ALPENLAND- ZUKUNFTSHAUS- WOLKERSDORF
Abstract
Space heating and domestic hot water generation are responsible for around 20% of Austrian greenhouse gas emissions. In the future, rising standards for the building envelope are expected to reduce the demand for heating, which means that the proportion of energy used for the provision of domestic hot water will partially exceed the heating requirements. At the same time, the temperature requirements in the area of heating decrease, which enables the use of inexpensive heat sources such as waste heat or ambient heat via heat pumps. This is opposed by the requirement for domestic hot water preparation, which requires hygienic reasons (danger from Legionella) heat transfer medium flow temperatures greater than 60 ° C. Air heat pumps that are frequently used in practice often have low working figures for water heating, due to high temperature swings between the heat source (outside air) and heat sink (flow temperature of hot water) in the winter months. This project therefore examines hot water preparation concepts that use the return of the heat emission system as a heat source for the heat pump, and the lower temperature rise between the heat source and heat sink as well as the constant temperature level throughout the year, which increases the overall efficiency of water heating.
keywords Heat pump Thermal activated components model predictive controller
Publikationen
Project staff
Magdalena Wolf
Dipl.-Ing. Dr. Magdalena Wolf Bakk.techn.
magdalena.wolf@boku.ac.at
Tel: +43 1 47654-89315
Project Leader
15.04.2020 - 14.01.2026
Thomas Keller
Dipl.-Ing. Thomas Keller
thomas.keller@boku.ac.at
Tel: +43 1 47654-89314
Project Staff
15.04.2020 - 14.01.2026
Bernhard Kling
Dipl.-Ing. Bernhard Kling B.Sc.
bernhard.kling@boku.ac.at
Tel: +43 1 47654-89314
Project Staff
15.04.2020 - 14.01.2024
Tobias Pröll
Univ.Prof. Dipl.-Ing. Dr.techn. Tobias Pröll
tobias.proell@boku.ac.at
Tel: +43 1 47654-89311
Project Staff
15.04.2020 - 14.01.2026
Constanze Rzihacek
Constanze Rzihacek B.Sc.
constanze.rzihacek@boku.ac.at
Project Staff
15.04.2020 - 14.01.2026