Heidenreich, Hannes

Diploma Thesis:
1822

Topic:
Low tech building concepts in timber construction

Editor:
Hannes Heidenreich

University Professor Responsible:
Univ.-Prof. Dr.-Ing. Dipl.-Wirt.-Ing. Jens Otto

Supervisor:
University Supervisor: Dipl.-Ing. Carolin Senkel

Editing Period:
14.01.2021 until 14.05.2021

Abstract:
Against the backdrop of climate change and the energy transition, the building sector is facing major challenges, which have so far often been met with greater energy efficiency and energy-efficient building technology. In this context, the conception of low-tech buildings has become established; this type of building gives preference to the planning of structural solutions over the use of building technology. In this respect, a great potential is attributed to the construction of wooden houses, due to their positive CO2 balance.
The conception of low-tech buildings provides for the holistic planning of constructional measures in order to keep the building comfortable all year round and at a comfortable level even in the case of fluctuating uncertainties. Uncertainties in this context are primarily user behaviour, the outdoor climate and poorly controlled building services.
A low-tech building is defined by intelligently used low-tech components. In this work, the focus was mainly on effective storage masses, different ventilation behaviour and shading.
By means of a dynamic simulation in Designbuilder / EnergyPlus, the interaction of the components is considered in a parameter study and their influence on the heating demand as well as on the summer overheating potential is illuminated. Based on these criteria, the technical feasibility of the building is examined.
The simulation results show that the influence of storage masses in the assumed timber house can be classified as low with regard to the examined criteria of heating demand and overheating hours. However, the positive influence of heavier constructions on the heating demand and overheating hours increases when the concept is coupled with optimised ventilation behaviour and sun protection.