Designofgroundheatexchangersforheatpumpsisincreasinglydonewiththesupportof easy-to-use,fastcomputerprograms.Theseprogramsvarywidelyincalculationapproachand accuracy.Thispapergivesashortoverviewoftheearlydevelopment,andfocusesmainlyon programsbasedontheg-function-method.Thismethodisasuitablecompromisebetween rulesofthumbandtablesononehandandtime-consumingnumericalsimulationontheother hand.Otherprogramsarealsodiscussedbriefly,andastudyonthereliabilityofsuchprograms isdiscussed.
PC-programsandmodelingforboreho-图一