of the Marina Bay waterfront and famous Singapore skyline.

Application of ACMV System

Central Air Conditioning System 1- Water-cooled chiller 2- Cooling tower 3- Air Handling Unit/Fan coil unit Mechanical Ventilation System 1- Kitchen Exhaust ventilation 2- Plant room ventilation

Central Air Conditioning SystemChilled water chillers are used to produce chilled water to AHU and FCU which cool the air in its respective space(s), and then the chilled water is re-circulated back to the chiller to be cooled again.

Indoor conditions of AC space for comfort cooling

Design dry bulb temperature 23 ° C – 26 °CMin dry bulb temperature 22 ° CDesign relative humidity 55 %– 70 %Air movement 0.15m/s – 0.50m/sMax air movement 0.7 m/s

How is air circulation in the AC space

Typical installation of Equipments

AHU installation- Installation

involved with piping, ducting & control wiring.

Typical installation of Equipments

Chilled water pump installation

- Pump installation involved with inertia block, electrical power supply, etc.

Problem encountered

Insufficient Air Flow

High friction loss=Less CFM(volume) When less air is

delivered, the system has to run longer to achieve the desired comfort level.

Problem encountered

Lower cost and ease of installation have made flex quite popular particularly.

SS 553- (ACMV) have revised & restricted maximum flexible duct length from 4meter to 2 meter.

Problem encountered

Generating Noise from Equipment and fittings

- AHU return inlet is too close to the wall.

- Required width 750 mm width; instead , only 550 mm.

Due to carelessly installation, lack of supervising & poor coordination.

550

Problem encountered

This caused two acoustical problems: unstable fan operation leading to surge and rumble, direct exposure of inlet noise to the mechanical room wall.

wall

THANK YOU

Without the need for thermal

comfort, there will be no need for

Buildings…