4. Heat pump with vertical collector of 600 m length had brine warming 30 w/m and COP 4. Annual amount of operating hours is 4000 h. Please advice size and amount of PV solar panel to ensure sufficient electrical energy for heat pump operation during year. Assume that PV panel and heat pump connected to the public grid. No need for energy storage.m


4. Heat pump with vertical collector of 600 m length had brine warming 30 w/m and COP 4. Annual amount of operating hour...