CHALLENGE: Experimental device for evaluating uses Reduced Impact (city Tafraout)

Last modified by the author on 22/04/2015 - 17:34
  • Building Type : Isolated or semi-detached house
  • Construction Year : 2012
  • Delivery year : 2014
  • Address 1 - street : 85450 TAFRAOUT, Maroc
  • Climate zone : [BSh] Subtropical Dry Semiarid (Steppe)

  • Net Floor Area : 110 m2
  • Construction/refurbishment cost : 130 000 €
  • Number of Dwelling : 1 Dwelling
  • Cost/m2 : 1181.82 €/m2
  • Primary energy need
    15 kWhep/
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
51 à 90B
91 à 150C
151 à 230D
231 à 330E
331 à 450F
> 450G
Energy-intensive building
CHALLENGE The building is a second home and experimental platform. It was designed and built as part of a French-Moroccan-Italian partnership involving the National School of Public Works of the State (Lyon) and Public Facilities Directorate (Rabat) and Politecnico di Torino (Turin). The goal is to provide methodologies and tools (numerical and experimental) design and characterization of the overall performance of buildings. This building is also one of the supports for the initiation of a research nucleus in Morocco in order to contribute to improving the energy efficiency of buildings and provide advice and elements of decision support.
The DCI project also has the support of three industrial: SOMFY, ALDES and ATI-ISOLATION
- Goal
The platform "CHALLENGE" is an experimental scale building and finely instrumented actual occupation in order to:
1: Validate thermo-aeraulic models
2: Characterization of hybrid ventilation, heating and cooling passive phase change heat exchangers as well as masking devices.
3: Assessing the potential and relevance of solar systems
4: Evaluate the impact of occupant behavior interiors and overall consumption

Data reliability



    Assistance to the Contracting Authority

    Mohamed El Mankibi

    [email protected]

    Architectural design, design Energy, Thermal Modeling Aéraulic, Experimental Protocol, Control and BEMS,

    Construction company

    AL ANSARY et Fils

    +212 66 2161505

    Gros and second works

    Environmental consultancy

    Direction des Equipement Publics (Ministère de l’équipement, du transport et de la Logistique du Maroc)

    [email protected]

    Logistics Support, Design Thermo-ventilation

Contracting method

Lump-sum turnkey

Owner approach of sustainability

The principle of design and construction approach respects the Moroccan thermal regulation and allows one hand to demonstrate the reproducibility on a large scale (individual houses) on the other. the principle of purchase and information system of the house DEFI allows both the experience feedback on the building behavior and the adoption of best practices by occupants

Architectural description

The "CHALLENGE" platform is a reinforced concrete building in accordance with Moroccan seismic rules. Different architectural consideration were taken into account to improve Energy efficiency CHALLENGE: 1- Orientation South East: to enjoy sunshine Winter and avoid morning overheating was 2- Lack of openness on the facade West (Avoid overheating summer morning and enjoy the temperature rise to less over-ventilation) on level ground floor 3- (Continuous insulation and inertia) 4 - Roof Painting board (gains reduce radiation in summer) 5 - compactness with a central corridor (Gain energy and ventilation efficiency) 6- Openings reduced> 20% of the thermal envelope 7 Double room (North - South) was dual use - Winter.

Building users opinion

Recruiting Volunteer current occupants

Energy consumption

  • 15,00 kWhep/
  • 50,00 kWhep/
  • Other

Envelope performance

  • 0,69 W.m-2.K-1
  • The main architectural components of the platform are: • full slabs from reinforced concrete with secluded terrace • Partitions sandwich cinderblock cinderblock + + Expanded polystyrene • Double glazing with argon fill

  • 1,07
  • EN 13829 - n50 » (en 1/h-1)

  • 7,26


    • Heat pump
    • VAV System
    • Canadian well
    • Individual electric boiler
    • Geothermal heat pump
    • VAV Syst. (Variable Air Volume system)
    • Natural ventilation
    • Nocturnal Over ventilation
    • Double flow
    • Canadian well
    • No renewable energy systems

