Stakeholders

Function : Designer

Casetta & Partners

 http://www.casettaepartners.it/en/


The architectural design, the thermal envelope design and the airtightness design, the bioclimatic analysis, the MEP design and the PHPP calculation systems, as well as the "project management" and the site and work supervision has been carried out by the

Function : Thermal consultancy agency

University of Bergamo

 https://en.unibg.it/


The department of "Turbomachinery and Energy Systems" of the University of Bergamo with the lead of prof. Ing. Antonio Perdichizzi and ing. Giuseppe Franchini led transient analysis in dynamic state, on which basis the MEP systems in the building were siz

Energy consumption

• Primary energy need : 143,00 kWhpe/m².year
• Primary energy need for standard building : 300,00 kWhpe/m².year

Calculation method : Other

CEEB : 0.0002

Breakdown for energy consumption : Calculations according to PHPP:
143 kWh/m²a - the primary energy is for all energy services in the entire building (cooling, domestic hot water, household electricity and auxiliary electricity)
Cooling and dehumidition demand: 50 kWh/(m²a)
Cooling load: 9,7 W/m²

Envelope performance

• Envelope U-Value : 0,10 W.m^-2.K^-1
More information :

Exterior wall
Plasterboard (12,5 mm),
mineral fibre insulation (75 mm),
mineral fibre thermal and acoustical insulation (75 mm),
plasterboard (12,5 mm),
timber frame construction with mineral fiber insulation (200 mm),
plasterboard (12,5 mm),
EPS-insulation (180 mm),
exterior rendering
U-value = 0.076 W/(m2K)

Basement floor / floor slab
Flooring, screed (60 mm), XPS-insulation (20 mm), perlite added screed (155 mm), XPS-insulation (225 mm)
U-value = 0.108 W/(m2K)

Roof Flat roof
Sealing sheet (thermoplastic elastomere), XPS-insulation (200 mm), OSB (15 mm), mineral fibre insulation between rafters (280 mm), plasterboard (25 mm)
U-value = 0.076 W/(m2K)


• Building Compactness Coefficient : 0,58

Indicator : EN 13829 - n50 » (en 1/h-1)

• Air Tightness Value : 0,48

More information

Monitoring results to come soon

Systems

Heating system :
• No heating system
Hot water system :
• Heat pump
Cooling system :
• Reversible heat pump
• Fan coil
• Floor cooling
Ventilation system :
• Double flow heat exchanger
Renewable systems :
• Solar photovoltaic
• Renewable energy production : 100,00 %

185 kWh/m²a renewable energy is generated (in relation to the projected building footprint)

Solutions enhancing nature free gains :

Limit unwanted external heat gains through appropriate insulation thickness, glazing, shading, airtightness, ventilation with heat recovery. Use of geothermal energy especially for cooling, photovoltaic system with battery storage technology and highly ef

Smart Building

BMS :

Smart management and control system which interacts with the changes of the external heat and humidity.

Urban environment

This pilot project has been built on a spare plot owned by the customer MBRSC, a governmental research body. Around the building, during the construction phase, greenery has been setup to enhance the "value" of the building itself.

The position itself suffers from weak urban connections (no metropolitan, buses, ecc...), primary because it is already in the "suburbs" of the city. As far as facilities are concerned, the building is close to "Mushrif Park", which is a 1300 acre family-oriented park in Dubai. It is located in the eastern part of the city (near the suburb of Khawaneej), about 16 km (10 mi) from the traditional center of Dubai. The park was created in early 1980 by Dubai Municipality and was hugely expanded and refurbished in 1989.

Moreover, the building is close to the "Al Khawaneej" Walking and Cycling Track. Mainly, it is located in a zone with farm houses.

• Land plot area : 1 500,00 m²
• Built-up area : 19,00 %
• Green space : 800,00

Product

Passive House Planning Package (PHPP)



Passive House Institute

[email protected]

 http://passivehouse.com/


Product category :

The Passive House planning package is an energy balancing tool made up of a series of excel spreadsheets. It is based on International Norms and can be used for all buildings worldwide.

The Passive House Institute is developing the PHPP according to systematic evaluation and comparison with monitoring data and validated building simulation programs such as DYNBIL. Moreover, all the practical experience from building projects is continuously being integrated in the package.

The reliability of the calculation results and ease of use of this planning tool has already been experienced by several thousand users.


To plan this project, the software PHPP and TRNSYS have been used.

GHG emissions

• GHG in use : 30,00 KgCO₂/m²/year
Methodology used :

CO2 factors GEMIS 4.6 in PHPP, includes cooling, domestic hot water, household electricity and auxiliary electricity