Mercado del Val, Valladolid (Spagna)
Calle Sandoval 2 (2 Sandoval st.)
È un mercato aperto, quindi è possibile entrare e visitare le aree comuni dell'edificio senza alcuna restrizione. Per visitare le aree di restrizione (locali tecnici, ecc.), è necessario contattare con il proprietario
Dato che questo edificio è stato parte del progetto europeo FP7 CommONEnergy, è possibile trovare rapporti pubblici specifici nel web: https://cordis.europa.eu/project/id/608678/es
State of repair
Aim of retrofit
Valladolid City Council
Plaza Mayor 1, Valladolid (Spain)
Construction company and subcontractors
R&D companies within the CommONEergy project
HVAC and electrical engineers in charge of the detailed definition of the HVAC and electrical layouts of the market.
Mattone pieno in basso
Bricks at top
Il vecchio muro è stato sostituito da una nuova facciata in vetro.
Facciata vetrata e nuovi lucernari
The original windows and skylights were not catalogued as a heritage part of the building.
MEASURES TO INCREASE AIRTIGHTNESS
The old roof was completely removed
More info D6.3 Energy Audit "CommONEnergy project"
Reconstruction of the complete envelope (Façade, roof, windows).
DOMESTIC HOT WATER
Heating is covered with three reversible geothermal heat pumps getting temperature from vertical bareholes done in the ground (42 bareholes of 120 m). To cover the energy needs it has been selected a low temperature heating and cooling system with radiant floor on the ground floor and first floor and fan coils in the basement. The is also an AHU which can work also in free-cooling mode and has a heat recovery efficiency of more than 65%.
New AHU (Air Handling Unit). Natural ventilation strategies using the windows and skylights implemented in the contol system. When Natural Ventilation covers copletely the ventilation needs of the market, the AHU is OFF.
Cooling is covered with three reversible geothermal heat pumps getting temperature from vertical bareholes done in the ground (42 bareholes of 120 m). To cover the energy needs it has been selected a low temperature heating and cooling system with radiant floor on the ground floor and first floor and fan coils in the basement.
RENEWABLE ENERGY SYSTEMS
In order to supply both heating and cooling three reversible ground to water geothermal heat pumps are installed, getting temperature from vertical boreholes done on the ground (42 boreholes of 120 m). In order to cover the energy needs it has been selected a low temperature heating and cooling system, with radiant floor on the ground floor and first floor and fan coils in the basement. For the DHW supply, the geothermal pumps will be supported by storage tanks with electric immersion heaters for legionella prevention. The geothermal pumps can produce at the same time DHW and cooling in summer.
Voluntary certificates: No
Primary Energy 326,9 kWh/m2.y
Consumption_estimation_Before: 61,7 kWh/m2.y
Consumption_estimation_After: 20 kWh/m2.y
Consumption_estimation_Calculation_method: Based on primary energy factors from RITE (Spanish Regulation of Thermal Installations in Buildings)
Consumption_estimation_Before: 1300,2 kWh/m2.y
Consumption_estimation_After: 326,9 kWh/m2.y
Description: Internal monitoring network with temperature, RH and CO2 sensors.
Description: Weather Station with temperature, humidity, wind speed, wind direction, precipitation and radiation sensors.
Description: A large number of sensors (Thermal and electrical meters, comfort, etc.) were installed in the market with control and evaluation purposes. The innovative integration of the multifunctional façade together with the ventilation and shading system, in addition to the geothermal heat pumps and other devices, made necessary the integration of a high number of sensors.
The project addressed thermal comfort mainly through natural ventilation and shading strategies. Also the HVAC system was completely redesign.
Yes, the project addressed the IAQ mainly with natural ventilation strategies. Inside the market there were installed CO2 sensors to contol the levels of CO2. Also some punctual measurements of COVs and formaldehide were performed inside the market.
The project addressed visual comfort and for this a new glazzing façade with a shading system was installed to improve as much as possible the daylighting. Also the project installed some luminosity sensors inside the market for the control purposes.
Some punctual measurements of acoustic comfort were developed inside the market.
The total intervention cost was covered with different sources: - European Commission provide a grant through the European Project "CommONEnergy". - Public funds from the Valladolid City Council and Junta de Castilla y León. - Private funds from the owners of the stalls.
emissions_at_use_stage_before_intervention: 193 kgCO2/m2 per m2
emissions_at_use_stage_after_intervention: 48 kgCO2/m2 per m2