22 May 2008

A TOWER BASED DESIGN METHOD FOR GROUND SOURCE HEAT PUMP SYSTEMS


An optimal ground source heat pump (GSHP) system assures a problem-free
operation over the entire life cycle, proper design method for the GSHP system is crucial.
Different from traditional design methods, the presented method is modified by the long-term
performance of a practical GSHP system, which is directly reflected by continuous
temperature change of the ground, the ground thermal properties and other influential factors.
Theoretically the operation of designed GSHP is simulated based on degree-day boundary
conditions and building loads during the periods of ten years. Continuous experiment
validation on the practical GCHP system has been carried out among the years of 2003 to
2007, using a computer data acquisition system. Through the comparison between
experimental data and simulated results, the tower-based design method of GSHP system is
verified in practice.