August 2009 Issue (files are in PDF format)
Late Season Injection
Heat can be extracted from the air in the winter whenever the air temperature exceeds the heat exchange fluid temperature. Such heat extraction is efficient and the heat is stored for later use.
Progress Report – Air Conditioning (Aug 22)
The AE system has performed very well for the air conditioning function. The high COP means that the objective of eliminating the summer power demand peak can be achieved either via using the heat pump or by passive cooling. Heat balance results for the year to date are reported.