Domestic water heating with tube collector Familiarisation with the functions of the evacuated tube collector and the solar circuit, operating the solar controller via web browser Features - tube collector converts solar energy into heat - system with heat exchanger and two separate circuits - solar controller with data logger and integrated router for operation via web browser using an end device and for tracking experiments on numerous end devices: PC, tablet, smartphone Learning objectives/experiments - familiarisation with the functions of the evacuated tube collector and the solar circuit - determining the net power - relationship between flow and net power - determining the collector efficiency - relationship between temperature difference (collector/environment) and collector efficiency Specification [1] investigating the function and operating behaviour of a tube collector [2] solar thermal evacuated tube collector with selectively absorbing coating [3] connection of absorbers by heatpipes [4] adjustable collector inclination angle [5] solar circuit with collector, pump, expansion vessel and safety valve [6] hot water circuit with buffer tank, pump and plate heat exchanger [7] 4 bimetallic thermometers [8] solar controller with temperature, flow rate and illuminance sensors [9] data logger with SD memory card [10] integrated router for operation and control via web browser using an end device and for tracking experiments on any number of end devices [11] experiment evaluation on Windows-based end devices possible, with additional producer software of the solar controller [12] operation with solar radiation or HL 313.01 Artificial light source Technical data Solar circuit - collector -- total surface: 2,5m2 -- absorbing surface: 1,4m2 -- number of tubes: 15 -- rated throughput: 58L/h - solar station -- solar pump: adjustable -- safety valve: 6bar Hot water circuit - plate heat exchanger: 3kW, 10 plates - buffer tank 70L Measuring ranges - flow rate: 20...320L/h - temperature: 4x 0...160°C - pressure: 0...6bar 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1660x800x2300mm Weight: approx. 240kg