Composite Climate

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    HIGH

    PERFORMANCE

    BUILDING IN

    COMPOSITE

    CLIMATECOMPOSITE

    Ar. Kruti Desai

    Masters of Urban and Regional

    Planning (cont.)

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    1) Latitude (distance from the equator),

    2) Altitude (height above sea level),

    3) Topography (surface features),

    4) Distance from oceans and large lakes,

    5) The circulation of the air.

    Accordingly, there are 5 major types of climates:

    1) Hot and Dry

    2) Warm and Humid

    3) Cold and Dry

    4) Composite

    5) Moderate

    Factors affecting Climate

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    In India most of the

    region falls under 2 types

    of climate: composite

    and hot and dry

    The only difference

    between and hot and dry

    climate is Composite

    regions experience

    higher humidity levels

    during monsoons.

    Composite

    Composite climate

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    1) Ambient Temperature:Summer: 32-43C during day and 27-32C at night

    Winter: 10-25 C during day and 4-10 C at night.

    2) Relative humidity:20-25 % in dry periods and 55-95% in wet periods.

    3) Precipitation:500-1300mm Per year

    4) Winds: Summer: Winds are hot and dusty

    Winter: Dry cold winds from the north east

    Monsoon: Strong winds from the south east

    5) Sky condition: Summer: occasional haze;

    Winter: clear;

    Monsoon: overcast and dull

    characteristics of the compositeclimate

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    HIGH PERFORM NCE BUILDINGSAccording to Energy Policy Act of 2005 (Public Law 109-058),

    Highperformance buildingmeans a building that integrates and

    optimizes all major high-performance building attributes, including

    energy efficiency, durability, life-cycle performance, and occupant

    productivity.

    Basic needs for high performance building:

    Climate sensitive architecture

    Use of Eco friendly materials Energy efficient design

    Preservation of natural eco system

    Use of renewable energy

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    Design FeaturesWater bodies for evaporative cooling

    White or any light coloured exterior surface

    Appropriate orientation and shape of the buildingUse of trees as wind barriersRoof insulationThick walls/ cavity walls/ jali/ hollow brick wallsPergolasWalls and glass surface protected by

    overhangs, fins and treesCourtyards, wind towers and other openings

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    Use of Passive means rather thanactive means

    Passive design strategies Indirect cooling includes ventilationand stack effect and venture effect, roof pond, earth airtunnel, courtyards and wind scoops and wind towers.