Multicriteria Analysis of a Solar-Assisted Space Heating Unit with a High-Temperature Heat Pump for the Greek Climate Conditions

The goal of this investigation is the thorough analysis and optimization a solar-assisted heat pump heating unit for covering space demand building in Athens, Greece. novelty studied system use high-temperature that can operate with radiative terminal units, leading to high thermal comfort standards. examined includes flat-plate solar collectors, an insulated storage tank, auxiliary electrical resistance tank pump. economic indicates optimal design 35 m2 collectors connected 2 m3 facing total 6785 kWh. In case, life cycle cost was calculated at 22,694 EUR, seasonal coefficient performance 2.95 mean efficiency 31.60%. On other hand, multi-objective optimum selection 50 field 3 m3. scenario, 24,084 4.07 25.33%.