Results of comparative study for five typical simulation programs (HASP/ACSS,
EnergyPlus, DOE-2, Dest and HVACSIM+(J) are discussed using. a certain reference model
of an actual building. The maximum and annual cooling and heating loads and annual
energy consumption are compared. Efforts were made to make calculation conditions
coincide with each other, but it was not always completely successful due to specific
character of algorithms included in each program, so that calculation results differed a little
with each other and with actual results. Several case studies have been carried out for each
program how design parameters and/or control strategies result on energy consumption
and/or indoor environment, which proved availability of each program for commissioning
use in various phases depending on their characteristics
