Transoceanica Headquarters

TRANSOCEANICA BUILDING The building of the corporate Group Transoceánica, answers in its design to the implementation of a system of energy efficiency oriented to reduce demand, improve the quality of workspaces and adopting a respectful attitude to the environment. Comission and Design. In the development of the Project 3 conditions of the commission itself were faced, first at the request of the client, the building becomes part of a master plan made in Germany by the planning office Krause Bohne Gmbh, which defined the occupation of the site and the use of curved forms, by integrating a future development along with other office buildings. Second, the energetic concept of the building, with emphasis on the climate project and also for the rest of the specialties (Electric, Lighting, Sanitary and Central Control) was developed by the German office Bohne Ingeniure, with which it was maid a joint work to define concepts of design that the Project had to answer architecturally to achieve the sustainability goals required. Third, the building site, in front of the Lo Castillo Aerodrome, which has an exigent normative regarding constructability, land occupation and maximum height, forcing the development of a extended project in a terrain of generous proportions. Base don the foregoing, emerges a 3 level office building and 2 underground parking levels, composed of a main body conformed by a great hall of full height delivering to two wings of open plans for offices, plus and independent body in the north part for Auditorium and Casino, which connects through an exterior marquise, integrating it to the building and the site. The shape proposed seeks to optimize the solar orientation, favoring natural light, ensuring views of the exterior from every enclosure and developing a careful treatment of facades to avoid unwanted thermical increases or loses. It was interesting giving answers and guiding a process marked by formal restrictions and the use on new Technologies, with the view and elements characteristics of architecture, strengthening the role of the architect as head of a multidisciplinary process and as main guest in the mission of providing better places to live in. Technical Characteristics In the design stage the evaluation and modeling of the energetic efficiency system was incorporated, according to which were chosen the following chapters, that channels the architectonic response: - Passive Systems. - Active Systems. - Renewable Energies. The passive systems incorporate Design Elements like location, orientation, solar control systems, use of natural Light, renewable materials, local plants, deck insulation, facades, thermical bridges analysis, etc. in order to reduce energy demand before elaborating the design of the technical systems. All this is highly efficient and doesn’t imply relevant additional costs. As an example, this implied a facade design in layers composed of DVH crystal, of low emissivity, factor U=1,4 W/m2k, plus a system of automated awnings on the exterior, complemented by a wood skin, that protects from radiation, ensuring exterior view. The efficiency is oriented towards the welfare of people rather than lower energy consumption, therefore, not having a direct relation with the energetic demand, acoustic analysis were incorporated to optimize the quality of spaces through the proper material choices. The active systems incorporate the design of the Technical Elements like artificial lighting, climate, ventilation, water consumption and water heating, equipment selection, etc, implementing for example, indirect lighting with digital ballast that accurately supplement missing light regarding the contribution of natural light. Cooling and heating consists of a capillary system in polypropylene, of German manufacture, which is installed under slabs in the layer of gypsum plaster, improving cooling through the temperature of surfaces, decreasing demand on the air temperature (Wind chill conforms in 50% by air temperature and in 50% by the temperature of surfaces in the enclosures). This lowers the threshold temperature of the liquid transmitter operating between 16°C min., 35°C max. Air renewal is done through “Ventilation Source`, this is incorporation of fresh air at low speed (0,2 m/seg.) through the floor, which rises by convection wherever heat emanates from objects (persons, equipments, etc.) which is then recovered and conducted towards the air handler to precool or preheat the air entering through a heat recovery. The success of the above depends on a monitoring system, registry and analysis of all the information of the building, which is why a Central Control system was designed that permits, in an estimated period of 3 years, to adjust its operation with a 20% increase in the overall performance. In this case, besides the internal control unit of the building, the project will be monitored via Internet from the office of engineering in charge of the energetic concept, from Germany. As renewable energy, Geothermy was incorporated through the extraction of water from a well 75 mts. deep, with a constant temperature of 12°C, which is used to cool the air and capillaries through heat exchangers and then be infiltrated by irrigation, leaving the operation of chillers only for situations of greater demand and generation of heat. In the end of the design stage, ideally should have been from the beginning, the development of the project was compared with the scoring system LEED, finding great concordance between the advanced and the initiatives that this system promotes, therefore starting the certification of the project, aspiring to the category LEED GOLD, showing a known reference of good energetic and environmental practices.

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