    An exchanger phase change materials-Air system is developed and during calibration. Installation planned Winter 2016

Smart Building

    The acquisition, monitoring and control system is composed of modules and National Instruments hunted and allows a hybrid control (Automatic - Manual) by integrating simple techniques (digital and PID) and advanced (Fuzzy logic, algorithms génétiqu

    En perspective


    Heat pump: T.One


    T.ONE is an individual heating solution for any type of habitat that also ensures the refreshment in summer. This system implements a heat pump air / air coupled to a distribution plenum and motorized vents. Exclusive Aldes, the system loads a T.One room control for better management of comfort and saving more, adjusting the power of the heat pump and blown air flow. In addition to its exceptionally low consumption, this solution is characterized by its low noise level. T.ONE range of products consist of an indoor unit and an outdoor unit associated with regulation and a complete range of ventilation accessories.

    Double Glazing Argon Filling

    Second œuvre / Menuiseries extérieures

    A reinforced insulation glazing (VIR) has a treatment that is opposed to infrared radiation and forms a thermal barrier, without constituting an excessive obstacle to visible light. A VIR therefore prevents the heat from escaping in winter and return in the summer.

    Canadian well

    Fabrication artisanal sur Place

    Al Ansary et Fils (+212 66 2161505)

    The ground-air heat exchanger is used to supply air in a building by circulating in a pipe buried before that depending on the weather cooled or preheated by using the thermal inertia of the soil. The air serves as coolant while the tube serves as a heat exchanger while channeling the air to the building. The Provençal well, although mainly used as natural cooling system may also be used in winter to preheat the incoming air or to maintain a dwelling frost. It is the same Canadian wells.

    Echangeur Air-MCP

    Laboratoire Génie Civil et Bâtiment (ENTPE-LYON)

    [email protected]

    The Air-exchanger Materials Phase change is used to heat the building in winter, it will be coupled with a solar chimney. A summer release is outstanding experimentation.



    MATLAB ("matrix laboratory") is a fourth-generation programming language emulated by the same name development environment; it is used for numerical calculation. Developed by The MathWorks, MATLAB can manipulate matrices, display of curves and data, implementation of algorithms, creation of user interfaces, and can interface with other languages ​​like C, C ++, Java, and Fortran. MATLAB users (about one million in 20041) are very different backgrounds such as engineering, science and the economy in a context as well as for industrial research. Matlab can be used alone or with toolbox ("Toolbox").


    National Instruments

    LabVIEW (Laboratory Virtual Instrument contraction Engineering Workbench) is the heart of a platform measuring system design and control, based on National Instruments graphical development environment. The graphic language used in this platform is called "G". Originally created on Apple Macintosh in 1986, LabVIEW is used primarily for measurement data acquisition to instrument control and industrial automation. The platform development is running under different operating systems like Microsoft Windows, Linux and Mac OS X can generate LabVIEW code on these operating systems but also on real-time platforms, embedded systems or FPGA reprogrammable components. The latest version of LabVIEW was released in August 2013.

Construction and exploitation costs

  • 20 000
  • 135 000
  • 55 000

Urban environment

Building in an open rural area. The building height has been reduced to 4 m for the development of the surrounding vegetation.

Land plot area

750,00 m2

Built-up area

15,00 %

Parking spaces


Building Environmental Quality

  • Building flexibility
  • indoor air quality and health
  • acoustics
  • comfort (visual, olfactive, thermal)
  • energy efficiency
  • products and materials

Building candidate in the category

Smart Buildings

Smart Buildings

Bâtiment zéro énergie

Bâtiment zéro énergie

Santé et confort

Santé et confort

Green Building Solutions Awards 2015

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Author of the page

Mohamed El Mankibi


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Green Building Solutions Awards 2015