Inhaltsverzeichnis
Kontext Links
Maintenance costs minus - reduction of maintenance costs of ventilation systems in plus energy buildings
The maintenance costs of a ventilation system are an important component of the operating costs of a plus-energy building. In this project the maintenance costs of ventilation systems in built passive houses will be compared.
Titel und Synopse
Wartungskosten Minus - Reduktion der Wartungskosten von Lüftungsanlagen in Plus-Energiehäusern
Die Wartungskosten einer Lüftungsanlage sind ein wichtiger Bestandteil der Betriebskosten eines Plus-Energiegebäudes. In diesem Projekt werden die Wartungskosten von Lüftungsanlagen in gebauten Passivhäusern gegenübergestellt.
Project description / tasks
Status
ongoing
Summary
Starting point / motivation
Due to the development and spreading of the passive construction method in Austria during the last years, designers, building promoters and caretakers have been confronted with new technologies. Especially the ventilation system with heat recovery is the main part of passive and plus energy buildings. The maintenance costs in particular must not be neglected. If not controlled, they easily can compensate the saving of heating costs of passive and plus energy buildings. Currently, the heating costs of "building of tomorrow" projects lie at approx. 1 €/m²a. For comparison, the currently collected maintenance costs are extremely high, mostly with 2,5 to 3,5 €/m²a compared to the neighbouring countries, e.g. in Germany, these costs lie at 0,45 €/m²a. If plus energy houses should prevail against low energy houses, the maintenance costs have to be lower than the savings in heating costs.
Without maintenance, the performance and function of the ventilation system is not ensured. Thereby, the durability of the equipment is decreased and hygienic and health risks can occur. Moreover, the system is not able to work efficiently anymore and the energy saving and ecological operating is not guaranteed. The frequency of the maintenance effects the energy consumption (e.g. polluted filters increase the loss of pressure and the power consumption).
Contents and goals
Consequently to the results of the "building of tomorrow" project "comparison of operation costs and maintenance costs of passive and low energy houses" there will be almost all maintenance contracts of the "building of tomorrow" passive house projects analysed. The undertaken maintenance tasks will be evaluated and compared with the maintenance work which has to be done according to the EN-standards, DIN-standards, OeNORMs, VDI-guidelines and VDMA-codes. In addition the experiences of the big building promoters of Vienna, Vorarlberg, Styria and Salzburg will be integrated into the project. A list of maintenance tasks which have to be undertaken, including the necessary frequency and costs will be developed. Furthermore, the maintenance costs of the examined projects will be compared.
Expected results / conclusions
The maintenance costs of ventilation systems in built passive houses will be compared. A list of necessary maintenance works with their corresponding frequency will be worked up.
Project partners
Project management
Schöberl & Pöll GmbH, Schoeberl & Poell GmbH
Contact address
Schöberl & Pöll GmbH
Bmst. DI Helmut Schöberl
Ybbsstraße 6/30, A-1020 Wien
Tel.: +43 (1) 7264566-0
Fax: +43 (1) 7264566-18
E-Mail: helmut.schoeberl@schoeberlpoell.at
