Experimental Study on a Forced-Circulation Loop Thermosiphon Solar Water Heating System

Figure 1

Schematic of the forced-circulation wickless LT-SWH system. (1) Water tank, (2) condensation spiral coil pipe, (3) condensation liquid storage tank, (4) check valve, (5) refrigerant pump, (6) evaporation liquid storage tank, (7) sight glass, (8) evaporation solar collector, (9) pressure balance pipe, (10) thermocouples