Contractor

Name : Conseil Regional des Hauts-de-France

Contact : M. LEGROS Jerôme - Tél. +33374277049 - Standard. +33374270000 - [email protected]

Construction Manager

Name : Graph Architectes - José OCA mandataire

Contact : M. COLLET Jean-Luc - Tél. +33327381020 - [email protected]

Stakeholders

Function : Manufacturer

Function : Company

Nord France Constructions

M.Cabiddu Bruno - [email protected]

 http://www.fayat.com


Large Large Work

Function : Company

SDI - CRI

M.Petit Jérôme - [email protected]

 http://www.groupe-scarna.fr


Second Work

Function : Company

EGEPP

M.Dolle Christophe - [email protected]

 http://www.egepp-peinture.com


finishes

Function : Company

Delannoy - Dewailly

M.Baccari Vincent - [email protected]

 http://www.delannoy-dewailly.fr


Heating ventilation

Function : Manufacturer

Function : Manufacturer

Function : Company

Satelec

M.Rodriguez Antony - [email protected]

 http://www.fayat.com


electricity

Function : Manufacturer

Function : Manufacturer

Type of market

Global performance contract

Energy consumption

• Primary energy need : 13,10 kWhep/m².an
• Primary energy need for standard building : 71,20 kWhep/m².an

Calculation method : RT 2012

Breakdown for energy consumption : 12.3 KWHEP / M².AN Heating
3.7 KWEP / M².AN ECS
13.3 KWHEP / M².AN Lighting
1.6 KWHEP / M².AN Auxiliary

Real final energy consumption

Final Energy : 8,50 kWhef/m².an

Envelope performance

• Envelope U-Value : 0,30 W.m^-2.K^-1
More information :

Oversized envelope in ITE with parietodynamic chassis

• Building Compactness Coefficient : 0,36

Indicator : n50

• Air Tightness Value : 0,45

Users' control system opinion :

no users yet

More information

The figures communicated do not concern the workshops (building B), which are not included in the RT 2012 calculation, as they are part of processing.
The difference between total consumption items and overall consumption is explained by the building's renewable energy contributions.

Systems

Heating system :
• Gas boiler
• Low temperature gas boiler
• Geothermal heat pump
• Solar thermal
• Canadian well
Hot water system :
• Condensing gas boiler
• Heat pump
• Solar Thermal
Cooling system :
• Reversible heat pump
• Geothermal heat pump
• Floor cooling
• Canadian well
Ventilation system :
• Natural ventilation
• Canadian well
Renewable systems :
• Solar photovoltaic
• Solar Thermal
• Heat pump on geothermal pile
• Heat pump
• Renewable energy production : 58,00 %
Solutions enhancing nature free gains :

Orientation et compacité optimisées,brise-soleil limitant les surchauffes estivales, étanchéité à l'air et isolation renforcées, rafraîchissement par ventilation naturelle activée sans groupe froid.

Urban environment

• Land plot area : 20 549,00 m²
• Built-up area : 28,80 %
• Green space : 8 600,00

The project is set up in a rapidly changing area, on the edge of a protected natural area and currently on the fringe of a business park, on the edge of a high traffic road lined with industrial buildings used for commercial purposes. (car dealerships) or small industry. With a structuring project of urban bypass in progress, the establishment of the URMA takes on an increased importance with a role of urban "bridgehead" in size as in alignment for the road which, freed from a part of its traffic by the bypass, will take on a more urban character than it does today. In anticipation of this new function, bike paths and public bus stops have been developed, which are echoed in our project with dedicated bus platforms and equipment for cyclists, serving the smooth travels of this new entrance. These facilities are in line with the philosophy of the project that has rejected the place of the car in the basement to focus on alternative travel and preserve the adjacent wetland.

Product

R-Volt - aerovoltaic sensor



SYSTOVI

M.Mimaud Laurent - [email protected]

 http://www.systovi.fr


Product category : Génie climatique, électricité / Chauffage, eau chaude

sensors that seal and generate both electricity and hot air with a higher yield than other products on the market by keeping the PV cells at optimum temperature.

good acceptance, need to use a service provider in the exercise, between coverage, electricity and ventilation.

FTA thermo-active foundations



Géothermie Professionnelle

M.Jean-Baptiste Bernard - [email protected]

 http://www.geothermie-professionnelle.fr


Product category : Génie climatique, électricité / Chauffage, eau chaude

thermo-active foundation system

difficulty of integration with conventional heating / cooling systems - technical implementation.

Static extractors Ventilation Natural Activated VNA



Astato

M.Lucet Alexandre - [email protected]

 http://www.astato.com


Product category : Génie climatique, électricité / Ventilation, rafraîchissement

Static extractors ensuring a natural draft on the Natural Ventilation ducts Activated

good acceptance - needed debugging on batch interfaces.

