write energy and mass flow diagram of The air in the AHU is heated exclusively by a solar thermal hot water unit. use following information: For AHU: Air output (m3/s): 3, Inlet air temperature (C): 15, Target conditioned air temperature (C): 23 ,Inlet water temperature (C): 70, Outlet water temperature (C): 30, Pressure, all lines (kPa), 100, Inlet water temperature (C) Efficiency (%): 70 For solar thermal hot water unit: Inlet water temperature (C): 25, Efficiency (%): 70, Incident heat flux (kW/m2): 1.4, Absorbing surface (m2/tube) : 0.384, No. tubes: 35