Study of technical and economic viability of the Passivhaus system in different geographical areas
Tutor / director / evaluatorLafont Rogel, Alejandro
Document typeBachelor thesis
Rights accessOpen Access
Currently the construction sector is one of the ones that produces the most greenhouse emissions and therefore it is important to try to reduce them. One of the main reasons for this is the very low overall level of energy efficiency of buildings. The “Passivhaus” standard was born to improve energy efficiency, which can reduce between 80 and 90% of the energy consumption of a home following 5 basic points: abundant thermal insulation, elimination or minimization of thermal bridges, air tightness of the building envelope, include a ventilation system with heat recovery and install a quality carpentry to minimize heat losses. This project aims to analyze the technical and economic viability to build a type building in two places (Alp and Tarragona) with a quite different climate in Catalonia. To do this, an exhaustive market study of the two chosen areas must be carried out, due to the motivations set out in the work, with the objective of determining what type of housing is demanded and knowing what the average unit value of the area is. Previously, a study of the trends of the real estate sector is carried out to know what the economic situation is and its future prospects. Then the urban planning of the two areas will be observed to see what the limits of each place are and that the building does not violate the regulations. Once these limits are defined, a type project will be proposed that follows the market trend, complies with urban and habitability regulations and also an optimal design to obtain the Passivhaus standard. The next step will be to make the necessary calculations with the PHPP (Passive House Planning Package), which is a tool developed by the Passive House Institute in the 90s to design low-energy buildings, especially to design passive buildings. The tool helps in the design phase to optimize passive strategies, even active ones and thus achieve buildings with high energy efficiency. Calculations will be made for the two zones because, although much of the building will be the same, it is taken into account that the climate, the envelope and other elements are different. Finally, after complying with the passive house requirements, an economic viability study will be carried out to determine if the proposed proposal is economically profitable at the level of construction, management and administrative costs in the two zones, one or none.