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Sustainability and energy saving.

Sustainability and energy saving.

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Every day words like sustainability and energy saving take relevance, from MADE Innovation hope this is not just a kind of trend, we believe in the improvement of this important aspects with a correct use of innovation through design, new materials and technologies. In this post we focus on two projects that resume these aspects.

The first project is Oltu, is a refrigeration system that works without energy, by using the warm from an electrical fridge, and allow to storage fruits and vegetables in healthier conditions. The project has been selected by the Spanish jury as the national winner of 2013 James Dyson Award.

The tandem between Oltu and the fridge, create a sustainable refrigeration system. This type of storage makes the user select the appropriate temperature and humidity conditions to keep the fruits and vegetables. The warm produced by the fridge goes into the Oltu vases, this are always wet by capillarity effect. In this way there is a constant refrigeration of the vases. the user only has to worry about filling water in an specific vase.

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The second Project focuses on drywall development. A research team from the Universidad Politécnica de Madrid (UPM), have developed and patented these appearance similar to gypsum panels capable of storing heat energy. Panels, combined with passive (such as sunlight or natural ventilation) strategies can reduce the energy consumption of the buildings up to a 40.

This step helps alleviate the problem of energy supply, since in Spain the 80% of the energy is imported.

The research of construction and architectural technologies group from the school of architecture of the UPM is based on the incorporation of PCM (Phase Change Materials) to the panels. This new constructive element is capable of storing, in 1.5 cm thick, five times the heat energy of a conventional plaster with the same thickness panel. Thus, manages to keep the room temperature where installed in the comfort range (20 – 30 ° C) without air conditioning systems.

To avoid problems with the plaster during the liquid phase have been chosen as PCMs, paraffin microencapsulated, manufactured by BASF. In addition, to achieve a high percentage of PCMs on the panel and, at the same time, ensure compliance with the regulations regarding physical and mechanical performance, other two additives have joined the mix: fibers and thinning.

Experimentally have been combined aggregates – plaster, PCM, fibers and thinning -, varying the proportions for different compounds. It has been chosen the combination that contains a higher percentage of PCMs – 45 – complying with the applicable regulations, and it was thermally tested. (Source: Universidad Politécnica de Madrid)

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