Topic 6 - Building Service Systems

Require the use of efficient machinery and equipment.

Usually expressed as the ratio of the power delivered by a mechanical system to the power supplied to it.

Employs water as the condensing medium and uses pumps to circulate the water through the condenser and out to a cooling tower that ejects the heat to the temperature.

Delivers cooled air inside the building

Convey cooled water supplied to AHUs

Typically accounts for more than fifty percent (50%) of total electricity costs in a centrally air-conditioned building.

The heart of the air conditioning system, typically chillers in large buildings and is important to procure an efficient cooling system.

The use of energy-efficient water heating systems in buildings, by observing minimum power

performance requirements, will help reduce energy consumption due to heating of water.

Describes the equipment used to control the speed of machinery by changing the frequency of the motor that is being operated.

When buildings have outside air or fresh air supply and extract system through mechanical means, using heat exchangers can use the air extracted from the building areas to pre-condition the incoming outdoor air. This