Quality assurance, handover and monitoring
Saturday, 4 May 2019, 2:20 pm, Großer Saal (ground floor), simultaneous translation into English
This session will contain the very impressive monitoring results of a number of Passive House projects across Europe. The impressive results of the Heidelberg Bahnstadt project, verified by operational measurements, show a 95% reduction in greenhouse gasses for the district, a remarkable result. The details of the monitoring program for the Bahnstadt district will be presented for the session attendees and an in depth look at the operational performance will be undertaken.
The monitoring project for a school in Halle, Germany will demonstrate how an integrated renewable energy plan can provide almost all of the needs of a school building. This detailed monitoring program has also been used by the building’s designers to optimise the performance of the renewable energy and building systems after the school’s commissioning and further enhance the operational performance. This session will also contain the latest work from the Passive House Institute on the monitoring of large buildings and the post commissioning optimisation of operational performance.
|2:20 pm||Three years monitoring analysis of two residential NZEBs||Fabian Ochs|
Commissioning & Monitoring as the key to success
|Quality assurance of the planning and construction phases of Passive House buildings has been established through training programs (Certified Passive House designers and craftsmen) and product and building certification. Nevertheless, systematic startup procedures play a key role in successful operation, especially for larger buildings. The practices currently used in the construction industry are often inadequate in this respect, and at times, undiscovered weakness originating in the planning phase come to light. In monitoring the building, systematic measurements are performed and compared against expected values, while taking into account the boundary conditions. The results form the basis for any targeted actions.|
Monitoring in the Bahnstadt
|The Bahnstadt district in Heidelberg is currently the site of the largest Passive House settlement in the world. However, have the efforts made by the city of Heidelberg to ensure quality paid off? KliBA has evaluated the values for district heating and electricity demand for 14 residential building plots with a total of around 2,300 residential units. The conclusion: Together with the new wood-fired combined heat and power plant, 95% CO2 reduction will be achieved. A close look at the heat flow shows that the heating energy is mostly in the target corridor and that the building envelope is unproblematic. Three construction sites are currently being analysed in more detail.|
Less is more - operating experience from the Passive House school St. Francis in Halle / Saale
|The two-track St. Francis Primary School in Halle (Saale) is built almost entirely from a timber construction and meets the Passive House Standard. It began operation in 2014. The school uses a geothermal heat exchanger for air preheating, thermal solar collectors, photovoltaic and rainwater. Between 2013 and 2018, the school was comprehensively monitored. The energy concept has been evaluated; furthermore, exemplary components and ideas have been identified. The presentation explains essential monitoring results and also indicates with which measurement technology and personnel expense the findings could be obtained.|