22 May 2008
The application of renewable energy is, due to political aspirations particularly in
the field of CO2 reduction, an increasingly important topic. Heat pumps can thus significantly
contribute to a sustainable energy supply.
arsenal research is engaged with heat pump monitoring systems since 2002. During this
period, arsenal research has monitored several heat pump systems.
The standardized monitoring methodology is split into three parts: The first part involves a
questionnaire regarding the non-measurable data. The second part consists in installing a
system for continuous data collection and recording. The development of a database for the
administration and evaluation of the measured data constitutes the third part of the
The results should provide a base for heat pump manufacturers, installers, energy providers,
stakeholders and funding agencies.
The following paper presents the monitoring methodology according to the arsenal research
standards. In addition, results from several measurements as well as analysis concerning the
seasonal performance factor (SPF), the energy costs and TEWI (Total Equivalent Warming
Impact) are described. Finally, comparisons between the pollutant emissions resulting from
the power generation for the operation of the heat pump and the emissions of a gas or oil
boiler are made.