Comparison of heating-cooling sytems for a sample building

In this study, for a sample building with 11.000 m2 area, 5 common HVAC systems have been designed and modeled in BIM platform and the initial and operation cost of the systems were compared using energy analyze models to find optimum system. The sample building is located in İstanbul with three floors. All the design process has been done using Autodesk Revit for each system and energy analysis have been performed using Carrier HAP program. The first system is the existing system which was Variable air flow system (VAV) + radiator, the other four systems are water source heat pump, heat recovery VRF / VRV, heat pump VRF / VRV + Radiator and 4 pipe Fan coil system respectively. In all 5 systems, energy consumption, initial investment cost, operation and maintenance costs are compared and according to the results optimum systems were proposed for short, medium and long terms.