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Blanco Carranza J.,Bla and Bla Estudio | Serrano Lanzarote B.,Polytechnic University of Valencia | Ortega Madrigal L.,Instituto Valenciano Of La Edificacion | Soto Frances L.,Instituto Valenciano Of La Edificacion
Vernacular Architecture: Towards a Sustainable Future - Proceedings of the International Conference on Vernacular Heritage, Sustainability and Earthen Architecture | Year: 2015

The Cabanyal-Canyamelar district of Valencia, in contact with the Mediterranean Sea, has a heritage value recognized in 1993 when it was declared a place of cultural interest in the historic-artistic category. However, the area has a significant level of deterioration and it is urgent to enhance regeneration actions, especially for the buildings go heritage value. This paper presents the conclusion reached from a study developed about the energy performance of vernacular architecture in this neighborhood. Finally, it concludes that their traditional construction presents good behavior that complements perfectly the Mediterranean climate in which it is located. It has also been found that the building types have a potential to support future renovations, compatible with their heritage value, and also give value to the bioclimatic quality of the historic buildings in the neighborhood. © 2015 Taylor & Francis Group.

Pinazo Ojer J.M.,Polytechnic University of Valencia | Soto Frances V.M.,Polytechnic University of Valencia | Sarabia Escriva E.,Polytechnic University of Valencia | Soto Frances L.,Instituto Valenciano Of La Edificacion
International Journal of Heat and Mass Transfer | Year: 2015

A popular method to obtain the 1-D conduction heat transfer of multi-layered plane geometries is attributed to Stephenson and Mitalas (1971) and Mitalas (1968). It is applied in different forms known as; CTF (Conduction Transfer Functions) or RT (Response factors). Roughly his idea consists in sampling the temperature at each side of a wall at a certain fixed time step (usually one hour). Between sampling points, due to the lack of information, a linear profile for the evolution of those temperatures is imposed. A triangle shaping function is used to get such a piecewise linear profile. The method although is powerful, has passed through the years without questioning. The paper proposes an improvement by extending the idea of a shaping function. Instead of assuming a linear evolution, a specially designed second order (parabolic) evolution is enforced. Now, two parameters must be determined to define the temperature shape between sampling points at both sides of the wall; on one side, the new values of the temperatures and on the other, their acceleration within the time step. Contrary to Mitalas, now two equations are needed at each side to determine these new shapes; the heat power flux balance at both surfaces at the new sampling point (like in Mitalas' method) plus the thermal energy balance along the period of time between sampling points. This turns the scheme into an energy conservative one. Finally it is shown that the accuracy obtained by the parabolic case at one hour of sampling rate is similar to the linear case with a sampling rate of five minutes. © 2015 Elsevier Ltd. All rights reserved.

Ortega L.,Instituto Valenciano Of La Edificacion | Serrano-Lanzarote B.,Polytechnic University of Valencia | Fran-Bretones J.M.,Polytechnic University of Valencia
Informes de la Construccion | Year: 2015

The estimated service life, as well as its components materials, is critical in order to establish realistic building maintenance programs, manageable and economically viable. The methods based on durability factors, proposed in ISO- 15686, are an efficient way of estimating the building's service life. However, there has been limited information on quantifying the durability values, and their relationship to vulnerability or processes of deterioration which might present a constructive element. Then, this paper describes a method to characterize the most frequent damage mechanisms in the envelope of a building, since it is an element with a high risk of lesions and, accordingly, with a reduced durability. The system used to generate this information was the Delphi method that involves consultation to groups with expert-based approach to generate convergence of views. The results allow the identification and quantification of relevant durability factors that determine the occurrence of damage to an element affecting its service life.

Agency: Cordis | Branch: H2020 | Program: CSA | Phase: EE-05-2015 | Award Amount: 1.54M | Year: 2016

ENERFUND is a tool that will rate and score deep renovation opportunities like a credit score used by banks to rate clients. The tool will be based on a methodology to be developed and on a set of parameters such as EPC data, number of certified installers, governmental schemes running, etc. By providing a rating for deep renovation opportunities whether for private establishments or for public buildings funding institutes can provide targeted loans, retrofit companies can identify sound opportunities, municipalities can promote targeted incentives and the publics trust for retrofitting will be enhanced. The objectives of the current proposal is to (a) analyse the status quo and needs of deep renovation stakeholders and the public, (b) build upon the outcomes of previous projects to create a tool for deep renovation financing, (c) promote the tool to all interested stakeholders, (d) measure and document the impact of the tool on deep renovation strategies and financing and (e) provide a powerful tool that will assist EU stakeholders meet their obligations on increasing renovation rates. The partners, from 12 countries, include 2 universities, in charge of the project management and the development of the methodology behind the tool, 2 SMEs with extensive experience on database management, EPC mapping, development of online decision-making tools, and 11 Ministries, Energy Agencies, NGOs, etc that are connected with the relevant stakeholders throughout Europe and can promote the tool. The expected impact is approximately 45GWh due to the use of the tool to promote deep renovation of buildings and through our training and dissemination activities. ENERFUND will account for approximately 1% of the current annual renovation rate during the project duration. The strategic, long term aim is to provide a unified global tool for the promotion, not only of deep renovation of buildings, but of all energy related activities in the building sector.

Agency: Cordis | Branch: H2020 | Program: CSA | Phase: EE-04-2014 | Award Amount: 1.50M | Year: 2015

A successful design and construction process for NZE buildings and renovation requires to follow an integrated design approach and to work in multi-disciplinary teams. However, this approach is still not common PROF-TRAC offers a solution for this barrier by developing and maintaining an education platform for dedicated trainings and continuous development for professionals, i.e., both technical experts as architects, in integrated multi-disciplinary approach for nZEB principles, in a Post Graduate qualification/curriculum. PROF-TRAC has the following objectives: 1. Mapping of the required skills and current skills gap of professionals in NZEB. 2. Development of an open training platform including methods for a systematic and sustainable access to knowledge. 3. Development of a Train the Trainers programme for the developed curriculum and/or qualification scheme This training programme will be tested on a national scale in six national pilots and on an international scale by a train-the-trainer program provided by two EU umbrella organisations representing engineers (REHVA) and architects (ACE). 4. Development of a repository of the training material for use in education and post-initial education PROF-TRAC is specifically targeting the need to train architects, engineers, building managers and other building professionals in the necessary skills for designing, constructing, managing and operating NZE construction and retrofitting. The proposed approach will lead to a substantial reduction of skills mismatch for professionals, Increased managerial capacity to support innovation and sustainable energy use in buildings through new leadership, design, construction and management skills for professionals at middle and senior level and fostering of a better cooperation between disciplines. PROF-TRAC is building upon previous IEE projects (BuildUpSkills, IDES-EDU etc.) and is initiated by the largest European associations for the sector (REHVA, ACE, CECODHAS).

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