TROPICAL DESIGN 2

CLIMATE

defined a region with certain temperature, dryness, wind, light etc

CLIMATE

an integration in time of the atmospheric environment of a certain geographical location

Temperature

Humidity

Precipitation

Sky Conditions/ Solar Radiation

Wind

Special Elements

CLIMATIC ELEMENTS

THERMAL COMFORT

Human comfort as determined by the ability of

the body to dissipate the heat and moisture it

produces by metabolic action.

PSYCHROMETRIC CHART

A chart relating the wet-bulb and dry- bulb readings from a psychrometer to relative humidity, absolute humidity and dew point

TROPICAL CLIMATE

those regions where heat is the dominant problem, where the annual mean temperature is not less than 20 degrees

TROPICAL DESIGN

This is concerned with countries where discomfort due to heat and humidity are the dominant problems.

Temperature

average mean temperature (dbt) 20 – 30 deg C

Small diurnal temperature change/range 2-5 deg C

Humidity Levels

50% - 100% Relative Humidity

Sky Conditions

– Overcast Sky most of the time a lot of reflected heat/ solar gain

Precipitation –

high during the year – average of 1000mm/yr.

PASSIVE COOLING

A cooling system using a building’s design and construction to maintain a comfortable temperature within the building

Passive design

essentially low-energy design achieved by the building’s particular morphological organization rather than electro-mechanical means.

STACK EFFECT / CHIMNEY EFFECT

The tendency of air or gas in a shaft or other vertical

space to rise when heated, creating a draft that draws

in cooler air or gas from below

CROSS VENTILATION

The circulation of fresh air through open windows, doors or other openings on opposite sides of a room