1. Geothermal energy;ASHRAE,2011
2. Unitary air conditioners and heat pumps;ASHRAE,2008
3. Ground heat storage – thermal analysis of duct storage systems I. Theory;Hellström,1991
4. Ground-source heat pump systems: the first century and beyond;Spitler;HVAC&R Res,2011
5. A transient two-dimensional finite volume model for the simulation of vertical U-tube ground heat exchangers;Yavuzturk;ASHRAE Trans,1999