It Works—Long-Term Performance Measurement and Optimization of Six Ground Source Heat Pump Systems in Germany

Franziska Bockelmann and M. Norbert Fisch
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Franziska Bockelmann: Steinbeis-Innovationszentrum energie+, Mühlenpfordtstraße 23, 38106 Braunschweig, Germany
M. Norbert Fisch: Steinbeis-Innovationszentrum energie+, Mühlenpfordtstraße 23, 38106 Braunschweig, Germany

Energies, 2019, vol. 12, issue 24, 1-22

Abstract: Long-term studies of ground source heat pump (GSHP) heating and cooling systems for six different buildings (commercial, institutional and multi-family buildings) were conducted in Germany by Steinbeis-Innovationszentrum (SIZ) energy+. Three of them are equipped with borehole heat exchangers, and the others use energy piles as heat exchangers. This paper deals with a demonstration of the investigated buildings, the measured values and performance, and the obtained results include important findings and experiences, problems encountered and possible preventive measures to avoid mistakes. After ten years of operation, it can be stated that the systems work and achieve their planned efficiency but require constant control and regulation to avoid faulty operation. An analysis of the implemented control strategies shows that, for all these heating and cooling systems, holistically coordinated control strategies that are verified during commissioning are required.

Keywords: GSHP systems; long-term performance measurement; efficiency; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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