Parieto-dynamic ENR windows



Roche France - Ridoret

M.Jean-Baptiste Ridoret - [email protected]

 http://www.groupe-ridoret.com


Product category : Second œuvre / Menuiseries extérieures

Parieto-dynamic breathable triple glazing chassis

good acceptance
- arises like a classic chassis
- pay attention to the dust on site, sealing of the necessary air inlets and dedusting of the internal air space during the site delivery phase.

ERS - wasteful calories recovery on wastewater



Biofluides

M.Poupel Gregory - [email protected]

 http://www.biofluides.com


Product category : Génie climatique, électricité / Chauffage, eau chaude

heat recovery system on gray unloaded wastewater through an insulated buffer tank and by means of a heat pump.

good acceptance
- take care of the clutter of the system and the heating / plumber interface

Construction and exploitation costs

• Renewable energy systems cost : 2 486 600,00 €
• Cost of studies : 2 440 000 €
• Total cost of the building : 21 830 000 €
• Subsidies : 500 000 €

Water management

The project integrates a rainwater collection tank of 250 m3 supplying all the toilets of the operation by a separate network and covering the total water needs of sanitary facilities for the 1300 students and site staff.

Indoor Air quality

The exhaust air extraction uses the same process, by induced air, as the activation of the thermal wells described below. Each extraction duct, in flat duct to optimize congestion, is deployed in the central position of the building, to have a very low pressure drop, in order to operate by natural and / or activated thermal engine, depending on the climatic conditions. The low pressures involved ensure a hygienic renewal of the premises, even in case of malfunction or breakage of equipment, to ensure air quality of the premises.

In the upper part of the extraction regulator, an air / ice water exchanger makes it possible to recover the calories from the stale air.

It operates in a laminar and turbulent mixed flow in vertical chambers in conductive fins and a peripheral tubular coil, in order to present the optimum of the head losses necessary for the two functions. A final extraction induction, on a variator of uses and resources, makes it possible to overcome the turbulences and to ensure the output flows on the roof. The organization with a vertical tendency of the extraction of stale air, leads to regrouping these conduits in 10 vertical sensors, resulting in 10 collectors expansion. To meet the periods of unoccupancy and energy saving, a stale airflow regulator (in butterfly system or guillotine) regulates the extracutatural to zero flow, excluding specific premises with constant ventilation.

Comfort

Health & comfort :

Thermal activated wells (PTA) in room temperature, building A and B.

The levels of the water table, close and fluctuating, favorable to the heat exchange with the earth offer an optimum return of the exchanges in bored thermal wells.

Essentially in building A service, two tracks generate two peripheral circuits. Pumps are cascaded, with a primary heat sink, tempera- ture, in the form of a conventional sewage pipe on the outside and at the bottom of buildings A and B. This brings air into a secondary pipe. , reserved under the building and in line with the elevations of building A.

Central blowing .

The outer area is blown into the primary heat sink, (diameter 1600), to overcome the pressure loss, exchange with the earth, and enter the secondary puitsthermic (which we also call thermal gallery, since it is under the building ), at atmospheric pressure.

Activation by airinduit.

The temperate exterior is blown into the flat ducts by the induced air effect, a nozzle calibrated according to the required flow rate, and fed by a centralized fan, on a dimmer, regulated according to the indoor and outdoor temperatures.

Introduction byconvection.

The heated air of renewal complementary to the pariéto dynamic glazingsarrive in plinth of the veil BA, under the radiators, to finalize the temperature of comfort.

The renewal air that arrives in the premises is thus always of optimal quality, at constant temperature and hygrometry, without the use of exchangers or filters subject to fouling and through easily cleanable and visitable ducts.

Calculated thermal comfort : TIC entre 28.0 et 29.3 pour TICref entre 30.4 et 32.3 sans production mécanique de froid

Acoustic comfort :

As the pitch is located less than 50m from two noisy streets, the constructive choice in terms of exterior joinery has been the implementation of dynamic parietal windows. Dynamic parietal glazing ensures, among other things, optimum acoustic protection, thanks to the vibratory independence of the 3 glazed walls that compose them.

In terms of interior acoustics, the comfort of the occupants is sought by the implementation of a wood / concrete ceiling in large volumes, associated with acoustic absorbers and the use of soft Flotex-type absorbent floors.

In smaller volumes, the Flotex is associated with false ceilings whose island configuration maximizes sound absorption.

Finally, the use of a very low pressure natural assisted ventilation avoids any risk of parasitic noise blowing or air intake that are often deplored in the case of a VMC installation.

GHG emissions

• GHG in use : 2,00 KgCO₂/m²/an
Methodology used :

RT2012 calculation

• Building lifetime : 60,00 année(s)

Life Cycle Analysis

Eco-design material :

The project incorporates 730m² of wood-concrete floors, leaving the wood soffit and the wooden beams supporting the concrete slab visible in the large volumes of the operation: refectory, multipurpose room, meeting rooms and resource center. This presence of a natural material, visible on a daily basis for apprentices, has a strong educational value beyond its ecological value.

The technical galleries supporting aerovoltaic solar collectors on the R + 1 and R + 3 roofs are made of wood framing, a technique that consumes less energy than conventional wet construction methods.