Universidad de Navarra

Pamplona, Navarra, Spain

Departments View all

Department of Nutrition, Food Science and Physiology
631
Total Impact Points
39
Members
Division of Gene Therapy and Hepatology
990
Total Impact Points
33
Members
Department of Pharmacy and Pharmaceutical Technology
794
Total Impact Points
29
Members

Publication History View all

  • Source
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    ABSTRACT: This investigation deals with the thermal performance of two passive solar components. An attached sunspace with horizontal heat storage and another one with vertical thermal storage were designed in order to optimize the use of solar gain, its storage and distribution in an industrialized component. These sunspaces have been tested under real conditions, comparing their thermal performance with two commonly used components in residential buildings in Spain: a window and a double window making up an attached sunspace. Different series of experimental measurements were made in two test-cells exposed to outdoor conditions in Pamplona (Northern Spain). As a result, nine scenarios during winter 2011 and six ones during summer 2012 have been carried out, comparing all the prototypes two by two with different use modes. Results show that a sunspace with heat storage takes advantage of the solar energy and improves the indoor thermal performance of the adjacent room during winter in a better way than a window or a simple sunspace, and that it has also a better performance in summer. The best results in winter and summer were obtained when an appropriate use of the component is performed, in concordance with outdoor conditions; some thermal control actions for the good performance of these components are suggested.
    Energy and Buildings 09/2014; 80:231–246.
  • Medicina Paliativa 05/2014;
  • Source
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    ABSTRACT: The performance of air lime mortars modified by the incorporation of large amounts of nanostructured colloidal silica–nanosilica, NS – (6, 10 and 20 wt.% with respect to lime) was the main objective of this work. Fresh mixture properties (water demand, setting time and plastic shrinkage), mechanical strengths up to one year and specimens’ durability after accelerated ageing conditions (climatic chamber, freeze–thaw cycles and sulfate attack by MgSO4 corrosion test) were evaluated. NS was seen to have a strong pozzolanic activity in air lime media. Although the addition of NS gave rise to an increase in volume contraction, the superficial cracking caused by the drying shrinkage was reduced. A noticeable increase in the compressive strength values was observed in the NS-bearing mortars owing to the NS filler effect and the C–S–H formation, as proved by SEM examination and MIP analysis. A honeycomb-shaped network of C–S–H phases appeared as the prevailing microstructure in mortars with large NS additions. In the face of accelerated ageing processes, the presence of NS made the mortars more durable, delaying the progress of decay.
    Construction and Building Materials 05/2014; 58:147–158.

Information

  • Address
    Pio XII, 53, 31008, Pamplona, Navarra, Spain
  • Head of Institution
    D. Alfonso Sánchez-Tabernero
  • Website
    http://www.unav.edu
  • Phone
    +34 948425600
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1057 Members View all

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Top publications last week by downloads

 
Medicina Clínica 01/2001; 117(10).
93 Downloads
 
Long Range Planning 04/2010;
75 Downloads

Top Collaborating Institutions

Collaborations

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Rg score distribution

See how the RG Scores of researchers from Universidad de Navarra are distributed.