Case study report for Studenthuset, Stockholm, Sweden Long-term performance analysis of the GSHP system for a student union building
This report is part of the work within IEA HPT Annex 52 - IEA HPT Annex 52 - Long-term performance monitoring of GSHP systems for commercial, institutional and multi-family buildings, with project period January 1st, 2018 to December 31st, 2021. The Annex 52 Operating Agent is Sweden. Annex 52 aims to survey and create a library of quality long-term measurements of GSHP system performance for commercial, institutional and multi-family buildings. While previous work will be surveyed, the emphasis of the annex is on recent and current measurements. The annex also aims to refine and extend current methodology to better characterize GSHP system performance serving commercial, institutional and multi-family buildings with the full range of features shown on the market, and to provide a set of benchmarks for comparisons of such GSHP systems around the world. The results from the annex will help building owners, designers and technicians evaluate, compare and optimize GSHP systems. It will also provide useful guidance to manufacturers of instrumentation and GSHP system components, and developers of tools for monitoring, controlling and fault detection/ diagnosis. This will lead to energy and cost savings. This case study of the ground source heat pump system providing heating and cooling for the Stockholm university student union building, Sweden, has been carried out by Dr. Signhild Gehlin at the Swedish Geoenergy Center, and Professor Jeffrey D. Spitler at Oklahoma State University. Anders Larsson and Åke Annsberg at Akademiska Hus have provided the measurement data from the building automation system and information about the monitored building and its equipment and installations. The work that has led to this report has been partially funded by the Swedish Energy Agency (TERMO research program Grant 45979-1). The second author’s work has been made possible by the OG&E Energy Technology Chair.