SPONSORED FEATURE CLIMAVENETA
SUSTAINABLE COMFORT AT APORTI PALACE IN MILAN THANKS TO CLIMAVENETA INTEGRA UNITS
Rising energy costs, incentives on the reduction of consumption and new regulations on energy performance of buildings require to develop a new perspective on the heating and air conditioning. Talking about energy, effi ciency and pragmatism are the only winning path. For Climaveneta it is already a consolidated point of view, expressed in advanced engineering solutions. Among these, the multi-purpose INTEGRA units deserve a note thanks to a constructive logic specifi cally designed for contemporary demands of heating and cooling throughout the year, typical of modern buildings such as hotels, business complex and shopping centres.
One of the most prestigious showcase of this technology is Aporti Palace in Milan, shortlisted at CIBSE Building Performance Awards 2014. The project, coordinated by architects Antonio Citterio and Patricia Viel & Partners, provided a high quality standard in the structure and above all for what concerns the plant design.
In order to increase the energy effi ciency
of the building and reset CO2 and pollutants emissions in the heart of the city, Planning Engineering studio has adopted four multi-purpose heat pump Integra units, ERACS-Q by Climaveneta. To demonstrate the advantages
of Integra solution, Climaveneta carried out an energy analysis on the building allowing to dispose of the basic data for correct simulation of thermal loads. The annual thermal demand of the building was estimated at about 3,835,160 kWh/ year, while cooling at about 1,925,850 kWh/ year. The power absorption of the proposed unit, calculated taking into account the real capacity of the multi- purpose unit to produce for free a portion of energy required is about 1,082,520 kWh. Accepting the rough calculation of the annual effi ciency average as the ratio of total energy output and energy consumption, we get a TER of 5:32, a value absolutely unreachable by any other conventional air source chiller. In case in the same building should be instead provided the solution with standard chiller and boiler, to meet the request of air conditioning in summer and winter given above, primary energy consumption would amount at 3,913,430 h kW/ year (high- performance boiler, medium η = 0.98) + 1,413,990 h kW/ year (high-effi ciency chillers, medium EER = 3.00). It is so easy to calculate that Climaveneta Integra units only consume 2,384,400 kWhper year, saving in primary energy consumption by more than 55%.
In addition to the drastic reduction of running costs, the choice of multi-purpose units instead of chiller plus boiler solution
www.cibsejournal.com February 2014 CIBSE Journal 35
Historic seat of Royal Post, Aporti Palace has now become a new offi ce building.
emissions: the units are electrically powered, so there are no exhaust fumes into the atmosphere at installation.
INTEGRA multipurpose units by Climaveneta overcoming the traditional chiller and boiler system, ensures perfect comfort all year round, without CO2 emissions in the atmosphere, and reduces running costs by more than 55%. The plant works successfully in Aporti Palace and in many other buildings all over the world and should be a winning solution also for future sustainable and innovative projects in the UK.
brings other signifi cant benefi ts such as reduction of technical space to be allocated, having to place one unit instead of two, plant simplifying because exchangers provide water connections and does not require any special reverse side of ‘cold’ and ‘hot’ hydraulic circuits or any auxiliary disposal. Furthermore as multi-purpose unit is self- adaptable to the needs of the plant, it is not expected summer / winter switching and unit will ensure the simultaneous and independent hot and cold water circuits intended for. Finally there are no direct CO2
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