Ruba 186644

– environmental climate, high socioeconomic, activities in

limited spaces

•Workers Productivity and Industry Production

– Need comfortable environment (to gain good productivity). Industry Production that need to control humidity level to produce products.

•Healthconcern

– Environment pollution (dust particles and noise pollution)

•Tools

– Electronic apparatus, computers

• STATUS SYMBOL

-Accomodation (such as hotels, resorts, residential). A need

for comfort and status symbol of an individual.

• Benefit of Air Cond

-Hinder noise, smell and controlled the desired

environment

- Prevent dust and harmful particles in the air - Extract heat for comfort

- Well ventilated

- To control humidity and air distribution

• Building orientation

- Prevent any surface from facing the West-East sun to reduce

penetration of heat.

• Building enclosure

- Thick layering and good building material can control heat to

penetrate into building excessively

• Fenestration

- Prevent any openings that could lessen the air cooling effect.

• Surrounding environment & climate

- Prevent reflected sunlight from other buildings ( e.g. from glass,

building materials, etc.) that could add heat into your building

• Activities and equipment

- Human and equipment releases heat there might need high extra cooling capacity to taper the heat in building.

There are 3 basic units: 

1) Window Units

2) Package Unit

3) Separate Unit 

Types of all system
1.  Dual duct System 
2.  Variable Air Volume System (AV) 
3  

Constant Air Volume, variable 

temperature System (CAV) 

-is a basic air conditioning system set up with refrigerant directly picking the heat and rejecting it through the central unit