Patents Analysis of Thermal Bridges in Slab Frontsand Their Effect on Energy Demand

Nowadays, the building sector is one of the main sources emitting pollutant gases to the atmosphere due to its deficient energy behaviour. Among the elements of the envelope, the thermal bridges are where the heat losses and gains mainly occur, depending on the season of the year. To reduce the effect of the thermal bridges, there are different patented technologies which give provide solutions. In this paper, the thermal behaviour of five patented slab front (slab-façade) thermal bridges are analysed in a case study located in the south of Spain. Moreover, the influence of the thermal bridge on the energy demand from the building analysed was evaluated, both in the current scenario and future ones (2020, 2050 and 2080). The results reveal that the use of the patents in slab fronts can mean reductions by up to 95.74% in the linear thermal transmittance. Likewise, due to the improvement of the thermal bridge of slab fronts by using the patented designs which offered the best features, a savings in the global energy demand for heating higher than 18% as well as a savings in the global energy demand for cooling higher than 2.80% could be achieved in all the time scenarios considered.

[1]  S. Hewitt,et al.  2007 , 2018, Los 25 años de la OMC: Una retrospectiva fotográfica.

[2]  Eduardo Grala da Cunha,et al.  Thermal bridges modeling in South Brazil climate: Three different approaches , 2018 .

[3]  S. Sajjadian.  Risk Identification in the Early Design Stage Using Thermal Simulations—A Case Study , 2018 .

[4]  Giorgio Baldinelli,et al.  Detection of thermal bridges from thermographic images by means of image processing approximation algorithms , 2018, Appl. Math. Comput..

[5]  Francisco Javier Guevara-García,et al.  El control adaptativo en instalaciones existentes y su potencial en el contexto del cambio climático. , 2017 .

[6]  Annette M. Harte,et al.  Quantification of heat losses through building envelope thermal bridges influenced by wind velocity using the outdoor infrared thermography technique , 2017 .

[7]  Stefano Fantucci,et al.  Insulating coat to prevent mold growth in thermal bridges , 2017 .

[8]  Kwon Sook Park,et al.  Energy Demand Reduction in the Residential Building Sector: A Case Study of Korea , 2017 .

[9]  Víctor Echarri,et al.  Thermal Ceramic Panels and Passive Systems in Mediterranean Housing: Energy Savings and Environmental Impacts , 2017 .

[10]  Gianluca Mortarotti,et al.  Thermal Analysis and Energy-Efficient Solutions to Preserve Listed Building Façades: The INA-Casa Building Heritage , 2017 .

[11]  Paulo Santos,et al.  The Effectiveness of Thermal Insulation in Lightweight Steel-Framed Walls with Respect to Its Position , 2017 .

[12]  Annette M. Harte,et al.  Infrared thermography technique as an in-situ method of assessing heat loss through thermal bridging , 2017 .

[13]  Carlos Rubio-Bellido,et al.  Optimization of annual energy demand in office buildings under the influence of climate change in Chile , 2016 .

[14]  Karolis Banionis,et al.  The Influence of Thermal Bridges for Buildings Energy Consumption of “A“ Energy Efficiency Class , 2016 .

[15]  Jin-Hee Song,et al.  Evaluation of alternatives for reducing thermal bridges in metal panel curtain wall systems , 2016 .

[16]  S. A. Al-Sanea,et al.  Effect of Thermal Bridges in Insulated Walls on Air-Conditioning Loads Using Whole Building Energy Analysis , 2016 .

[17]  Jamie Goggins,et al.  Lifecycle environmental and economic performance of nearly zero energy buildings (NZEB) in Ireland , 2016 .

[18]  Paulo Santos,et al.  Lightweight steel-framed thermal bridges mitigation strategies: A parametric study , 2016 .

[19]  Jolanta Šadauskienė,et al.  A Simplified Methodology for Evaluating the Impact of Point Thermal Bridges on the High-Energy Performance of a Passive House , 2015 .

[20]  Elvira Ianniello,et al.  U-value in situ measurement for energy diagnosis of existing buildings , 2015 .

[21]  Giorgio Baldinelli,et al.  Infrared Thermography Assessment of Thermal Bridges in Building Envelope: Experimental Validation in a Test Room Setup , 2014 .

[22]  G. Edwards,et al.  Verification of calculation code THERM in accordance with BS EN ISO 10077-2 , 2014 .

[23]  Luca Evangelisti,et al.  Buildings Energy Efficiency: Interventions Analysis under a Smart Cities Approach , 2014 .

[24]  Paulo Santos,et al.  Thermal performance of lightweight steel framed wall: The importance of flanking thermal losses , 2014 .

[25]  P. G. Vicente,et al.  Transient modeling of high-inertial thermal bridges in buildings using the equivalent thermal wall method , 2014 .

[26]  Fábio Luiz Teixeira Gonçalves,et al.  Cork-based mortars for thermal bridges correction in a dwelling: Thermal performance and cost evaluation , 2014 .

[27]  Vincenzo Corrado,et al.  A building thermal bridges sensitivity analysis , 2013 .

[28]  Patrick James,et al.  Transforming existing weather data for worldwide locations to enable energy and building performance simulation under future climates , 2013 .

[29]  Hua Ge,et al.  Impact of balcony thermal bridges on the overall thermal performance of multi-unit residential buildings: A case study , 2013 .

[30]  Giorgio Baldinelli,et al.  A quantitative methodology to evaluate thermal bridges in buildings , 2012 .

[31]  Giuseppe Peter Vanoli,et al.  Different methods for the modelling of thermal bridges into energy simulation programs: Comparisons of accuracy for flat heterogeneous roofs in Italian climates , 2012 .

[32]  I. Simões,et al.  Simulation of dynamic linear thermal bridges using a boundary element method model in the frequency , 2011 .

[33]  L. Marletta,et al.  Energy and cost evaluation of thermal bridge correction in Mediterranean climate , 2011 .

[34]  Kevan A. C. Martin,et al.  Problems in the calculation of thermal bridges in dynamic conditions , 2011 .

[35]  Daniel R. Rousse,et al.  Experimental and numerical characterization of thermal bridges in prefabricated building walls , 2010 .

[36]  Semiha Kartal,et al.  Simple method for calculation of heat loss through floor/beam-wall intersections according to ISO 9164 , 2007 .

[37]  Jn Hacker,et al.  Constructing design weather data for future climates , 2005 .

[38]  Constantinos A. Balaras,et al.  Infrared thermography for building diagnostics , 2002 .

[39]  Alexei G. Sankovski,et al.  Special report on emissions scenarios : a special report of Working group III of the Intergovernmental Panel on Climate Change , 2000 .

[40]  J. Balado,et al.  Thermal-based analysis for the automatic detection and characterization of thermal bridges in buildings , 2018 .

[41]  Theodoros Theodosiou,et al.  Analysis of the Thermal Bridging Effect on Ventilated Facades , 2017 .

[42]  Competitive low carbon economy in 2050 , 2013 .

[43]  Ranz,et al.  Observed and projected climate shifts 1901 – 2100 depicted by world maps of the Köppen-Geiger climate classification , 2010 .

[44]  Patrick James,et al.  Climate change future proofing of buildings—Generation and assessment of building simulation weather files , 2008 .

[45]  Theodoros Theodosiou,et al.  The impact of thermal bridges on the energy demand of buildings with double brick wall constructions , 2008 .