Tower in Benguela, Angola

Situation: Benguela, Angola (see, on Google Maps)
Project date: 2007
Surface: 30.000 m2

This tower is a 28 storey building which contains commercial, residential and office areas situated in Benguela, Angola.  I3 CONSULTORES is the studio behind the project, architects Eduardo Leira and Raimundo Argüeso.

Our project consists in the construction of a commercial gallery, a large supermarket and three commercial buildings aside (one dedicated to do-it-yourself stores, one for electrical appliances and another for automobile services). The commercial gallery is open to several commercial and entertainment activities integrated thanks to the use of pedestrian-only streets that structure and provide unity to the building. These activities include different-sized stores,  cinemas, restaurants, a gym, a bowling alley and family-entertainment.

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We used state-of-the-art thermal simulations to analyze the efficiency of the smoke evacuation system designed for the atrium in the residential area. You can watch one of these simulations here:

XIV International Congress on Project Engineering

On the 2nd of july, GEASYT received a prize for the paper presented at the XIV International Congress on Project Engineering organized by AEIPRO.

The paper on “Efficiency of the Fluid-Dynamics Simulation for HVAC of the Salón de la Villa del Palacio de Telecomunicaciones”, presented by GEASYT, obtained the consolation prize from the General Board of the Industrial Engineering Association.

The paper presents the fluid-dynamics simulation process used for the design and evaluation of the HVAC system designed for the Patio de la Villa, the 24 metre high glass-covered courtyard in Madrid’s new Town Hall (read more).

For the complete version of the paper in English (pdf) click here.

In addition, GEASYT presented its work on “Seasonal Storage of Solar Energy in combination with High Efficiency Systems. Artificial Geothermics” in which the bases for seasonal storage systems are presented, in order to mitigate the time lag between solar energy generation and consumption.

For the complete version of the paper in English (pdf) click here.

Thermal Simulation: Patio de Cristales of Madrid’s Town Hall

The Patio de la Cristales, opened in May 2010 (read more, in presents itself as a very complex space concerning comfort conditions both during the summer and in winter. Covered by a glass vault with an area of around 2500 m2 and with a height of over 20 metres, along with high occupation indexes, the space is an HVAC challenge.

Fortunately, the possibilities that computational fluid dynamics (CFD) models bring to the table allow for thermal simulations to be performed, resulting in vital data concerning the viability and efficiency of different HVAC designs.

GEASYT S.A. presents system with low-speed air inlets at ground level, paired with underfloor heating/cooling, that concentrates the energetic effort in the lower area of the courtyard, guaranteeing comfort conditions in the occupied space.

Thanks to the use of a CFD model, the space is modelled and extreme scenarios are simulated both in summer and winter conditions, with an occupation of one thousand people;  including in the simulation thermal loads from solar radiation, the effect of the underfloor heating/cooling system and shades projected by the constructive elements in the patio and its occupants. The air inlets and outlets are also modelled with their corresponding control system.

The obtained results, with an emphasis on temperatures in the courtyard and air speed, prove the system’s efficiency and its inherent advantages concerning energy efficiency.