The importance of surface air temperature fluctuations on long-term performance of vertical ground heat exchangers

Banks, 2012 Al-Khoury, 2011 Lamarche, 2010, A review of methods to evaluate borehole thermal resistances in geothermal heat-pump systems, Geothermics, 39, 187, 10.1016/j.geothermics.2010.03.003 Marcotte, 2010, The importance of axial effects for borehole design of geothermal heat-pump systems, Renewable Energy, 35, 763, 10.1016/j.renene.2009.09.015 Philippe, 2009, Validity ranges of three analytical solutions to heat transfer in the vicinity of single boreholes, Geothermics, 38, 407, 10.1016/j.geothermics.2009.07.002 Eskilson, 1988, Simulation model for thermally interacting heat extraction boreholes, Numer. Heat Transf., 13, 149, 10.1080/10407788808913609 Lazzari, 2010, Long-term performance of BHE (borehole heat exchanger) fields with negligible groundwater movement, Energy, 35, 4966, 10.1016/j.energy.2010.08.028 Loveridge, 2012 Teza, 2012, Long-term performance of an irregular shaped borehole heat exchanger system: Analysis of real pattern and regular grid approximation, Geothermics, 43, 45, 10.1016/j.geothermics.2012.02.004 Yavuzturk, 1999, A transient two-dimensional finite volume model for the simulation of vertical U-tube ground heat exchangers, ASHRAE Trans., 105, 465 He, 2012 Rees, 2013, A three-dimensional numerical model of borehole heat exchanger heat transfer and fluid flow, Geothermics, 46, 1, 10.1016/j.geothermics.2012.10.004 Olgun, 2015, Long-term performance of heat exchanger piles, Acta Geotech., 10, 553, 10.1007/s11440-014-0334-z COMSOL, User’s guide, Version: 5.1, 2015. 2009 Al-Khoury, 2010, Efficient numerical modelling of borehole heat exchangers, Comput. Geosci., 36, 1301, 10.1016/j.cageo.2009.12.010 Bidarmaghz, 2014 Narsilio, 2016, Geothermal energy, detailed modelling of ground heat exchangers, Comput. Geotech. Barnard, 1966, A theory of fluid flow in compliant tubes, Biophys. J., 6, 717, 10.1016/S0006-3495(66)86690-0 Lurie, 2008 Baggs, 1991 Bidarmaghz, 2012, Numerical modelling of ground loop configurations for direct geothermal applications, Aust. Geomech., 47, 21 Colls, 2013 Colls, 2012, Experimental study of ground energy systems in Melbourne, Australia, Aust. Geomech., 47 Johnston, 2011, Emerging geothermal energy technologies, KSCE J. Civil Eng., 15, 643, 10.1007/s12205-011-0005-7 Johnston, 2014, Direct geothermal energy demonstration projects for Victoria, Australia, IPENZ Trans., 41 Bourne-Webb, 2009, Energy pile test at Lambeth College, London: geotechnical and thermodynamic aspects of pile response to heat cycles, Géotechnique, 59, 237, 10.1680/geot.2009.59.3.237 Signorelli, 2007, Numerical evaluation of thermal response tests, Geothermics, 36, 141, 10.1016/j.geothermics.2006.10.006