Passive Home Design

7/28/2019 Passive Home Design

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Passive Home Design

Heating and Cooling

By:Mohammad Haiqal Supaat


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What is Passive Home Design?

Climate dependent

Material usage selection

reduces heating and cooling loadsthrough energy-efficiency strategies

energy efficiency is the most cost-effective

strategy for reducing heating and cooling bills


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Terms

Indoor Environment Quality (IEQ)

- A standard for indoor temperature

requirement so that the air conditioning

design and billing cost could be control with

appropriate usage.

Building Envelope

- Heat conduction through the buildings

overall boundary.


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Overall Thermal Transfer Value (OTTV)

- Cut down external heat gained and reducing

cooling load


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What first before start designing?

Energy efficiency determination

Energy audit

Site selection


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Heating

Cooling


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Heating

Allowing high rate of heat being absorbed by

house.

Direct solar gain

Indirect solar gain ( Conduction and

Convection)

Insulation and glazing


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1. Orientation


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2. Roof System


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Thermo Physical

Heat transfer involvement

- Convection

- Conduction- Radiation

Thermal capacity and resistance for every

element in house building need to beconsider.


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Cooling

Remove heat and maintaining human comfort

Reducing heat transfer

Removing heat inside (HVAC) Shading effect. Avoid heat gain either direct

nor indirect.


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1. Window System

Type and design of shading

Composition and type of glass

Obstruction and shading by surrounding,structure and trees.


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2. Construction detail

Infiltration effect

Conduction bridge (Material selection on heat

gain)

Ceiling high and volume

Absorptivity, reflectivity and emissivity.


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Direct

Indirect

Passive Home Design

Documents

Transcript of Passive Home Design