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