Stakeholders

Function : Designer

Africvs
[email protected]
Green building advisor

Contracting method

Public Private Partnership

Owner approach of sustainability

The building is constructed as a prototype of modern residential building. Passive building techniques are applied to this project such as stack ventilation, radiative cooling, venturi effect, self-shading and building orientation. The building is equipped with thermocouple to study on an effect of these design technique.

Architectural description

2-storey house with 2 bedrooms on the second floor and living space downstairs is made of concrete structure. Upper floor plate is bigger to act as shading for lower one. The distinct feature is a chimney aligned at center of the house to ventilate during the daytime. The roofs are break into 2 pieces and tilted like butterfly wings shape into the chimney to create the pressure different for venturi effect under the roof and gain benefit from night radiation. Moreover, all main functions are categorized as service zone and living zone, oriented and break them by the chimney.

Energy consumption

• Primary energy need : 82,50 kWhpe/m².year
• Primary energy need for standard building : 86,58 kWhpe/m².year

Calculation method : Other

CEEB : 0.0001

• Final Energy : 75,00 kWhfe/m².year
Breakdown for energy consumption :

Lighting 2%
Air condition 86%
Ceiling fan 1%
Equipment 9%
Misc 2%

Envelope performance

• Envelope U-Value : 0,43 W.m^-2.K^-1
More information :

Typical material for wall is composed of lightweight concrete block with cellulose fiber cement outside and 1" polyurethane foam in between to block external heat gain and moisture. For fenestration area, ocean green float glass is utilized due to the low shading coefficient property (SC=0.59) while the visible ray transmittance is high (VT = 0.72) to maximize the benefit from daylight. Roof has double layers to create venturi effect for attic ventilation.

Systems

Heating system :
• No heating system
Hot water system :
• No domestic hot water system
Cooling system :
• Fan coil
Ventilation system :
• Natural ventilation
• Nocturnal ventilation
Renewable systems :
• No renewable energy systems

High-efficient air-conditioners (EER > 12)

Product

Chimney
Africvs Co.,Ltd. | Chimney is a part of architectural design.
[email protected]

Product category : Structural work / Passive system

Vertical cavity for ventilation, most effectively in the daytime

Temperature inside the house is reduced.

Construction and exploitation costs

• Cost of studies : 3 850 €
• Total cost of the building : 38 500 €

Urban environment

Located on a large open space area with prevailing wind most from the south

Land plot area

Land plot area : 224,00 m²

Built-up area

Built-up area : 40,00 %

Green space

Green space : 80,00

Parking spaces

1 parking undercover

Building Environmental Quality